Analysis

  • max time kernel
    161s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-03-2024 02:07

General

  • Target

    3a950d7e6736f17c3df90844c76d934dc66c17ec76841a4ad58de07af7955f0f.msi

  • Size

    1.5MB

  • MD5

    c4e8f3e02fd50a4051f11048f1355726

  • SHA1

    c82bf39c9f4797f346447aecc1070fb8c892010f

  • SHA256

    3a950d7e6736f17c3df90844c76d934dc66c17ec76841a4ad58de07af7955f0f

  • SHA512

    e44d8330c4ffdae01614ed5d11c2f112cff9b39bae793242f983d039e1404d371a2697a77fa65b740e43548ab1b203607a6d82b05ff3df741be02bd99a136592

  • SSDEEP

    24576:QjGxLNvYLSMvZCFlp8zBQSc0ZoCvqKwx0ECIgYmfLVYeBZr7A0r7Jh3OnJ3qXIoj:QjivYpW8zBQSc0ZnSKeZKumZr7A+D3O2

Score
6/10

Malware Config

Signatures

  • Enumerates connected drives 3 TTPs 46 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Windows directory 10 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 10 IoCs
  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\3a950d7e6736f17c3df90844c76d934dc66c17ec76841a4ad58de07af7955f0f.msi
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:232
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4864
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 27EBBC17C18A1AD4DD4AB74B44C5F399 C
      2⤵
      • Loads dropped DLL
      PID:1140
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3236
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 5CA73BED1E2B1A33375D2A38A5428D93
        2⤵
        • Loads dropped DLL
        PID:2264
      • C:\Windows\Installer\MSIC85F.tmp
        "C:\Windows\Installer\MSIC85F.tmp" C:\Windows\System32\rundll32.exe C:\Users\Admin\AppData\Local\stat\falcon.dll, vgml
        2⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        PID:4772
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:4556
    • C:\Windows\System32\rundll32.exe
      "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Local\stat\falcon.dll, vgml
      1⤵
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4420
      • C:\Windows\System32\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_660c9e20.dll", vgml
        2⤵
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        PID:4800

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Config.Msi\e58bf83.rbs

      Filesize

      1KB

      MD5

      595d55785e9248e4f87c5f4f4fc57ce6

      SHA1

      ad061d3e707eaa364cf6c14b0769c3336ce43732

      SHA256

      3728e75b375f554f60a4e0201a4de4da1e95d8753f92785f2fa3ceaf054723c4

      SHA512

      81a72102a45cf9f66fc5ad498ddae2860861a44973f6580b4dae48d2dc8a108dd1bc891f3bc92248ee38a00e9dac11c4e1d68ddd35e086cc617599c1e00774c4

    • C:\Users\Admin\AppData\Local\Temp\MSI8DA9.tmp

      Filesize

      436KB

      MD5

      475d20c0ea477a35660e3f67ecf0a1df

      SHA1

      67340739f51e1134ae8f0ffc5ae9dd710e8e3a08

      SHA256

      426e6cf199a8268e8a7763ec3a4dd7add982b28c51d89ebea90ca792cbae14dd

      SHA512

      99525aaab2ab608134b5d66b5313e7fc3c2e2877395c5c171897d7a6c66efb26b606de1a4cb01118c2738ea4b6542e4eb4983e631231b3f340bf85e509a9589e

    • C:\Users\Admin\AppData\Local\stat\falcon.dll

      Filesize

      694KB

      MD5

      da8ae8e1de522b20a462239c6893613e

      SHA1

      7f65ef885815d81d220f9f42877ff0d696b0134c

      SHA256

      aee22a35cbdac3f16c3ed742c0b1bfe9739a13469cf43b36fb2c63565111028c

      SHA512

      d2dca9ba9272a0bdfa88f7520545e21a1f4d18dcacec36b072369cee8e28ba635a0214b47caef74b6f7fcd06e120d898da997e71c8955c72510972c66d2a855d

    • C:\Windows\Installer\MSIC85F.tmp

      Filesize

      389KB

      MD5

      b9545ed17695a32face8c3408a6a3553

      SHA1

      f6c31c9cd832ae2aebcd88e7b2fa6803ae93fc83

      SHA256

      1e0e63b446eecf6c9781c7d1cae1f46a3bb31654a70612f71f31538fb4f4729a

      SHA512

      f6d6dc40dcba5ff091452d7cc257427dcb7ce2a21816b4fec2ee249e63246b64667f5c4095220623533243103876433ef8c12c9b612c0e95fdfffe41d1504e04

    • \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2

      Filesize

      23.7MB

      MD5

      1a29c348b66c4cc1c48a469a635eade7

      SHA1

      df1c996527d120d54a76098c20ecc6f3bc330445

      SHA256

      f273d863ead2a4d793ecdeb3f017c9c5e29be2144a02e4da4f047f4a0ae0767a

      SHA512

      2a3183c443bfe82e1218c0f22e323b9afad24bc27cccb45a157fee2c20498659a8f102bcd33a9bb5d328cd8c0c7ad1030465f1c1b1127b8127192be41423354f

    • \??\Volume{0e54dc8f-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{c8e6ec8a-4c05-4044-ba4b-08a238a5ca34}_OnDiskSnapshotProp

      Filesize

      6KB

      MD5

      5a18c80a59c4f1afcd7bd1709b9cb5b5

      SHA1

      da1714d05be3bcf224f6e689eba3a4ce1942dfcd

      SHA256

      d1f47e60684412bd4227d58e746a956329f65a6c3fff670420f3e77e9ae4cc54

      SHA512

      569893deaf305431dfd0f04b0837d7444586407f64d9bfd990501b5039071eba170b4e1c1037815e1465c6945d7cfdc3c44504800c3c1146690cb57da5210043

    • memory/4420-51-0x000001C863D40000-0x000001C863D54000-memory.dmp

      Filesize

      80KB

    • memory/4420-55-0x0000000180000000-0x00000001800B5000-memory.dmp

      Filesize

      724KB

    • memory/4420-56-0x000001C863D40000-0x000001C863D54000-memory.dmp

      Filesize

      80KB

    • memory/4800-68-0x000002896ED60000-0x000002896ED74000-memory.dmp

      Filesize

      80KB

    • memory/4800-69-0x000002896ED60000-0x000002896ED74000-memory.dmp

      Filesize

      80KB