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Analysis

  • max time kernel
    134s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/03/2023, 21:43

General

  • Target

    dac89be8aa934890907a63a2dfc1222a2718c81bec983c0da3a562c7724869b8.exe

  • Size

    761KB

  • MD5

    4ac6af41f618d75b7807a9cead475a79

  • SHA1

    a40310c7e6a24d74ee9b739fa457ece169066d07

  • SHA256

    dac89be8aa934890907a63a2dfc1222a2718c81bec983c0da3a562c7724869b8

  • SHA512

    08c1ca07e167509698b30ba5cfc17b34f5087c570b9aa138de6267550435006d2e2844051f4eb8f173135de5e96d2a95394df0a7483e05b74943dc47b14c75bc

  • SSDEEP

    12288:/zwlG1wFK2RWwXcPdit4kfFFXFGpaj4Jd++fd/qwvQ9qjd/rFPqFmwwzdDiC7v5q:LwlG1wF9WwXcPdit4kfFFXFGpaj4Jd+/

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.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\dac89be8aa934890907a63a2dfc1222a2718c81bec983c0da3a562c7724869b8.exe
    "C:\Users\Admin\AppData\Local\Temp\dac89be8aa934890907a63a2dfc1222a2718c81bec983c0da3a562c7724869b8.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1272
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RQGrrRAQiiB" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDB90.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2096
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:4340

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpDB90.tmp

    Filesize

    1KB

    MD5

    e0b8556375a7c96cf0aa85f681efd89f

    SHA1

    c80315e068969646cd95ef4836e26dcd68aa22a4

    SHA256

    c7d32ddcaad76b24211f4ce5a4107e3cd20eb844bf5a6fba821206a3b92d9769

    SHA512

    562f275128d0a90d8f70b3edf1f36f1aebca613613b5c78fb77d01075a35e2199f0ebfab5214e51c139a3cdfea5ccb28c103885902ae8fa25a160556b1ae1709

  • memory/1272-139-0x0000000005C00000-0x0000000005C10000-memory.dmp

    Filesize

    64KB

  • memory/1272-134-0x00000000058B0000-0x000000000594C000-memory.dmp

    Filesize

    624KB

  • memory/1272-136-0x00000000059F0000-0x0000000005A82000-memory.dmp

    Filesize

    584KB

  • memory/1272-137-0x0000000005950000-0x000000000595A000-memory.dmp

    Filesize

    40KB

  • memory/1272-138-0x0000000005B80000-0x0000000005BD6000-memory.dmp

    Filesize

    344KB

  • memory/1272-133-0x0000000000E30000-0x0000000000EF4000-memory.dmp

    Filesize

    784KB

  • memory/1272-140-0x0000000005C00000-0x0000000005C10000-memory.dmp

    Filesize

    64KB

  • memory/1272-135-0x0000000005F00000-0x00000000064A4000-memory.dmp

    Filesize

    5.6MB

  • memory/4340-144-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/4340-146-0x0000000005460000-0x00000000054C6000-memory.dmp

    Filesize

    408KB

  • memory/4340-147-0x00000000052A0000-0x00000000052B0000-memory.dmp

    Filesize

    64KB

  • memory/4340-148-0x0000000006CF0000-0x0000000006D40000-memory.dmp

    Filesize

    320KB

  • memory/4340-149-0x0000000006F10000-0x00000000070D2000-memory.dmp

    Filesize

    1.8MB

  • memory/4340-150-0x00000000052A0000-0x00000000052B0000-memory.dmp

    Filesize

    64KB