Analysis

  • max time kernel
    120s
  • max time network
    136s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    22-05-2024 16:57

General

  • Target

    f0e352c3fbf73706c4c0fd2e118cf10b241dd880b58ceb67491b585fa5719fad.exe

  • Size

    768KB

  • MD5

    aa2e0331db7bdc7c4a51a4d9ca2f4832

  • SHA1

    fc6ee67838401e8cbcef4e2c547d06cb56f12628

  • SHA256

    f0e352c3fbf73706c4c0fd2e118cf10b241dd880b58ceb67491b585fa5719fad

  • SHA512

    42c7e114bd9fa67301724481c893bfaa95ec633b53328d157b95e26fe6c4ca29e29cbda5ac0bcc73577865d18d4c3875fc2c08f6747f4ec926868e41c20957c3

  • SSDEEP

    12288:+IeWET/mr9K+22BEEzFatnhghS5+v+DUVNf5MWl0axTbo+i1Cv7z2CjH8mri7jY3:OWtb3BEMhS5qOk5SVC+CjcmWg

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.deblokhoeve.be
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Blokhoeve2490.i

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 1 IoCs

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

  • 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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).

  • 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f0e352c3fbf73706c4c0fd2e118cf10b241dd880b58ceb67491b585fa5719fad.exe
    "C:\Users\Admin\AppData\Local\Temp\f0e352c3fbf73706c4c0fd2e118cf10b241dd880b58ceb67491b585fa5719fad.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1440
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\saPiRlsccSHapA.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2692
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\saPiRlsccSHapA" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE908.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2644
    • C:\Users\Admin\AppData\Local\Temp\f0e352c3fbf73706c4c0fd2e118cf10b241dd880b58ceb67491b585fa5719fad.exe
      "C:\Users\Admin\AppData\Local\Temp\f0e352c3fbf73706c4c0fd2e118cf10b241dd880b58ceb67491b585fa5719fad.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2680

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

    Filesize

    68KB

    MD5

    29f65ba8e88c063813cc50a4ea544e93

    SHA1

    05a7040d5c127e68c25d81cc51271ffb8bef3568

    SHA256

    1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

    SHA512

    e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

  • C:\Users\Admin\AppData\Local\Temp\TarCF3.tmp

    Filesize

    177KB

    MD5

    435a9ac180383f9fa094131b173a2f7b

    SHA1

    76944ea657a9db94f9a4bef38f88c46ed4166983

    SHA256

    67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

    SHA512

    1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

  • C:\Users\Admin\AppData\Local\Temp\tmpE908.tmp

    Filesize

    1KB

    MD5

    ec7996de2acdbebd68c53df566b6d793

    SHA1

    8e0530f8308d0d6a63a6aab3c08b9ced69b4393f

    SHA256

    63ec2a58f922ea161c10abe284b68be8cd6c47882a3c06beed27f3674b68c1db

    SHA512

    04701c67334eb865c607d1c563a44ad04a4ebacace7c536f31866a37642b9805679d8157c0c378bffef7d6103cd99184443869b57914231fdbe40d83bf523f70

  • memory/1440-25-0x0000000074050000-0x000000007473E000-memory.dmp

    Filesize

    6.9MB

  • memory/1440-1-0x00000000012B0000-0x0000000001376000-memory.dmp

    Filesize

    792KB

  • memory/1440-2-0x0000000074050000-0x000000007473E000-memory.dmp

    Filesize

    6.9MB

  • memory/1440-3-0x0000000000610000-0x0000000000632000-memory.dmp

    Filesize

    136KB

  • memory/1440-4-0x00000000004D0000-0x00000000004DC000-memory.dmp

    Filesize

    48KB

  • memory/1440-5-0x00000000004F0000-0x0000000000500000-memory.dmp

    Filesize

    64KB

  • memory/1440-6-0x0000000000510000-0x0000000000596000-memory.dmp

    Filesize

    536KB

  • memory/1440-7-0x000000007405E000-0x000000007405F000-memory.dmp

    Filesize

    4KB

  • memory/1440-0-0x000000007405E000-0x000000007405F000-memory.dmp

    Filesize

    4KB

  • memory/2680-23-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2680-22-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2680-19-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2680-17-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2680-13-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2680-15-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2680-26-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2680-21-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB