Analysis

  • max time kernel
    144s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-12-2023 19:36

General

  • Target

    8d1d78a3ed7da56ab5783ebcc5e7c0b22921179f3d124aa7511bb952d199ef2bexe.exe

  • Size

    639KB

  • MD5

    78cdd7631daa770440ea9fa871fd8d63

  • SHA1

    7a3e6d5992612d2f7b98d35f8ab2d96aa1950f61

  • SHA256

    8d1d78a3ed7da56ab5783ebcc5e7c0b22921179f3d124aa7511bb952d199ef2b

  • SHA512

    c915fe8ddc1e3b90d4e53ba30dd30336ef8a45843dff42413300c44ac0d67a82c92565efe9df2f8b8aeb59e15adc2942eeed7bec24292170236b9e4d704690f4

  • SSDEEP

    12288:jE0QaueH5qRILAmLngh9QDBSfKaPUD2vNkbMRYjWOx:jE4qRILAmmuAOD/bMvO

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6217230824:AAFCGEN5vk1xCq7NOzRdvuxKD2rS56-qo2g/

Signatures

  • AgentTesla

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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.

  • Looks up external IP address via web service 2 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8d1d78a3ed7da56ab5783ebcc5e7c0b22921179f3d124aa7511bb952d199ef2bexe.exe
    "C:\Users\Admin\AppData\Local\Temp\8d1d78a3ed7da56ab5783ebcc5e7c0b22921179f3d124aa7511bb952d199ef2bexe.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1696
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\8d1d78a3ed7da56ab5783ebcc5e7c0b22921179f3d124aa7511bb952d199ef2bexe.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2512
    • C:\Users\Admin\AppData\Local\Temp\8d1d78a3ed7da56ab5783ebcc5e7c0b22921179f3d124aa7511bb952d199ef2bexe.exe
      "C:\Users\Admin\AppData\Local\Temp\8d1d78a3ed7da56ab5783ebcc5e7c0b22921179f3d124aa7511bb952d199ef2bexe.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4484
  • C:\Windows\system32\rundll32.exe
    "C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe
    1⤵
      PID:2360
    • C:\Windows\System32\svchost.exe
      C:\Windows\System32\svchost.exe -k UnistackSvcGroup
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4552

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\8d1d78a3ed7da56ab5783ebcc5e7c0b22921179f3d124aa7511bb952d199ef2bexe.exe.log

      Filesize

      1KB

      MD5

      8ec831f3e3a3f77e4a7b9cd32b48384c

      SHA1

      d83f09fd87c5bd86e045873c231c14836e76a05c

      SHA256

      7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

      SHA512

      26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_z2npo1ep.d5e.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/1696-6-0x0000000005890000-0x00000000058AA000-memory.dmp

