Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    27-04-2024 01:33

General

  • Target

    8ceb3808dfe2433dddcde779deac4ac58a595175e09d1c8b6a47dbf7f327d16a.exe

  • Size

    652KB

  • MD5

    6d7798805db34d8c1dcc0321613c3410

  • SHA1

    e69a5cc833d2311316d9b5878f547d89d7184b0b

  • SHA256

    8ceb3808dfe2433dddcde779deac4ac58a595175e09d1c8b6a47dbf7f327d16a

  • SHA512

    40985368f31a7083a71184e066475291322c6651c224976325467a5668e7c884ad7c285d4c6a531d8132fb7c58040fe5483d90032e994ad8a4dda9963dc5cf90

  • SSDEEP

    12288:zarUF9WMbbUs/dN28/r+uQJ9wsQXohP6qhPqrFzy3UytGzrI6tOeD6RZ:erU2M8s/d1T+uQ4EbhL3Zyli

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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 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\8ceb3808dfe2433dddcde779deac4ac58a595175e09d1c8b6a47dbf7f327d16a.exe
    "C:\Users\Admin\AppData\Local\Temp\8ceb3808dfe2433dddcde779deac4ac58a595175e09d1c8b6a47dbf7f327d16a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1540
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ISwOEfWsLu.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2144
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ISwOEfWsLu" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3312.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2964
    • C:\Users\Admin\AppData\Local\Temp\8ceb3808dfe2433dddcde779deac4ac58a595175e09d1c8b6a47dbf7f327d16a.exe
      "C:\Users\Admin\AppData\Local\Temp\8ceb3808dfe2433dddcde779deac4ac58a595175e09d1c8b6a47dbf7f327d16a.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2676

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

4
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp3312.tmp
    Filesize

    1KB

    MD5

    f9ee02f7092fd018d269cf2b4f057128

    SHA1

    6b199a7f7fbc82cb381de445e36c1faa7e5e8e2e

    SHA256

    e866ab7bcd9f6cd4b794a67e5cf91aabe68d53fd1fbb87d883d1f1ea17ce1700

    SHA512

    e4caae51562c7501b1d5a60031895a977068dcbf13596dd0c77e0c7e4e1e8167da08fed9e0a335274481d2e58bbb993c8cd01206d10a043f44b8bd9d84e7707a

  • memory/1540-27-0x0000000074E50000-0x000000007553E000-memory.dmp
    Filesize

    6.9MB

  • memory/1540-1-0x0000000074E50000-0x000000007553E000-memory.dmp
    Filesize

    6.9MB

  • memory/1540-2-0x0000000004AB0000-0x0000000004AF0000-memory.dmp
    Filesize

    256KB

  • memory/1540-3-0x0000000000440000-0x0000000000458000-memory.dmp
    Filesize

    96KB

  • memory/1540-4-0x0000000000420000-0x000000000042E000-memory.dmp
    Filesize

    56KB

  • memory/1540-5-0x0000000000460000-0x0000000000474000-memory.dmp
    Filesize

    80KB

  • memory/1540-6-0x0000000004F20000-0x0000000004FA2000-memory.dmp
    Filesize

    520KB

  • memory/1540-0-0x0000000000F40000-0x0000000000FEA000-memory.dmp
    Filesize

    680KB

  • memory/2676-14-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2676-24-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2676-23-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2676-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2676-20-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2676-18-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2676-16-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2676-26-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB