Analysis

  • max time kernel
    117s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-06-2024 01:42

General

  • Target

    ac257a5301ed129abca81bbb10ad8cce2d3d46663459d46ebbb54f0b30d3ace3.exe

  • Size

    705KB

  • MD5

    fc225e29dc7fc45a700476e1ec78084f

  • SHA1

    29eb09ffdbe967ea1a46c3fd31ff06c26fc3e7c7

  • SHA256

    ac257a5301ed129abca81bbb10ad8cce2d3d46663459d46ebbb54f0b30d3ace3

  • SHA512

    43881dc9387d302a065d488221f942104ab4ae18551015d029d647112fccf4181cadc8cc46762f7c36d4cbb44ae988714ae7fbc3e066c8ef3d875aef6a84e1d8

  • SSDEEP

    12288:BMlKt/rFfaz9XjB1hCpmUthz5dZGGvt+U9NX0HFO2d46wspwm:UKN5iRzBTCUMl6et+qNXSX46wspX

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.appar.cam
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    =wEIfelBf=J7

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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
  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ac257a5301ed129abca81bbb10ad8cce2d3d46663459d46ebbb54f0b30d3ace3.exe
    "C:\Users\Admin\AppData\Local\Temp\ac257a5301ed129abca81bbb10ad8cce2d3d46663459d46ebbb54f0b30d3ace3.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2096
    • 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\ac257a5301ed129abca81bbb10ad8cce2d3d46663459d46ebbb54f0b30d3ace3.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4772
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\aycJWvDvs.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2352
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\aycJWvDvs" /XML "C:\Users\Admin\AppData\Local\Temp\tmp64B5.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:5052
    • C:\Users\Admin\AppData\Local\Temp\ac257a5301ed129abca81bbb10ad8cce2d3d46663459d46ebbb54f0b30d3ace3.exe
      "C:\Users\Admin\AppData\Local\Temp\ac257a5301ed129abca81bbb10ad8cce2d3d46663459d46ebbb54f0b30d3ace3.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4068

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    2KB

    MD5

    968cb9309758126772781b83adb8a28f

    SHA1

    8da30e71accf186b2ba11da1797cf67f8f78b47c

    SHA256

    92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

    SHA512

    4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_m1chsdjg.khi.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp64B5.tmp

    Filesize

    1KB

    MD5

    3c65280ac0a22655138ad204d01babbd

    SHA1

    6903705f4dae1eea8ee68822ab55ba26ddd161f6

    SHA256

    fc226cfb1598da3661873d53a37b5410ed6a42a5919b249b5924113545efdc46

    SHA512

    fbe095a20758d282dda872f30b2d6bc3d0b70140b19873609a407a836c74632ab316faeea6b8603f14a6b06b6941b2ac0fff5475c150cbfb87d8a03b398036ee

  • memory/2096-7-0x00000000060B0000-0x00000000060BE000-memory.dmp

    Filesize

    56KB

  • memory/2096-0-0x000000007502E000-0x000000007502F000-memory.dmp

    Filesize

    4KB

  • memory/2096-5-0x0000000075020000-0x00000000757D0000-memory.dmp

    Filesize

    7.7MB

  • memory/2096-6-0x0000000005050000-0x0000000005066000-memory.dmp

    Filesize

    88KB

  • memory/2096-37-0x0000000075020000-0x00000000757D0000-memory.dmp

    Filesize

    7.7MB

  • memory/2096-8-0x00000000060D0000-0x00000000060E0000-memory.dmp

    Filesize

    64KB

  • memory/2096-9-0x0000000006110000-0x0000000006194000-memory.dmp

    Filesize

    528KB

  • memory/2096-10-0x0000000006380000-0x000000000641C000-memory.dmp

    Filesize

    624KB

  • memory/2096-3-0x0000000004E40000-0x0000000004ED2000-memory.dmp

    Filesize

    584KB

  • memory/2096-4-0x0000000004EF0000-0x0000000004EFA000-memory.dmp

    Filesize

    40KB

  • memory/2096-1-0x0000000000390000-0x0000000000446000-memory.dmp

    Filesize

    728KB

  • memory/2096-2-0x00000000053F0000-0x0000000005994000-memory.dmp

    Filesize

    5.6MB

  • memory/2352-80-0x00000000072D0000-0x00000000072EA000-memory.dmp

    Filesize

    104KB

  • memory/2352-78-0x00000000071C0000-0x00000000071CE000-memory.dmp

    Filesize

    56KB

  • memory/2352-77-0x0000000007190000-0x00000000071A1000-memory.dmp

    Filesize

    68KB

  • memory/2352-76-0x0000000007210000-0x00000000072A6000-memory.dmp

    Filesize

    600KB

  • memory/2352-23-0x0000000075020000-0x00000000757D0000-memory.dmp

    Filesize

    7.7MB

  • memory/2352-75-0x0000000007000000-0x000000000700A000-memory.dmp

    Filesize

    40KB

  • memory/2352-79-0x00000000071D0000-0x00000000071E4000-memory.dmp

    Filesize

    80KB

  • memory/2352-86-0x0000000075020000-0x00000000757D0000-memory.dmp

    Filesize

    7.7MB

  • memory/2352-36-0x0000000075020000-0x00000000757D0000-memory.dmp

    Filesize

    7.7MB

  • memory/2352-52-0x00000000716C0000-0x000000007170C000-memory.dmp

    Filesize

    304KB

  • memory/2352-38-0x0000000075020000-0x00000000757D0000-memory.dmp

    Filesize

    7.7MB

  • memory/2352-74-0x0000000006F90000-0x0000000006FAA000-memory.dmp

    Filesize

    104KB

  • memory/2352-71-0x0000000006230000-0x000000000624E000-memory.dmp

    Filesize

    120KB

  • memory/4068-24-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/4068-87-0x0000000005D40000-0x0000000005D90000-memory.dmp

    Filesize

    320KB

  • memory/4772-22-0x00000000058A0000-0x0000000005906000-memory.dmp

    Filesize

    408KB

  • memory/4772-21-0x00000000051A0000-0x0000000005206000-memory.dmp

    Filesize

    408KB

  • memory/4772-50-0x0000000007170000-0x00000000071A2000-memory.dmp

    Filesize

    200KB

  • memory/4772-48-0x0000000005FC0000-0x0000000005FDE000-memory.dmp

    Filesize

    120KB

  • memory/4772-20-0x0000000005000000-0x0000000005022000-memory.dmp

    Filesize

    136KB

  • memory/4772-30-0x0000000005A10000-0x0000000005D64000-memory.dmp

    Filesize

    3.3MB

  • memory/4772-51-0x00000000716C0000-0x000000007170C000-memory.dmp

    Filesize

    304KB

  • memory/4772-72-0x00000000071B0000-0x0000000007253000-memory.dmp

    Filesize

    652KB

  • memory/4772-73-0x0000000007950000-0x0000000007FCA000-memory.dmp

    Filesize

    6.5MB

  • memory/4772-18-0x0000000075020000-0x00000000757D0000-memory.dmp

    Filesize

    7.7MB

  • memory/4772-17-0x0000000075020000-0x00000000757D0000-memory.dmp

    Filesize

    7.7MB

  • memory/4772-81-0x0000000007620000-0x0000000007628000-memory.dmp

    Filesize

    32KB

  • memory/4772-16-0x0000000005270000-0x0000000005898000-memory.dmp

    Filesize

    6.2MB

  • memory/4772-85-0x0000000075020000-0x00000000757D0000-memory.dmp

    Filesize

    7.7MB

  • memory/4772-15-0x00000000026B0000-0x00000000026E6000-memory.dmp

    Filesize

    216KB

  • memory/4772-49-0x0000000006510000-0x000000000655C000-memory.dmp

    Filesize

    304KB