Analysis

  • max time kernel
    146s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-11-2022 22:27

General

  • Target

    shipping docs.exe

  • Size

    1.1MB

  • MD5

    ea957fec2bfc2448b11f998cbb72beec

  • SHA1

    16b48d262908d6493348c716664c7ed3d2e6579f

  • SHA256

    df4eed6b429eba0c7fe96cce25b317efe39b46a443574f1d0aa9445da22f0ac2

  • SHA512

    785c87a0a94d991e504357092f5433512b3aeb2f4faf68950c02b0d8e5328ea747b66b0976c2b78f9ea214691f91e7ac7da33460a7274c82a2c73cdac452f33d

  • SSDEEP

    24576:1ziwgh/awZ2DzNZHOM35/A5h95pRcH++:1ziTh/d4f35/A/dE

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5676971476:AAFdGsXW8kwzXNIluAGV-a4sJ2XBy68O9WI/

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.

  • 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 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\shipping docs.exe
    "C:\Users\Admin\AppData\Local\Temp\shipping docs.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4200
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\shipping docs.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4744
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\NbJyVSEVODXHn.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1576
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NbJyVSEVODXHn" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2BFD.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4052
    • C:\Users\Admin\AppData\Local\Temp\shipping docs.exe
      "C:\Users\Admin\AppData\Local\Temp\shipping docs.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4000

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\shipping docs.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • C:\Users\Admin\AppData\Local\Temp\tmp2BFD.tmp

    Filesize

    1KB

    MD5

    1d4ae07c62d57d35faa58715cbcbc204

    SHA1

    8f13777cc63784cbd0df27f5c5d8d822e5a30b1d

    SHA256

    32bda48ac55f80283ee1f4083ec5d399a468fb90879cc16caf4b60621d15c206

    SHA512

    25d3f667dd1ff0544ba1aacd3b2c17f774c1babe488d0632bde6d966e58a5b1888eea7061c3b444f1d5046bb703d1fc4bd85e4c74d9952c7d69ebc72d19ebc65

  • memory/1576-138-0x0000000000000000-mapping.dmp

  • memory/1576-142-0x0000000004CD0000-0x00000000052F8000-memory.dmp

    Filesize

    6.2MB

  • memory/4000-143-0x0000000000000000-mapping.dmp

  • memory/4000-144-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/4052-140-0x0000000000000000-mapping.dmp

  • memory/4200-135-0x0000000004FF0000-0x0000000004FFA000-memory.dmp

    Filesize

    40KB

  • memory/4200-136-0x00000000087C0000-0x000000000885C000-memory.dmp

    Filesize

    624KB

  • memory/4200-132-0x00000000004A0000-0x00000000005BE000-memory.dmp

    Filesize

    1.1MB

  • memory/4200-134-0x0000000004F50000-0x0000000004FE2000-memory.dmp

    Filesize

    584KB

  • memory/4200-133-0x0000000005420000-0x00000000059C4000-memory.dmp

    Filesize

    5.6MB

  • memory/4744-137-0x0000000000000000-mapping.dmp

  • memory/4744-139-0x0000000002760000-0x0000000002796000-memory.dmp

    Filesize

    216KB

  • memory/4744-146-0x00000000050F0000-0x0000000005112000-memory.dmp

    Filesize

    136KB