Analysis

  • max time kernel
    143s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-02-2024 03:10

General

  • Target

    4f86439a425e3980a2c4c6a7133161f441d3c8338d226eff67b84b180d659ec7.exe

  • Size

    790KB

  • MD5

    4a8534b3579fc2e0b3903dec85a38f12

  • SHA1

    2506a0a6a2303e53e400de74c21474440e563e3b

  • SHA256

    4f86439a425e3980a2c4c6a7133161f441d3c8338d226eff67b84b180d659ec7

  • SHA512

    08f3c76cb933735f78fe248675919d1e4a0be54030c3d810f737a2d9d8317b378656508d13e2a1b7319a212fa29a0309b85aa23f018fd419e2dceb518821a697

  • SSDEEP

    24576:fs3ZPyRt9g4hxWR1HJSKSta5V0CJxJUinq3:fsJ6RtugxWR1H4c5XJUinq

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.elektronikkutu.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    9U:e3@wpS3:U7h_V

Extracted

Family

agenttesla

Credentials

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 binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 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
  • 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 1 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).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 18 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4f86439a425e3980a2c4c6a7133161f441d3c8338d226eff67b84b180d659ec7.exe
    "C:\Users\Admin\AppData\Local\Temp\4f86439a425e3980a2c4c6a7133161f441d3c8338d226eff67b84b180d659ec7.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3380
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\PSTnEcHsBeaZp.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2872
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\PSTnEcHsBeaZp" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAE8.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1420
    • C:\Users\Admin\AppData\Local\Temp\4f86439a425e3980a2c4c6a7133161f441d3c8338d226eff67b84b180d659ec7.exe
      "C:\Users\Admin\AppData\Local\Temp\4f86439a425e3980a2c4c6a7133161f441d3c8338d226eff67b84b180d659ec7.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:3264

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\4f86439a425e3980a2c4c6a7133161f441d3c8338d226eff67b84b180d659ec7.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mxq041zs.bn1.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpAE8.tmp

    Filesize

    1KB

    MD5

    8247e222cc6046df4a02d01fb95e5414

    SHA1

    9490f2be3783648209d0de861ba98195ed2e72c7

    SHA256

    0eb09c7937b1612cfac6203d12703ded6005d0e2d84eedab15c5bab17045a45d

    SHA512

    6efd8236b69e64cb88c6b9b24fdc588f8343672571e927b27128a55f2fdda41754f0c4f9733f050f3cf6e17884d148f3af8f2564ffbf2260d0776756355acec0

