Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-06-2024 01:39

General

  • Target

    7b3b27a5939919582d1c712df7e9a1792c22bebabb3f393d6681b0712e226a6b.exe

  • Size

    2.7MB

  • MD5

    a2dc840cdaebca556e71e98efc9673bd

  • SHA1

    0f3adcf5a3a11852637d4c5b8bd1fae5969384f4

  • SHA256

    7b3b27a5939919582d1c712df7e9a1792c22bebabb3f393d6681b0712e226a6b

  • SHA512

    6b07bae8865d31c569cbdbca07e9993a5d3db4e5a9bf645f8c67867825a6afc8d838cf1b9e93905032d4298ab875dbee89b116b93b31353d997af73d4e771e41

  • SSDEEP

    12288:6sAripabvQCGxzxT/lYKFVGjcbfafuDkU70MuGsSm0qyGfmsmb:6sAOpkvQJyK9fYuj7JMrfmsk

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot7426366653:AAERgpeylo3lf--iVcYDsvLZ4C71qIFlyH4/

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
  • Detects executables packed with or use KoiVM 1 IoCs
  • Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs
  • Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7b3b27a5939919582d1c712df7e9a1792c22bebabb3f393d6681b0712e226a6b.exe
    "C:\Users\Admin\AppData\Local\Temp\7b3b27a5939919582d1c712df7e9a1792c22bebabb3f393d6681b0712e226a6b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2956
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4956

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2956-9-0x00007FFD8DD60000-0x00007FFD8E821000-memory.dmp

    Filesize

    10.8MB

  • memory/2956-0-0x00007FFD8DD63000-0x00007FFD8DD65000-memory.dmp

    Filesize

    8KB

  • memory/2956-2-0x00007FFD8DD60000-0x00007FFD8E821000-memory.dmp

    Filesize

    10.8MB

  • memory/2956-3-0x0000014CA41A0000-0x0000014CA4234000-memory.dmp

    Filesize

    592KB

  • memory/2956-1-0x0000014C887B0000-0x0000014C887D4000-memory.dmp

    Filesize

    144KB

  • memory/4956-8-0x0000000074690000-0x0000000074E40000-memory.dmp

    Filesize

    7.7MB

  • memory/4956-5-0x000000007469E000-0x000000007469F000-memory.dmp

    Filesize

    4KB

  • memory/4956-7-0x0000000004ED0000-0x0000000004F36000-memory.dmp

    Filesize

    408KB

  • memory/4956-6-0x0000000005660000-0x0000000005C04000-memory.dmp

    Filesize

    5.6MB

  • memory/4956-4-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/4956-10-0x0000000005600000-0x0000000005650000-memory.dmp

    Filesize

    320KB

  • memory/4956-11-0x0000000005EB0000-0x0000000005F42000-memory.dmp

    Filesize

    584KB

  • memory/4956-12-0x0000000005E40000-0x0000000005E4A000-memory.dmp

    Filesize

    40KB

  • memory/4956-13-0x000000007469E000-0x000000007469F000-memory.dmp

    Filesize

    4KB

  • memory/4956-14-0x0000000074690000-0x0000000074E40000-memory.dmp

    Filesize

    7.7MB