Analysis

  • max time kernel
    103s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-11-2022 06:37

General

  • Target

    PI#102087.exe

  • Size

    651KB

  • MD5

    505852f2cd67a14131d2d6e927d92889

  • SHA1

    a7062897a84533c30705eb6667d352c78a43b9f6

  • SHA256

    8e6fe812e3f4a19a51a0978e9c47e2cdb891f1feecb0a7ae2c1eff744c971371

  • SHA512

    49709821545b0fb4e7c12ebee2382258def6f5ad9025c91d1ce28bd02b961d8f7c0aed47d2d1a866d5636643d9f13e5a561c872e06e758af2f2f148180bd7585

  • SSDEEP

    12288:sFTYIvM3zrbETClyHskFgFwIyXCDmVRSmMSwOQkL7AiGSdrZOOP55U9smC7B4s:6dU376CoskFgqIyXxv/kiPpZFbU9smCr

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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). Likely ransomware behaviour.

  • 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PI#102087.exe
    "C:\Users\Admin\AppData\Local\Temp\PI#102087.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1164
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZqcivZeoGSZA" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFC61.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1004
    • C:\Users\Admin\AppData\Local\Temp\PI#102087.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:1048

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\PI#102087.exe.log

    Filesize

    1KB

    MD5

    84e77a587d94307c0ac1357eb4d3d46f

    SHA1

    83cc900f9401f43d181207d64c5adba7a85edc1e

    SHA256

    e16024b092a026a9dc00df69d4b9bbcab7b2dc178dc5291fc308a1abc9304a99

    SHA512

    aefb5c62200b3ed97718d20a89990954d4d8acdc0a6a73c5a420f1bba619cb79e70c2cd0a579b9f52dc6b09e1de2cea6cd6cac4376cfee92d94e2c01d310f691

  • C:\Users\Admin\AppData\Local\Temp\tmpFC61.tmp

    Filesize

    1KB

    MD5

    eef125b0b71bfdad77e20cd22962ceb1

    SHA1

    a69b07e8581c79e4f013fb2ea7142bff21b256c7

    SHA256

    0e47bf94b85bb2e6abc5f07e88e3ba2810ce0155ddfea8fd3443935a620e9e69

    SHA512

    b80c93c3810c66ce0779f710647570af18aa59e00eac0aaeb4d52a0b95a411b9e4aa75246fff6ec4a3ab61c372a7c5eb5abee825337e8d842467c9c805c91ed7

  • memory/1004-137-0x0000000000000000-mapping.dmp

  • memory/1048-139-0x0000000000000000-mapping.dmp

  • memory/1048-140-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1048-142-0x0000000005CB0000-0x0000000005D16000-memory.dmp

    Filesize

    408KB

  • memory/1048-143-0x0000000006950000-0x00000000069A0000-memory.dmp

    Filesize

    320KB

  • memory/1164-132-0x0000000000B00000-0x0000000000BA8000-memory.dmp

    Filesize

    672KB

  • memory/1164-133-0x0000000005BD0000-0x0000000006174000-memory.dmp

    Filesize

    5.6MB

  • memory/1164-134-0x0000000005530000-0x00000000055C2000-memory.dmp

    Filesize

    584KB

  • memory/1164-135-0x0000000005730000-0x00000000057CC000-memory.dmp

    Filesize

    624KB

  • memory/1164-136-0x00000000055F0000-0x00000000055FA000-memory.dmp

    Filesize

    40KB