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Analysis

  • max time kernel
    118s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    07/03/2024, 04:06

General

  • Target

    45bdc1b6250045529b8332c7fcca84f7215c66de929b2ae7a10be86fee2924c5.exe

  • Size

    853KB

  • MD5

    c162b87e2f415151fa28e048cf2a8220

  • SHA1

    248f95128d6674226914dfb2a0f4514e226ed9d2

  • SHA256

    45bdc1b6250045529b8332c7fcca84f7215c66de929b2ae7a10be86fee2924c5

  • SHA512

    1c2833fdfccbc4e52786d4e33f803a1837eacf6e539f8bead72dc52a904899f78874fa203eddb9d3c6140f491a258788fffc2312b478ad5d5b08bee190560664

  • SSDEEP

    12288:2YB5sUhEeyrXkywFCFiLPzW+Haa4TFR6hxt5snXRrGnO:bRYUxF94aUD6hsBrGO

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.

  • 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 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\45bdc1b6250045529b8332c7fcca84f7215c66de929b2ae7a10be86fee2924c5.exe
    "C:\Users\Admin\AppData\Local\Temp\45bdc1b6250045529b8332c7fcca84f7215c66de929b2ae7a10be86fee2924c5.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2908
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ZlyWrpwgnJmU.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2544
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZlyWrpwgnJmU" /XML "C:\Users\Admin\AppData\Local\Temp\tmp650A.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2524
    • C:\Users\Admin\AppData\Local\Temp\45bdc1b6250045529b8332c7fcca84f7215c66de929b2ae7a10be86fee2924c5.exe
      "C:\Users\Admin\AppData\Local\Temp\45bdc1b6250045529b8332c7fcca84f7215c66de929b2ae7a10be86fee2924c5.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2764

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp650A.tmp

    Filesize

    1KB

    MD5

    092a64c48a1fbadf32d8bc95fae96214

    SHA1

    743746523ea99a6fd863d7050f2735bdc40ee11a

    SHA256

    3205a1187806c07c85efae6f3e75d98664d1a42f10a5f842c298121a89b5d9a4

    SHA512

    a0ca0e6d46b17df7b5acb608298dca606a4e708c6f5896adef20871f143429386df0a5ef7acbc47da1f8d034289b8dac6afc040b8845fdd58b24ac160f9538e2

  • memory/2544-33-0x000000006E4D0000-0x000000006EA7B000-memory.dmp

    Filesize

    5.7MB

  • memory/2544-30-0x00000000029E0000-0x0000000002A20000-memory.dmp

    Filesize

    256KB

  • memory/2544-32-0x00000000029E0000-0x0000000002A20000-memory.dmp

    Filesize

    256KB

  • memory/2544-31-0x000000006E4D0000-0x000000006EA7B000-memory.dmp

    Filesize

    5.7MB

  • memory/2544-29-0x000000006E4D0000-0x000000006EA7B000-memory.dmp

    Filesize

    5.7MB

  • memory/2764-28-0x0000000074050000-0x000000007473E000-memory.dmp

    Filesize

    6.9MB

  • memory/2764-23-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2764-12-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2764-13-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2764-14-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2764-15-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2764-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2764-19-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2764-21-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2764-36-0x0000000074050000-0x000000007473E000-memory.dmp

    Filesize

    6.9MB

  • memory/2764-35-0x00000000048F0000-0x0000000004930000-memory.dmp

    Filesize

    256KB

  • memory/2764-27-0x00000000048F0000-0x0000000004930000-memory.dmp

    Filesize

    256KB

  • memory/2908-0-0x0000000000AB0000-0x0000000000B8C000-memory.dmp

    Filesize

    880KB

  • memory/2908-5-0x0000000000860000-0x000000000086E000-memory.dmp

    Filesize

    56KB

  • memory/2908-4-0x0000000000850000-0x000000000085A000-memory.dmp

    Filesize

    40KB

  • memory/2908-3-0x00000000006D0000-0x00000000006E4000-memory.dmp

    Filesize

    80KB

  • memory/2908-2-0x0000000004D70000-0x0000000004DB0000-memory.dmp

    Filesize

    256KB

  • memory/2908-1-0x0000000074050000-0x000000007473E000-memory.dmp

    Filesize

    6.9MB

  • memory/2908-26-0x0000000074050000-0x000000007473E000-memory.dmp

    Filesize

    6.9MB

  • memory/2908-6-0x0000000004DB0000-0x0000000004E32000-memory.dmp

    Filesize

    520KB