Analysis

  • max time kernel
    145s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-11-2024 12:11

General

  • Target

    ea1792f689bfe5ad3597c7f877b66f9fcf80d732e5233293d52d374d50cab991.msi

  • Size

    1.6MB

  • MD5

    3cb6b99b20930ac0dbadc10899dc511e

  • SHA1

    570c4ab78cf4bb22b78aac215a4a79189d4fa9ed

  • SHA256

    ea1792f689bfe5ad3597c7f877b66f9fcf80d732e5233293d52d374d50cab991

  • SHA512

    aedf58ea01d59cce191cb9c0f83dbdbf7e3e8f049c764b577d6a957cb5229c50dda7ec6760ca43ad4dbdb085ae02b07bc818f69ca08373243019af6683e4931c

  • SSDEEP

    49152:5Sj3YhW8zBQSc0ZnSKSZKumZr7A+zafUWM1q:oYY0ZnQK/A7fQ

Malware Config

Signatures

  • Brute Ratel C4

    A customized command and control framework for red teaming and adversary simulation.

  • Bruteratel family
  • Detect BruteRatel badger 3 IoCs
  • Blocklisted process makes network request 50 IoCs
  • 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 12 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 6 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 40 IoCs
  • Suspicious use of AdjustPrivilegeToken 63 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • 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\ea1792f689bfe5ad3597c7f877b66f9fcf80d732e5233293d52d374d50cab991.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:2656
  • 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:668
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3236
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 63C7DAA06E6BA2DAEED857909E2CB5BA
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:4736
    • C:\Windows\Installer\MSIE515.tmp
      "C:\Windows\Installer\MSIE515.tmp" /DontWait C:/Windows/SysWOW64/rundll32.exe C:\Users\Admin\AppData\Roaming\vierm_soft_x64.dll, GetDeepDVCState
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1004
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:1144
  • C:\Windows\SysWOW64\rundll32.exe
    "C:\Windows\SysWOW64\rundll32.exe" C:\Users\Admin\AppData\Roaming\vierm_soft_x64.dll, GetDeepDVCState
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3472
    • C:\Windows\system32\rundll32.exe
      "C:\Windows\SysWOW64\rundll32.exe" C:\Users\Admin\AppData\Roaming\vierm_soft_x64.dll, GetDeepDVCState
      2⤵
      • Blocklisted process makes network request
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      PID:2848

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Config.Msi\e57e13b.rbs

    Filesize

    1KB

    MD5

    06d543231dcb712d0dff5dd3f6fd39bd

    SHA1

    f076922b9a160894aa56f3e346275fb179500993

    SHA256

    0b28827e3e1442e376c7707ea11d5e7c98625d23dce099d6f4b4302ba13fd7b7

    SHA512

    ac6079c91c2b94fb6c5b8a5aca782ac695a98cfd2a31c93d794592f1bd328342dea5d8350d1ec1d2d8e2ba60fd2677ce99ed860ca11af154376729cec17eecfc

  • C:\Users\Admin\AppData\Roaming\vierm_soft_x64.dll

    Filesize

    749KB

    MD5

    b1ca25f5bb4edd293b3711c77eb99a6f

    SHA1

    178bba8686ea329b884a652fe0f8a0ae0c53d367

    SHA256

    97a6331239d451d7dfe15bfe17de8b419df741ae68bacd440808f8b8d3f99b8a

    SHA512

    d5a282a8f81e117b79616c44a260d89c7fee06f4ac1387675bc79c3bd7599a5d49fbe3d8fb3d4d42eea81a17564abc2d42288bc2dc468d1b16ed633ba421b32d

  • C:\Windows\Installer\MSIE177.tmp

    Filesize

    436KB

    MD5

    475d20c0ea477a35660e3f67ecf0a1df

    SHA1

    67340739f51e1134ae8f0ffc5ae9dd710e8e3a08

    SHA256

    426e6cf199a8268e8a7763ec3a4dd7add982b28c51d89ebea90ca792cbae14dd

    SHA512

    99525aaab2ab608134b5d66b5313e7fc3c2e2877395c5c171897d7a6c66efb26b606de1a4cb01118c2738ea4b6542e4eb4983e631231b3f340bf85e509a9589e

  • C:\Windows\Installer\MSIE515.tmp

    Filesize

    389KB

    MD5

    b9545ed17695a32face8c3408a6a3553

    SHA1

    f6c31c9cd832ae2aebcd88e7b2fa6803ae93fc83

    SHA256

    1e0e63b446eecf6c9781c7d1cae1f46a3bb31654a70612f71f31538fb4f4729a

    SHA512

    f6d6dc40dcba5ff091452d7cc257427dcb7ce2a21816b4fec2ee249e63246b64667f5c4095220623533243103876433ef8c12c9b612c0e95fdfffe41d1504e04

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

    Filesize

    24.1MB

    MD5

    9dda14b826c508a035c3b8c247d36cbc

    SHA1

    7e10813c69ac964795666287e61739eccb1b76b3

    SHA256

    2dffc30c033815939aec607774b85495f294f6633c1a5a2f29b4a64c73fa2348

    SHA512

    67f74e5b04943d442fbb06752e971123f438d191f9135e399bbd7e062bc32beb117aca47f1fde8ba12d0169c1c05e47957ab3b9feba898e40ffd5f68dba73b0a

  • \??\Volume{ff55cfe6-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{7e25a287-9f83-431e-a918-5bc307d122cf}_OnDiskSnapshotProp

    Filesize

    6KB

    MD5

    c883b5dda6514f09f70c20dadecfd82c

    SHA1

    fe2cf99053ff9070e8cf3735791566e260f80435

    SHA256

    27bb71d93172af77b99f907bf82062f4566c25984043d6661c9bfd98bb17436f

    SHA512

    980767172639bbf749c7e569824c1a0a5e1cdff1c6de6b4f89879d7a3039fb8bb29a77002cbada5c366395d63d51fc1e4ee91cb81b015a81d051f8a211cb3f0c

  • memory/2848-47-0x00007FFA21FD0000-0x00007FFA221C5000-memory.dmp

    Filesize

    2.0MB

  • memory/2848-53-0x0000020E10610000-0x0000020E1065C000-memory.dmp

    Filesize

    304KB

  • memory/2848-51-0x00007FFA1F900000-0x00007FFA1FBC9000-memory.dmp

    Filesize

    2.8MB

  • memory/2848-49-0x00007FFA21040000-0x00007FFA210FE000-memory.dmp

    Filesize

    760KB

  • memory/2848-62-0x0000000273F40000-0x0000000273F8A000-memory.dmp

    Filesize

    296KB

  • memory/2848-63-0x0000020E10610000-0x0000020E1065C000-memory.dmp

    Filesize

    304KB

  • memory/2848-46-0x0000000273F40000-0x0000000273F8A000-memory.dmp

    Filesize

    296KB

  • memory/2848-45-0x0000000273F40000-0x0000000273F8A000-memory.dmp

    Filesize

    296KB