Analysis

  • max time kernel
    122s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    08-12-2023 02:34

General

  • Target

    8c208bd1e64d961dc972c12d8736c7b5e2f532003fc8563c021e85a60f944833.exe

  • Size

    843KB

  • MD5

    2d3733aa2dcf9beccb8e64c5ed45ef86

  • SHA1

    3735d31f58789144b4f2c819e9cc33b7c863b083

  • SHA256

    8c208bd1e64d961dc972c12d8736c7b5e2f532003fc8563c021e85a60f944833

  • SHA512

    87ccca3c4b7f33f7a4a95951d2e730a95cb4f3cf1ff86197a93175eda1eed57130283df5d299c29ceba633e5c4042c37ea01ca537888f5b6f47937e039a96a25

  • SSDEEP

    12288:hfYNr4RaVxP45+po21SMs3KSA6lTCnBjDPbQYAxIUpu7b1h2Hzq:UVk+pJsMsKSA6BCnBzwIrPQz

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6547287693:AAGGgrnDvtLiSnFJxDycaluud9osnQGIN1E/

Signatures

  • AgentTesla

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

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8c208bd1e64d961dc972c12d8736c7b5e2f532003fc8563c021e85a60f944833.exe
    "C:\Users\Admin\AppData\Local\Temp\8c208bd1e64d961dc972c12d8736c7b5e2f532003fc8563c021e85a60f944833.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2108
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\wNzBruiPc.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1668
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wNzBruiPc" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4A0B.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1976
    • C:\Users\Admin\AppData\Local\Temp\8c208bd1e64d961dc972c12d8736c7b5e2f532003fc8563c021e85a60f944833.exe
      "C:\Users\Admin\AppData\Local\Temp\8c208bd1e64d961dc972c12d8736c7b5e2f532003fc8563c021e85a60f944833.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:2664

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp4A0B.tmp

    Filesize

    1KB

    MD5

    dbcdd161908a463fa5879106f761d176

    SHA1

    6fd6883d12ac9b08563d2b825848c11cf015a4ab

    SHA256

    bf162d54c7303ad43d259679d021222d560e69835f59cdb765b42ed23076c400

    SHA512

    6912509df86cdebb698d7ffcb7e497377cc92aa6de281e9ee5902a2539c27aa73055ce28b53b817b27c2a86e7e8448e9dded7fb8c732a92c52e5028dec5f1c91

  • memory/1668-33-0x000000006E320000-0x000000006E8CB000-memory.dmp

    Filesize

    5.7MB

  • memory/1668-32-0x0000000002910000-0x0000000002950000-memory.dmp

    Filesize

    256KB

  • memory/1668-29-0x0000000002910000-0x0000000002950000-memory.dmp

    Filesize

    256KB

  • memory/1668-28-0x000000006E320000-0x000000006E8CB000-memory.dmp

    Filesize

    5.7MB

  • memory/1668-27-0x000000006E320000-0x000000006E8CB000-memory.dmp

    Filesize

    5.7MB

  • memory/2108-6-0x0000000005C10000-0x0000000005C8E000-memory.dmp

    Filesize

    504KB

  • memory/2108-26-0x0000000074520000-0x0000000074C0E000-memory.dmp

    Filesize

    6.9MB

  • memory/2108-0-0x0000000001280000-0x0000000001358000-memory.dmp

    Filesize

    864KB

  • memory/2108-2-0x0000000004D00000-0x0000000004D40000-memory.dmp

    Filesize

    256KB

  • memory/2108-3-0x0000000000560000-0x0000000000578000-memory.dmp

    Filesize

    96KB

  • memory/2108-1-0x0000000074520000-0x0000000074C0E000-memory.dmp

    Filesize

    6.9MB

  • memory/2108-4-0x0000000000450000-0x0000000000458000-memory.dmp

    Filesize

    32KB

  • memory/2108-5-0x00000000005C0000-0x00000000005CA000-memory.dmp

    Filesize

    40KB

  • memory/2664-18-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2664-25-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2664-23-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2664-21-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2664-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2664-16-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2664-30-0x00000000010F0000-0x0000000001130000-memory.dmp

    Filesize

    256KB

  • memory/2664-31-0x0000000074520000-0x0000000074C0E000-memory.dmp

    Filesize

    6.9MB

  • memory/2664-15-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2664-14-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2664-34-0x00000000010F0000-0x0000000001130000-memory.dmp

    Filesize

    256KB

  • memory/2664-35-0x0000000074520000-0x0000000074C0E000-memory.dmp

    Filesize

    6.9MB