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Analysis

  • max time kernel
    63s
  • max time network
    61s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    26/05/2023, 18:09

General

  • Target

    PO451033201.exe

  • Size

    682KB

  • MD5

    b8fcfd276053dd90813c19413a9710f8

  • SHA1

    056da263b91468fbb92ca4fe65df474d01ee5725

  • SHA256

    577593e5d16e4c0439339d4345505db0eb1595670ebdb271feaeaab510fd8b56

  • SHA512

    ef997362df0697f700d96cdceab857417e06f1b5547260d55893ac5545a736356b123b9eff45eccec1a5cdb1488a47a1e606f79c4f41cd3d28621f2a4c5eb190

  • SSDEEP

    12288:nK37z5GoJiGaq5auy+mHDgZSq/TAWzFJqJugzzjQyENH6N:q5GoR5aj+mHUZSq/NYvOgN

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6277498666:AAH4URlmeSysUKKZG20OTvrve55BRMLEu_o/

Signatures

  • AgentTesla

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

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO451033201.exe
    "C:\Users\Admin\AppData\Local\Temp\PO451033201.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2040
    • C:\Users\Admin\AppData\Local\Temp\PO451033201.exe
      "C:\Users\Admin\AppData\Local\Temp\PO451033201.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:868

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/868-66-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/868-68-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/868-72-0x00000000050A0000-0x00000000050E0000-memory.dmp

    Filesize

    256KB

  • memory/868-71-0x00000000050A0000-0x00000000050E0000-memory.dmp

    Filesize

    256KB

  • memory/868-70-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/868-64-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/868-65-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/868-61-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/868-62-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/868-63-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2040-55-0x0000000000570000-0x00000000005B0000-memory.dmp

    Filesize

    256KB

  • memory/2040-60-0x0000000004780000-0x00000000047B2000-memory.dmp

    Filesize

    200KB

  • memory/2040-54-0x0000000000E80000-0x0000000000F30000-memory.dmp

    Filesize

    704KB

  • memory/2040-59-0x0000000007F30000-0x0000000007F9A000-memory.dmp

    Filesize

    424KB

  • memory/2040-58-0x0000000000560000-0x000000000056A000-memory.dmp

    Filesize

    40KB

  • memory/2040-57-0x0000000000570000-0x00000000005B0000-memory.dmp

    Filesize

    256KB

  • memory/2040-56-0x0000000000550000-0x0000000000560000-memory.dmp

    Filesize

    64KB