Resubmissions

20-11-2024 06:31

241120-hahknatdnl 10

19-11-2024 21:38

241119-1hfedatfnn 8

Analysis

  • max time kernel
    397s
  • max time network
    399s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-11-2024 06:31

General

  • Target

    merd.msi

  • Size

    2.0MB

  • MD5

    309abcad11b67d2498cf87c4e10ff30f

  • SHA1

    0d805a684b889846a7b00cecc0ee84c7cf93398d

  • SHA256

    c39abdca1a31b20fe06969a36102c784df7f63847ec930dfaf8c4bd97b4558bf

  • SHA512

    0f0c0f4a04ae65532a7f4c197ca22c371d904a5b3055e14bd537a3c092d8b4526a597564019395ed0b05d4ffbc6d9b450a8d267de3906f88ac2d320f9c75bdd9

  • SSDEEP

    49152:ecS3YhW8zBQSc0ZnSKBZKumZr7AQkojSo0kzI8ZVE6VPbe:sYY0Zn3K/AQz3Tbx56

Malware Config

Extracted

Family

latrodectus

C2

https://bestmarsgood.com/test/

https://cerwintifed.com/test/

Signatures

  • Detects Latrodectus 6 IoCs

    Detects Latrodectus v1.4.

  • Latrodectus family
  • Latrodectus loader

    Latrodectus is a loader written in C++.

  • Blocklisted process makes network request 13 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 20 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of UnmapMainImage
    PID:3380
    • C:\Windows\system32\msiexec.exe
      msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\merd.msi
      2⤵
      • Enumerates connected drives
      • Event Triggered Execution: Installer Packages
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:4668
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\SysWOW64\rundll32.exe" C:\Users\Admin\AppData\Roaming\sqx.dll, GetDbInterface
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4320
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\SysWOW64\rundll32.exe" C:\Users\Admin\AppData\Roaming\sqx.dll, GetDbInterface
        3⤵
        • Blocklisted process makes network request
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2272
  • 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:4448
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:5012
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 98FB30082A0B50FBDBE02561645D390C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:3096
    • C:\Windows\Installer\MSID49B.tmp
      "C:\Windows\Installer\MSID49B.tmp" /DontWait C:/Windows/SysWOW64/rundll32.exe C:\Users\Admin\AppData\Roaming\sqx.dll, GetDbInterface
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4816
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:2496

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Config.Msi\e57ceec.rbs

    Filesize

    1KB

    MD5

    7de9d72029b9e3b91325868f2bd6642b

    SHA1

    8308e391e44e36df5e729212fcad351768857365

    SHA256

    b641e831bee19e90214474dbcf5a03b748a2149bdcc676d38e0c55ff1e443dd7

    SHA512

    bbc60283498a7274ca7f718a600648360bd6ee38ea6798f46a062047a566c58d71863232101eda36931fd5b96221a0997f076486c228f4714c1d98c6c33e2e1f

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

    Filesize

    1.3MB

    MD5

    dd862590d9e4ea1791df147912ae4c8f

    SHA1

    852d7a9ea4db5ff4cd51a92447a8d5701cfb322b

    SHA256

    14ffcbbfb305287ea15264df3363567f36a26917ae2018af0f40e2009b8a7184

    SHA512

    3e9222d8bd91d3e53f5e378318a78a7c5aa12011272031f7c0d8c36c5b255db1d0a168cc02e1159eb021dd18206352dd6dcb857fefc2222937c467350dc6d568

  • C:\Windows\Installer\MSICF66.tmp

    Filesize

    436KB

    MD5

    475d20c0ea477a35660e3f67ecf0a1df

    SHA1

    67340739f51e1134ae8f0ffc5ae9dd710e8e3a08

    SHA256

    426e6cf199a8268e8a7763ec3a4dd7add982b28c51d89ebea90ca792cbae14dd

    SHA512

    99525aaab2ab608134b5d66b5313e7fc3c2e2877395c5c171897d7a6c66efb26b606de1a4cb01118c2738ea4b6542e4eb4983e631231b3f340bf85e509a9589e

  • C:\Windows\Installer\MSID49B.tmp

    Filesize

    389KB

    MD5

    b9545ed17695a32face8c3408a6a3553

    SHA1

    f6c31c9cd832ae2aebcd88e7b2fa6803ae93fc83

    SHA256

    1e0e63b446eecf6c9781c7d1cae1f46a3bb31654a70612f71f31538fb4f4729a

    SHA512

    f6d6dc40dcba5ff091452d7cc257427dcb7ce2a21816b4fec2ee249e63246b64667f5c4095220623533243103876433ef8c12c9b612c0e95fdfffe41d1504e04

