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Cstealer.exe Trojan Agent Analysis

Updated 1 year ago
Checked by Malware Check
cstealer.exe

Technical Analysis

File Name cstealer.exe
File Type
PE32+ executable (GUI) x86-64, for MS Windows
Scanner Version 1.0.165.174
Database Version 2024-02-21 01:00:31 UTC
⚠

Trojan.Win64.Agent.oa!s1

Malware family: Agent

Trojan Agent malware disguises itself as legitimate software while performing unauthorized activities including data theft and providing remote system access to threat actors.
N/A
Detection Rate
20,456,624
File Size (bytes)
2024-02-21
Analysis Date

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File Identification

Hash Type Value Action
MD5
b481bba901fa525ea70d310523c63f34
SHA1
c4784d6f802099b85e0d8a0a44bbe73f8a25f36f
SHA256
d10b05aa5ade083dbed5a78cc8819d7b748350bb79ea658d53d5f177cfe5216c
SHA512
e28a6e6abafe13c44e579ebf92be628462eb1e19acea0f4c01a2df0bb91f8706c663a809c7a1f2aae289c4902e5387a0f5ac0313ff125c8a136581593258ccf6
ImpHash
1af6c885af093afc55142c2f1761dbe8

PE Analysis

Basic Information

▼
Icon
Hash: 99f8909119f22355b3423d4cad169539
Fuzzy: c5a2ab820da81f9db77abd76bbd9764e
dHash: c6c2ccc4f4e0e0f8
Image Base 0x140000000
Entry Point 0x14000c2f0
Compilation Time 2024-02-20 23:51:15
Checksum 0x01391948 (Actual: 0x01391948)
OS Version 5.2
PEiD Signatures PE32+ executable (GUI) x86-64, for MS Windows
Digital Signature The PE file does not contain a certificate table.
Imports 5 libraries
USER32, COMCTL32, KERNEL32, ADVAPI32, GDI32
Exports 0 functions
Resources 9 Resources
Sections 7 Sections

PE Sections

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Name Virtual Address Virtual Size Raw Size Entropy Characteristics MD5
.text 0x00001000 171,408 bytes 171,520 bytes 6.49 (Normal) IMAGE_SCN_CNT_CODE|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ 15C814A42215E290D8BAB54E3DB4F28E
.rdata 0x0002b000 77,068 bytes 77,312 bytes 5.82 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ 22B8C51D9C8CF69B12BA08694CC0C51B
.data 0x0003e000 13,128 bytes 3,584 bytes 1.82 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE E1F21CABB4E5E084C6E11E610D715023
.pdata 0x00042000 8,904 bytes 9,216 bytes 5.33 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ B142DE92A6283807FF34839C180F053C
_RDATA 0x00045000 348 bytes 512 bytes 2.83 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ EE29821D11E5DD21C3E807A502FA5813
.rsrc 0x00046000 62,492 bytes 62,976 bytes 7.55 (Packed/Encrypted) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ C654AB5A3BC06EBF8C554F36C31153C0
.reloc 0x00056000 1,880 bytes 2,048 bytes 5.24 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_DISCARDABLE|IMAGE_SCN_MEM_READ 7813F7270F60606010808EAA88AEE14B
Entropy Analysis Alert

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

Resource Analysis

▼
Total Resources: 9 (61,969 bytes)
Resource Type Count Total Size Percentage
RT_ICON 7 60,572 bytes
97.7%
RT_GROUP_ICON 1 104 bytes
0.2%
RT_MANIFEST 1 1,293 bytes
2.1%

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 PE file does not contain a certificate table.

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

Trojan.Win64.Agent.oa!s1 Removal

Gridinsoft has the capability to identify and eliminate Trojan.Win64.Agent.oa!s1 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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