Analysis

  • max time kernel
    166s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    27-11-2022 18:41

General

  • Target

    835954a8c5dfc1654c3f44a88d96a7ce3653c40448d68cf7772faf4ddb74b9d4.exe

  • Size

    1.4MB

  • MD5

    0567bfb2eef3409ab528c5ee0e59e4fe

  • SHA1

    aacc14fe1d94ef9fb521c0bace66515d2c78b098

  • SHA256

    835954a8c5dfc1654c3f44a88d96a7ce3653c40448d68cf7772faf4ddb74b9d4

  • SHA512

    7ccb62504252754d9c701a8f7cb4a0aaa4049d99fa43fa62c91bbc361db165e7f6f3d78fbbc25bab6a064d799077d0544586e8efd544c376e7de7c819475de54

  • SSDEEP

    24576:AIR+8WbmTKZ8TYlJQF3IR+8WbmTKZ+60UZX:AIiMYnQF3IifdZX

Malware Config

Signatures

  • Office macro that triggers on suspicious action 1 IoCs

    Office document macro which triggers in special circumstances - often malicious.

  • Enumerates physical storage devices 1 TTPs

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

  • Office loads VBA resources, possible macro or embedded object present
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\835954a8c5dfc1654c3f44a88d96a7ce3653c40448d68cf7772faf4ddb74b9d4.exe
    "C:\Users\Admin\AppData\Local\Temp\835954a8c5dfc1654c3f44a88d96a7ce3653c40448d68cf7772faf4ddb74b9d4.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1996
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\auto.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1496
      • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
        "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde
        3⤵
        • Enumerates system info in registry
        • Modifies Internet Explorer settings
        • Modifies registry class
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious use of SetWindowsHookEx
        PID:1292

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

2
T1082

Query Registry

1
T1012

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\auto.bat
    Filesize

    65B

    MD5

    1374ab899921c6fa847dcdaa9976905a

    SHA1

    fbf32f31948b3e0bc4cac0e3d7915bc0f0855476

    SHA256

    7e85dd5a2a806b1fef0e06fe737669e6f3b57f9eb841001edde3d120093f123e

    SHA512

    cb42f14061c0e6ea3e25c4a3cb6bebbd6b83536eca4be0f0550ed9c0b1c00479fb08e719024a5f01750cbc5f1dd2f5310ced9b01d26dddbb4efd37509db97d5e

  • C:\Users\Admin\AppData\Local\Temp\report.xls
    Filesize

    100KB

    MD5

    1aaa591fb54fd97b62ec5373fed21dac

    SHA1

    a40750ad1947e986c4c7cb3a2b7c1fba84fd1f8c

    SHA256

    0639502778b3cd3b19023c4d132c6ea2d2ad3e1bffb6aabea49ca5fe8632a63c

    SHA512

    95058f178b19881bfdc4a8c2bbbeb368162166ad423af8859eea2c1523f18a9ac9ba3da2bc6f3d3453275977d52ae727a3fae691f3a695f8ae1eab207236e35c

  • memory/1292-58-0x0000000000000000-mapping.dmp
  • memory/1292-59-0x000000002F401000-0x000000002F404000-memory.dmp
    Filesize

    12KB

  • memory/1292-60-0x0000000071A71000-0x0000000071A73000-memory.dmp
    Filesize

    8KB

  • memory/1292-61-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1292-62-0x0000000072A5D000-0x0000000072A68000-memory.dmp
    Filesize

    44KB

  • memory/1292-65-0x0000000072A5D000-0x0000000072A68000-memory.dmp
    Filesize

    44KB

  • memory/1496-55-0x0000000000000000-mapping.dmp
  • memory/1996-54-0x0000000076171000-0x0000000076173000-memory.dmp
    Filesize

    8KB