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WeatherZero.exe Trojan Wacatac Analysis

Updated 11 days ago
Checked by Malware Check
WeatherZero.exe

Technical Analysis

File Name WeatherZero.exe
File Type
PE32 executable (GUI) Intel 80386, for MS Windows
Scanner Version 1.0.222.174
Database Version 2025-08-03 12:00:49 UTC
⚠

Ransom.Win32.Wacatac.cld

Malware family: Wacatac

Wacatac malware demonstrates multiple malicious capabilities including data theft, system compromise, and secondary payload deployment. It can download additional malware components including ransomware to extend attack impact.
N/A
Detection Rate
6,158,840
File Size (bytes)
2025-08-03
Analysis Date

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File Identification

Hash Type Value Action
MD5
9b9dcdc20109ab88b80fc94d15efb636
SHA1
fbb772787cae0ad52540d3a0f7847be6432a7a2c
SHA256
f66863c2345452a58ba5380f393471836e66a8d8247ce320ce241cdb84808f7d
SHA512
2df42f5a3cbcb3adc33838e72d3c0dd381372a92aa3af2c221a6c3c6b536cadfd12d594523338d78aa5120869b62a5e1607c015c1a7676c0efbb84b929fa9ff0
ImpHash
4419e484e276ee1537b37e2081fdee7a

PE Analysis

Basic Information

▼
Icon
Hash: 2fc83c69cf24f196fd7341bf0d1936f8
Fuzzy: 08ff99ce15e012a18d4bf76aef327a9e
dHash: 2351313cd8584123
Image Base 0x00400000
Entry Point 0x0085a6fa
Compilation Time 2022-05-25 12:51:31
Checksum 0x005e623b (Actual: 0x005e623b)
OS Version 5.1
PEiD Signatures PE32 executable (GUI) Intel 80386, for MS Windows
Digital Signature Chain verification from CN=Stream Synergy Inc., O=Stream Synergy Inc., L=Markham, ST=Ontario, C=CA, 2.5.4.5=1300793-6, 1.3.6.1.4.1.311.60.2.1.3=CA, 2.5.4.15=Private Organization (serial:17740561339204704137440454187752085813, sha1:53675561cf0f4557a4641203edcb4e08d691c40a) failed: The path could not be validated because the end-entity certificate expired 2022-06-02 23:59:59Z
Imports 7 libraries
kernel32, ADVAPI32, SHELL32, ole32, COMCTL32, USER32, GDI32
Exports 0 functions
Resources 14 Resources
Sections 8 Sections

Version Information

▼
CompanyName
FileDescription WeatherZero
FileVersion 3.0.1.5
LegalCopyright WeatherZero
ProductName WeatherZero
Translation 0x0409 0x04b0

PE Sections

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Name Virtual Address Virtual Size Raw Size Entropy Characteristics MD5
0x00001000 28,187 bytes 18,944 bytes 7.97 (Packed/Encrypted) IMAGE_SCN_CNT_CODE|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ 6D115957834AA407383AFA5EB454C474
0x00008000 6,152 bytes 1,536 bytes 7.32 (Compressed) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ 69E57A5D1C343EA1A31C7DA053E37F93
0x0000a000 130,816 bytes 512 bytes 6.51 (Compressed) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE C916C21709353C253B2F641A2A569ADB
.ndata 0x0002a000 249,856 bytes 0 bytes 0.00 (Normal) IMAGE_SCN_CNT_UNINITIALIZED_DATA|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE D41D8CD98F00B204E9800998ECF8427E
0x00067000 3,732,184 bytes 3,732,480 bytes 7.99 (Packed/Encrypted) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ 926E6E769F5DCF68FCAE643315CC445F
.idata 0x003f7000 4,096 bytes 512 bytes 3.14 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE CF7BF553387EA2ADFAC908ECEC56AD7F
.rsrc 0x003f8000 148,480 bytes 148,480 bytes 6.29 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ 9B15B3C03A9B21AE15460C91D9CF2EE2
.themida 0x0041d000 2,252,800 bytes 2,252,800 bytes 6.33 (Normal) IMAGE_SCN_CNT_CODE|IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE 7BEB2EC80BEF0A43272FA4C9274B2271
Entropy Analysis Alert

2 section(s) with high entropy (≥7.5) detected - possible packing/encryption

2 section(s) with elevated entropy (≥6.5) - possible compression

Resource Analysis

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Total Resources: 14 (147,682 bytes)
Resource Type Count Total Size Percentage
RT_ICON 11 146,040 bytes
98.9%
RT_GROUP_ICON 1 160 bytes
0.1%
RT_VERSION 1 484 bytes
0.3%
RT_MANIFEST 1 998 bytes
0.7%

Certificate Chain Analysis

▼
No Digital Signatures

This file is not digitally signed.

Security Implications:
  • Cannot verify the publisher's identity
  • Increased security risk when running this file
  • May trigger security warnings on some systems

⚠ This file either lacks a digital signature or the certificate chain could not be verified
Exercise caution when executing unsigned files from unknown sources

Certificate Verification Status

Chain verification from CN=Stream Synergy Inc., O=Stream Synergy Inc., L=Markham, ST=Ontario, C=CA, 2.5.4.5=1300793-6, 1.3.6.1.4.1.311.60.2.1.3=CA, 2.5.4.15=Private Organization (serial:17740561339204704137440454187752085813, sha1:53675561cf0f4557a4641203edcb4e08d691c40a) failed: The path could not be validated because the end-entity certificate expired 2022-06-02 23:59:59Z

Recommendation: Verify the file source and ensure it comes from a trusted publisher.

Ransom.Win32.Wacatac.cld Removal

Gridinsoft has the capability to identify and eliminate Ransom.Win32.Wacatac.cld without requiring further user intervention.

Download Anti-Malware

Removal Instructions

Follow these steps to completely remove the threat from your system

  1. Start by downloading Gridinsoft Anti-Malware to your computer.
  2. Double-click on the gsam-en-install.exe file and follow the on-screen instructions to install the program.
  3. Once the installation of Gridinsoft Anti-Malware is complete, the program will open on the Scan screen.
  4. Click on the "Standard Scan" button to begin scanning your computer for threats.
  5. After the scanning process is finished, click on "Clean Now" to remove any detected threats.
  6. If prompted, restart your system to complete the removal process and ensure all threats are eliminated.
Important: Before You Start
Disconnect from the internet to prevent the malware from spreading or downloading additional threats. Run the scan in Safe Mode for better detection and removal of persistent threats.

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