      Filesize

      104KB

    • memory/1696-3-0x00000000054C0000-0x0000000005552000-memory.dmp

      Filesize

      584KB

    • memory/1696-4-0x0000000005430000-0x0000000005440000-memory.dmp

      Filesize

      64KB

    • memory/1696-5-0x0000000005660000-0x000000000566A000-memory.dmp

      Filesize

      40KB

    • memory/1696-14-0x00000000752A0000-0x0000000075A50000-memory.dmp

      Filesize

      7.7MB

    • memory/1696-7-0x00000000058D0000-0x00000000058D8000-memory.dmp

      Filesize

      32KB

    • memory/1696-8-0x00000000059F0000-0x00000000059FA000-memory.dmp

      Filesize

      40KB

    • memory/1696-9-0x00000000069C0000-0x0000000006A3A000-memory.dmp

      Filesize

      488KB

    • memory/1696-10-0x0000000009140000-0x00000000091DC000-memory.dmp

      Filesize

      624KB

    • memory/1696-0-0x00000000752A0000-0x0000000075A50000-memory.dmp

      Filesize

      7.7MB

    • memory/1696-2-0x0000000005A70000-0x0000000006014000-memory.dmp

      Filesize

      5.6MB

    • memory/1696-1-0x0000000000A20000-0x0000000000AC4000-memory.dmp

      Filesize

      656KB

    • memory/2512-35-0x00000000062A0000-0x00000000062BE000-memory.dmp

      Filesize

      120KB

    • memory/2512-51-0x00000000074B0000-0x0000000007553000-memory.dmp

      Filesize

      652KB

    • memory/2512-18-0x00000000752A0000-0x0000000075A50000-memory.dmp

      Filesize

      7.7MB

    • memory/2512-64-0x00000000752A0000-0x0000000075A50000-memory.dmp

      Filesize

      7.7MB

    • memory/2512-61-0x00000000078E0000-0x00000000078E8000-memory.dmp

      Filesize

      32KB

    • memory/2512-21-0x0000000005060000-0x0000000005070000-memory.dmp

      Filesize

      64KB

    • memory/2512-20-0x00000000056A0000-0x0000000005CC8000-memory.dmp

      Filesize

      6.2MB

    • memory/2512-22-0x0000000005060000-0x0000000005070000-memory.dmp

      Filesize

      64KB

    • memory/2512-60-0x0000000007900000-0x000000000791A000-memory.dmp

      Filesize

      104KB

    • memory/2512-23-0x0000000005500000-0x0000000005522000-memory.dmp

      Filesize

      136KB

    • memory/2512-33-0x0000000005CD0000-0x0000000005D36000-memory.dmp

      Filesize

      408KB

    • memory/2512-34-0x0000000005E20000-0x0000000006174000-memory.dmp

      Filesize

      3.3MB

    • memory/2512-59-0x0000000007800000-0x0000000007814000-memory.dmp

      Filesize

      80KB

    • memory/2512-36-0x00000000062E0000-0x000000000632C000-memory.dmp

      Filesize

      304KB

    • memory/2512-37-0x0000000005060000-0x0000000005070000-memory.dmp

      Filesize

      64KB

    • memory/2512-38-0x000000007EE40000-0x000000007EE50000-memory.dmp

      Filesize

      64KB

    • memory/2512-39-0x0000000006890000-0x00000000068C2000-memory.dmp

      Filesize

      200KB

    • memory/2512-40-0x0000000070F20000-0x0000000070F6C000-memory.dmp

      Filesize

      304KB

    • memory/2512-50-0x0000000006850000-0x000000000686E000-memory.dmp

      Filesize

      120KB

    • memory/2512-16-0x0000000002990000-0x00000000029C6000-memory.dmp

      Filesize

      216KB

    • memory/2512-58-0x00000000077F0000-0x00000000077FE000-memory.dmp

      Filesize

      56KB

    • memory/2512-53-0x0000000007C00000-0x000000000827A000-memory.dmp

      Filesize

      6.5MB

    • memory/2512-54-0x00000000075C0000-0x00000000075DA000-memory.dmp

      Filesize

      104KB

    • memory/2512-55-0x0000000007630000-0x000000000763A000-memory.dmp

      Filesize

      40KB

    • memory/2512-56-0x0000000007840000-0x00000000078D6000-memory.dmp

      Filesize

      600KB

    • memory/2512-57-0x00000000077C0000-0x00000000077D1000-memory.dmp

      Filesize

      68KB

    • memory/4484-66-0x0000000005670000-0x0000000005680000-memory.dmp

      Filesize

      64KB

    • memory/4484-11-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/4484-15-0x00000000752A0000-0x0000000075A50000-memory.dmp

      Filesize

      7.7MB

    • memory/4484-19-0x0000000005670000-0x0000000005680000-memory.dmp

      Filesize

      64KB

    • memory/4484-17-0x0000000005680000-0x00000000056E6000-memory.dmp

      Filesize

      408KB

    • memory/4484-65-0x00000000752A0000-0x0000000075A50000-memory.dmp

      Filesize

      7.7MB

    • memory/4484-52-0x0000000006E50000-0x0000000006EA0000-memory.dmp

      Filesize

      320KB

    • memory/4552-67-0x000001ECC4940000-0x000001ECC4950000-memory.dmp

      Filesize

      64KB

    • memory/4552-83-0x000001ECC4A40000-0x000001ECC4A50000-memory.dmp

      Filesize

      64KB

    • memory/4552-99-0x000001ECCCD30000-0x000001ECCCD31000-memory.dmp

      Filesize

      4KB

    • memory/4552-101-0x000001ECCCD60000-0x000001ECCCD61000-memory.dmp

      Filesize

      4KB

    • memory/4552-102-0x000001ECCCD60000-0x000001ECCCD61000-memory.dmp

      Filesize

      4KB

    • memory/4552-103-0x000001ECCCE70000-0x000001ECCCE71000-memory.dmp

      Filesize

      4KB