Analysis

  • max time kernel
    137s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-11-2022 02:39

General

  • Target

    8c144f7d80cb70fc428dba1860dc8c19b19491acc7633d57c836ce29873754d0.exe

  • Size

    4.9MB

  • MD5

    44bbdef11c9b3468bf1826999eef5bcb

  • SHA1

    30f13f1903a31c21fb6cff1471e99cc2ef031600

  • SHA256

    8c144f7d80cb70fc428dba1860dc8c19b19491acc7633d57c836ce29873754d0

  • SHA512

    4c87c6adc6be200964a88d17bb943dddf94994d7ebbbed7ca5191183c234dca77cd73026d6db3fdb373dbf3d8d7333f80f3e189c4016d70e982eafedc9abef4f

  • SSDEEP

    98304:nHUIss4HTUFA7IGcJ/108bu3I+iZ7q1zPPXNAjtVa/u:nFnUcJ1Vq3I+7NAjtVa/u

Malware Config

Extracted

Family

cobaltstrike

Botnet

0

Attributes
  • watermark

    0

Signatures

  • Cobaltstrike

    Detected malicious payload which is part of Cobaltstrike.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of SetWindowsHookEx 15 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8c144f7d80cb70fc428dba1860dc8c19b19491acc7633d57c836ce29873754d0.exe
    "C:\Users\Admin\AppData\Local\Temp\8c144f7d80cb70fc428dba1860dc8c19b19491acc7633d57c836ce29873754d0.exe"
    1⤵
    • Checks computer location settings
    • Modifies registry class
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2860
    • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
      "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\·ÀÒß³öÐÐͳ¼Æ±í.xlsx"
      2⤵
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      PID:4132

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\·ÀÒß³öÐÐͳ¼Æ±í.xlsx

    Filesize

    9KB

    MD5

    af91fb9933c08b316fd43195a48b68ed

    SHA1

    f595eb04cb1acb6d9c80a5543b8abf929f6b5251

    SHA256

    7fe39dc7e70d5be92d5f484bdf103babef7ae6b0560b605e08a46436aacd05ca

    SHA512

    0b823194c49a215754be7f9ee7c497f9bb024bccf4142149c3d9fae585982d544b46b2730a9fa5082507fcd84cd5efd722620f1dd9d79621b88c2a7ece883d22

  • memory/2860-133-0x0000016955EB0000-0x0000016955FB0000-memory.dmp

    Filesize

    1024KB

  • memory/2860-134-0x0000016955FE0000-0x000001695602E000-memory.dmp

    Filesize

    312KB

  • memory/2860-143-0x0000016955EB0000-0x0000016955FB0000-memory.dmp

    Filesize

    1024KB

  • memory/4132-135-0x00007FFC70A50000-0x00007FFC70A60000-memory.dmp

    Filesize

    64KB

  • memory/4132-137-0x00007FFC70A50000-0x00007FFC70A60000-memory.dmp

    Filesize

    64KB

  • memory/4132-136-0x00007FFC70A50000-0x00007FFC70A60000-memory.dmp

    Filesize

    64KB

  • memory/4132-138-0x00007FFC70A50000-0x00007FFC70A60000-memory.dmp

    Filesize

    64KB

  • memory/4132-139-0x00007FFC70A50000-0x00007FFC70A60000-memory.dmp

    Filesize

    64KB

  • memory/4132-140-0x00007FFC6E780000-0x00007FFC6E790000-memory.dmp

    Filesize

    64KB

  • memory/4132-141-0x00007FFC6E780000-0x00007FFC6E790000-memory.dmp

    Filesize

    64KB