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ExpIorer.exe Trojan Wacatac Analysis

Updated 2 months ago
Checked by Malware Check
expIorer.exe

Technical Analysis

File Name expIorer.exe
File Type
PE32+ executable (GUI) x86-64 Mono/.Net assembly, for MS Windows
Scanner Version 1.0.228.174
Database Version 2025-11-04 05:00:26 UTC
⚠

Ransom.Win64.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
1,249,960
File Size (bytes)
2025-11-04
Analysis Date

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File Identification

Hash Type Value Action
MD5
39b7ea21a9dcd2fcea8473524b896209
SHA1
591499e3881454e85a2387956601b90e9a50a852
SHA256
21523891c5645a54d0085f00c2cd29d3f44a529a01a3571eff6e1b8c61d53c9f
SHA512
7f8eaf0aa01db9cb91f62ebf3f0907bad4fec36259517f74d0a5a714b89d15dfa8629eda003ea5200369d30bf8a603e1f9a504c73f30d279869f970774e0cf6a

PE Analysis

Basic Information

▼
Icon
Hash: 054d27c12e5fc662adbb2922864d16d1
Fuzzy: 000e7642757662cbf4aaefc248b970c8
dHash: 6464e4fcbcbcb4e5
Image Base 0x140000000
Entry Point 0x140000000
Compilation Time 2043-01-18 09:32:01
Checksum 0x00000000 (Actual: 0x00138a39)
OS Version 4.0
PEiD Signatures PE32+ executable (GUI) x86-64 Mono/.Net assembly, for MS Windows
Digital Signature The expected hash does not match the digest in SpcInfo
Imports 0
Exports 0 functions
Resources 11 Resources
Sections 2 Sections

Version Information

▼
Translation 0x0000 0x04b0
Comments Windows Explorer
CompanyName Microsoft Corporation
FileDescription Windows Explorer
FileVersion 10.0.19041.1741
InternalName Rpsjhbq.exe
LegalCopyright © Microsoft Corporation. All rights reserved.
LegalTrademarks
OriginalFilename Rpsjhbq.exe
ProductName Microsoft® Windows® Operating System
ProductVersion 10.0.19041.1741
Assembly Version 10.0.19041.1741

PE Sections

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Name Virtual Address Virtual Size Raw Size Entropy Characteristics MD5
.text 0x00002000 1,180,320 bytes 1,180,672 bytes 7.60 (Packed/Encrypted) IMAGE_SCN_CNT_CODE|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ 6A40A0E829782C4B29F7B0970EB1301A
.rsrc 0x00124000 61,128 bytes 61,440 bytes 5.65 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ 458BE8F5D59AD4414D78CC13237A2616
Entropy Analysis Alert

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

Resource Analysis

▼
Total Resources: 11 (60,479 bytes)
Resource Type Count Total Size Percentage
RT_ICON 8 58,835 bytes
97.3%
RT_GROUP_ICON 1 118 bytes
0.2%
RT_VERSION 1 1,036 bytes
1.7%
RT_MANIFEST 1 490 bytes
0.8%

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

The expected hash does not match the digest in SpcInfo

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

Ransom.Win64.Wacatac.cld Removal

Gridinsoft has the capability to identify and eliminate Ransom.Win64.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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