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Analysis

  • max time kernel
    135s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/05/2023, 22:55

General

  • Target

    ohoyecaysj4799.exe

  • Size

    636KB

  • MD5

    0d8538ffcc2992e867d5da447af1bef6

  • SHA1

    be43896187e71eef6f463f407aca1007495c4628

  • SHA256

    f4e9e61847bf9d01a5249071cbe12827cdc1c5fdae59cbd2e11719c5dfde937c

  • SHA512

    35ee84b60aba711d7e0cc39c5866c0072a1ed091ed8925568da252b85f1a049004b66cccf48d9704a9a4173352bbfece216897e9d4491aa499dec9bd360e509b

  • SSDEEP

    12288:N2iNa9S9DnuFtiYs1PvvysZsBC85i7Du5sHqus0nIaA:N1I9iDuFtzAPvvM885KDu5sK0In

Malware Config

Extracted

Family

agenttesla

Credentials

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
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ohoyecaysj4799.exe
    "C:\Users\Admin\AppData\Local\Temp\ohoyecaysj4799.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4272
    • C:\Users\Admin\AppData\Local\Temp\ohoyecaysj4799.exe
      "C:\Users\Admin\AppData\Local\Temp\ohoyecaysj4799.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:224

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\ohoyecaysj4799.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/224-140-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/224-146-0x0000000005AB0000-0x0000000005AC0000-memory.dmp

    Filesize

    64KB

  • memory/224-145-0x0000000006C20000-0x0000000006C70000-memory.dmp

    Filesize

    320KB

  • memory/224-144-0x0000000005AB0000-0x0000000005AC0000-memory.dmp

    Filesize

    64KB

  • memory/224-143-0x0000000005850000-0x00000000058B6000-memory.dmp

    Filesize

    408KB

  • memory/4272-136-0x00000000058E0000-0x00000000058EA000-memory.dmp

    Filesize

    40KB

  • memory/4272-139-0x0000000006880000-0x000000000691C000-memory.dmp

    Filesize

    624KB

  • memory/4272-138-0x00000000058B0000-0x00000000058C0000-memory.dmp

    Filesize

    64KB

  • memory/4272-137-0x00000000058B0000-0x00000000058C0000-memory.dmp

    Filesize

    64KB

  • memory/4272-133-0x0000000000C50000-0x0000000000CF6000-memory.dmp

    Filesize

    664KB

  • memory/4272-135-0x0000000005710000-0x00000000057A2000-memory.dmp

    Filesize

    584KB

  • memory/4272-134-0x0000000005CC0000-0x0000000006264000-memory.dmp

    Filesize

    5.6MB