  • memory/2872-58-0x0000000007860000-0x000000000787A000-memory.dmp

    Filesize

    104KB

  • memory/2872-59-0x00000000078D0000-0x00000000078DA000-memory.dmp

    Filesize

    40KB

  • memory/2872-69-0x0000000074FA0000-0x0000000075750000-memory.dmp

    Filesize

    7.7MB

  • memory/2872-66-0x0000000007B80000-0x0000000007B88000-memory.dmp

    Filesize

    32KB

  • memory/2872-65-0x0000000007BA0000-0x0000000007BBA000-memory.dmp

    Filesize

    104KB

  • memory/2872-64-0x0000000007AA0000-0x0000000007AB4000-memory.dmp

    Filesize

    80KB

  • memory/2872-63-0x0000000007A90000-0x0000000007A9E000-memory.dmp

    Filesize

    56KB

  • memory/2872-62-0x0000000007A60000-0x0000000007A71000-memory.dmp

    Filesize

    68KB

  • memory/2872-61-0x0000000007AE0000-0x0000000007B76000-memory.dmp

    Filesize

    600KB

  • memory/2872-57-0x0000000007EA0000-0x000000000851A000-memory.dmp

    Filesize

    6.5MB

  • memory/2872-17-0x0000000002BC0000-0x0000000002BF6000-memory.dmp

    Filesize

    216KB

  • memory/2872-18-0x0000000074FA0000-0x0000000075750000-memory.dmp

    Filesize

    7.7MB

  • memory/2872-19-0x0000000002BB0000-0x0000000002BC0000-memory.dmp

    Filesize

    64KB

  • memory/2872-56-0x0000000007760000-0x0000000007803000-memory.dmp

    Filesize

    652KB

  • memory/2872-21-0x00000000055A0000-0x0000000005BC8000-memory.dmp

    Filesize

    6.2MB

  • memory/2872-55-0x0000000006AF0000-0x0000000006B0E000-memory.dmp

    Filesize

    120KB

  • memory/2872-45-0x0000000070CC0000-0x0000000070D0C000-memory.dmp

    Filesize

    304KB

  • memory/2872-36-0x0000000005EA0000-0x00000000061F4000-memory.dmp

    Filesize

    3.3MB

  • memory/2872-27-0x0000000005BD0000-0x0000000005C36000-memory.dmp

    Filesize

    408KB

  • memory/2872-29-0x0000000005E30000-0x0000000005E96000-memory.dmp

    Filesize

    408KB

  • memory/2872-44-0x0000000007520000-0x0000000007552000-memory.dmp

    Filesize

    200KB

  • memory/2872-25-0x00000000053D0000-0x00000000053F2000-memory.dmp

    Filesize

    136KB

  • memory/2872-43-0x0000000002BB0000-0x0000000002BC0000-memory.dmp

    Filesize

    64KB

  • memory/2872-42-0x0000000006670000-0x00000000066BC000-memory.dmp

    Filesize

    304KB

  • memory/2872-41-0x0000000006550000-0x000000000656E000-memory.dmp

    Filesize

    120KB

  • memory/3264-70-0x0000000074FA0000-0x0000000075750000-memory.dmp

    Filesize

    7.7MB

  • memory/3264-71-0x0000000005040000-0x0000000005050000-memory.dmp

    Filesize

    64KB

  • memory/3264-30-0x0000000005040000-0x0000000005050000-memory.dmp

    Filesize

    64KB

  • memory/3264-60-0x00000000065C0000-0x0000000006610000-memory.dmp

    Filesize

    320KB

  • memory/3264-28-0x0000000074FA0000-0x0000000075750000-memory.dmp

    Filesize

    7.7MB

  • memory/3264-22-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/3380-26-0x0000000074FA0000-0x0000000075750000-memory.dmp

    Filesize

    7.7MB

  • memory/3380-9-0x00000000051E0000-0x00000000051EE000-memory.dmp

    Filesize

    56KB

  • memory/3380-0-0x0000000074FA0000-0x0000000075750000-memory.dmp

    Filesize

    7.7MB

  • memory/3380-3-0x0000000004B40000-0x0000000004BD2000-memory.dmp

    Filesize

    584KB

  • memory/3380-2-0x0000000005210000-0x00000000057B4000-memory.dmp

    Filesize

    5.6MB

  • memory/3380-6-0x0000000004E10000-0x0000000004EAC000-memory.dmp

    Filesize

    624KB

  • memory/3380-10-0x0000000007630000-0x00000000076B4000-memory.dmp

    Filesize

    528KB

  • memory/3380-12-0x0000000004E00000-0x0000000004E10000-memory.dmp

    Filesize

    64KB

  • memory/3380-8-0x00000000051D0000-0x00000000051DA000-memory.dmp

    Filesize

    40KB

  • memory/3380-7-0x0000000004DF0000-0x0000000004E04000-memory.dmp

    Filesize

    80KB

  • memory/3380-1-0x00000000000A0000-0x000000000016C000-memory.dmp

    Filesize

    816KB

  • memory/3380-5-0x0000000004C10000-0x0000000004C1A000-memory.dmp

    Filesize

    40KB

  • memory/3380-11-0x0000000074FA0000-0x0000000075750000-memory.dmp

    Filesize

    7.7MB

  • memory/3380-4-0x0000000004E00000-0x0000000004E10000-memory.dmp

    Filesize

    64KB