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

    Filesize

    24.1MB

    MD5

    7406cbe7e279886901110bf530ecd79e

    SHA1

    a54942046d503f75b23a620b5b847fdcd70f2857

    SHA256

    c0ba4ad7ac984b0b7509492b7ca3f9840a944aafc2639fec759c162990c4e419

    SHA512

    950e35cda8e7a4e869d6b0d8a96601cd30bf40d4766a02d2c89a6b100fc69b4150e37ea4d2e7d257f50f7efc36578bb5c57d7f7356072d1a1ee45b2493f73236

  • \??\Volume{612d9cf5-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{1bff4c85-4a6b-4694-aec3-f34ebff9c25b}_OnDiskSnapshotProp

    Filesize

    6KB

    MD5

    6037630b14d47910a2ed85c4efc13eb7

    SHA1

    1f7cfc365c57451f23254ead19eb5ff6ebc664c8

    SHA256

    04d88805a3f73da9ae744f953955a174a70d08a0f872ec52ea16b53053fc3e4e

    SHA512

    470f77a95286ad6d8b94482ae6ef0f160e04939fbd7bb5a7d58cd12627ccd5b3cc1fb4670d8e268aec44fd18265f554edd4548b99eda824af777ffcd32d18652

  • memory/2272-65-0x00007FF4F5960000-0x00007FF4F5961000-memory.dmp

    Filesize

    4KB

  • memory/2272-64-0x00007FF4F5970000-0x00007FF4F5971000-memory.dmp

    Filesize

    4KB

  • memory/2272-62-0x00007FF4F5990000-0x00007FF4F5991000-memory.dmp

    Filesize

    4KB

  • memory/2272-61-0x00007FF4F59A0000-0x00007FF4F59B5000-memory.dmp

    Filesize

    84KB

  • memory/2272-60-0x00007FF4F59C0000-0x00007FF4F59C1000-memory.dmp

    Filesize

    4KB

  • memory/2272-63-0x00007FF4F5980000-0x00007FF4F5981000-memory.dmp

    Filesize

    4KB

  • memory/2272-75-0x000001C736D20000-0x000001C736D6C000-memory.dmp

    Filesize

    304KB

  • memory/2272-45-0x000001C736D20000-0x000001C736D6C000-memory.dmp

    Filesize

    304KB

  • memory/3380-80-0x00000000029E0000-0x00000000029F0000-memory.dmp

    Filesize

    64KB

  • memory/3380-88-0x00000000029E0000-0x00000000029F0000-memory.dmp

    Filesize

    64KB

  • memory/3380-66-0x0000000002A10000-0x0000000002A25000-memory.dmp

    Filesize

    84KB

  • memory/3380-81-0x00000000029E0000-0x00000000029F0000-memory.dmp

    Filesize

    64KB

  • memory/3380-85-0x00000000029E0000-0x00000000029F0000-memory.dmp

    Filesize

    64KB

  • memory/3380-83-0x00000000029E0000-0x00000000029F0000-memory.dmp

    Filesize

    64KB

  • memory/3380-82-0x00000000029E0000-0x00000000029F0000-memory.dmp

    Filesize

    64KB

  • memory/3380-84-0x00000000029E0000-0x00000000029F0000-memory.dmp

    Filesize

    64KB

  • memory/3380-86-0x00000000029E0000-0x00000000029F0000-memory.dmp

    Filesize

    64KB

  • memory/3380-67-0x0000000002A10000-0x0000000002A25000-memory.dmp

    Filesize

    84KB

  • memory/3380-91-0x00000000029E0000-0x00000000029F0000-memory.dmp

    Filesize

    64KB

  • memory/3380-89-0x00000000029E0000-0x00000000029F0000-memory.dmp

    Filesize

    64KB

  • memory/3380-87-0x00000000029E0000-0x00000000029F0000-memory.dmp

    Filesize

    64KB

  • memory/3380-90-0x00000000029E0000-0x00000000029F0000-memory.dmp

    Filesize

    64KB

  • memory/3380-92-0x00000000029E0000-0x00000000029F0000-memory.dmp

    Filesize

    64KB

  • memory/3380-93-0x00000000029E0000-0x00000000029F0000-memory.dmp

    Filesize

    64KB

  • memory/3380-94-0x00000000029E0000-0x00000000029F0000-memory.dmp

    Filesize

    64KB

  • memory/3380-95-0x00000000029E0000-0x00000000029F0000-memory.dmp

    Filesize

    64KB