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Overview

overview

10

Static

static

1

upd.msi

windows10-1703-x64

10

upd.msi

windows10-2004-x64

10

upd.msi

windows11-21h2-x64

10

Analysis

  • max time kernel
    1199s
  • max time network
    1207s
  • platform
    windows10-1703_x64
  • resource
    win10-20240221-en
  • resource tags

    arch:x64arch:x86image:win10-20240221-enlocale:en-usos:windows10-1703-x64system
  • submitted
    26/03/2024, 18:29

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General

  • Target

    upd.msi

  • Size

    1.4MB

  • MD5

    a32536810939d2264c9030b8a1b12186

  • SHA1

    25b92fa53392d8541c2213769fac25b7ecbc88f1

  • SHA256

    d83d5378f1bb37d1423207ad67f2f984f2d46ba9534194c344a051117c1e541f

  • SHA512

    681c2c3299252ee34e447733e6fd6a00133ade44acac9a46cd2f188fd9f6ea767a183ffc0855e7effd39e1ac873405f2d22a7c44e3ce8e39441119d71841029e

  • SSDEEP

    24576:1hFxLNvYLSMvZCFlp8zBQSc0ZoCvqKwx0ECIgYmfLVYeBZr7AJ/MqYzXZ:1h1vYpW8zBQSc0ZnSKeZKumZr7Amqg

Score
10/10
latrodectusloader

Malware Config

Extracted

Family

latrodectus

C2

https://titnovacrion.top/live/

https://grunzalom.fun/live/

Signatures

  • Latrodectus loader

    Latrodectus is a loader written in C++.

    loaderlatrodectus
  • Detect larodectus Loader variant 2 4 IoCs
    loader
  • Blocklisted process makes network request 64 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 10 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 10 IoCs
  • Checks SCSI registry key(s) 3 TTPs 64 IoCs

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

  • Modifies data under HKEY_USERS 2 IoCs
  • 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.

    persistence
  • Uses Volume Shadow Copy service COM API

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

    ransomware

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\upd.msi
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:1320
  • 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:4556
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 4719336FED613D0ABF135F711A62A19F C
      2⤵
      • Loads dropped DLL
      PID:4940
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4272
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 512DDC7992BECC48F9E3426DE9258073
        2⤵
        • Loads dropped DLL
        PID:4608
      • C:\Windows\Installer\MSI3FF6.tmp
        "C:\Windows\Installer\MSI3FF6.tmp" C:\Windows\System32\rundll32.exe C:\Users\Admin\AppData\Local\besr\cr2.dll, vgml
        2⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        PID:3992
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
        PID:344
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k netsvcs -s DsmSvc
        1⤵
        • Checks SCSI registry key(s)
        • Modifies data under HKEY_USERS
        PID:3404
      • C:\Windows\System32\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Local\besr\cr2.dll, vgml
        1⤵
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2188
        • C:\Windows\System32\rundll32.exe
          rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_2a8e4fb1.dll", vgml
          2⤵
          • Blocklisted process makes network request
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          PID:4528

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Config.Msi\e583c69.rbs
        Filesize

        1KB

        MD5

        31640edfc5a427856a30a4b53d6f3cd9

        SHA1

        b07d12621ef56cf7558ff7134484ddbaea6b17d5

        SHA256

        068521559a3fa00430612ce17876e845f128fee836bc4fee62c72513ad248588

        SHA512

        3d3063e11772d2b2ca7b18e12e2c176ec2e053fb8e92de104a2ff548ee87fcffb4e7d2be0f574605fb4c414bbae293243945d93aff509eaccfcb0f7585369d8b

        Download Submit

      • C:\Users\Admin\AppData\Local\Temp\MSI8126.tmp
        Filesize

        436KB

        MD5

        475d20c0ea477a35660e3f67ecf0a1df

        SHA1

        67340739f51e1134ae8f0ffc5ae9dd710e8e3a08

        SHA256

        426e6cf199a8268e8a7763ec3a4dd7add982b28c51d89ebea90ca792cbae14dd

        SHA512

        99525aaab2ab608134b5d66b5313e7fc3c2e2877395c5c171897d7a6c66efb26b606de1a4cb01118c2738ea4b6542e4eb4983e631231b3f340bf85e509a9589e

        Download Submit

      • C:\Users\Admin\AppData\Local\besr\cr2.dll
        Filesize

        277KB

        MD5

        f9425561701935d358f4f5b7fc2e5502

        SHA1

        f00b5a6bbd7f500c439bfa4e4dedc79850732597

        SHA256

        71fb25cc4c05ce9dd94614ed781d85a50dccf69042521abc6782d48df85e6de9

        SHA512

        8faa2b11ca95eed4b7d5aa7dcc36669d929e7d2c503714d7d220c660e9dad8aa92697f57080fa7589875fe36e3fa9b507e96970d9647373c82969c7972774bcb

        Download Submit

      • C:\Windows\Installer\MSI3FF6.tmp
        Filesize

        389KB

        MD5

        b9545ed17695a32face8c3408a6a3553

        SHA1

        f6c31c9cd832ae2aebcd88e7b2fa6803ae93fc83

        SHA256

        1e0e63b446eecf6c9781c7d1cae1f46a3bb31654a70612f71f31538fb4f4729a

        SHA512

        f6d6dc40dcba5ff091452d7cc257427dcb7ce2a21816b4fec2ee249e63246b64667f5c4095220623533243103876433ef8c12c9b612c0e95fdfffe41d1504e04

        Download Submit

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

        12.9MB

        MD5

        e6b0321ba8d647c87477f29cc04735bb

        SHA1

        47a891aa8fb861f39b780c05587d10c949a1f78c

        SHA256

        867318fd8d18fe1974ec907287cc2e8893092a67ab86eec9dc033828e12c1e6d

        SHA512

        79c75e24550b9d9fe97789c25b030e6e6ac506261b22c77738bdc171094099fb3b7aa7cc91af1ee123910d2e5c43cc56cbb158623fcccb136fa9129fb5a3dd56

        Download Submit

      • \??\Volume{d468bc4b-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{d522237d-8e75-4f3c-b43d-5b2df11e17df}_OnDiskSnapshotProp
        Filesize

        5KB

        MD5

        c191c035aef1f43c8eeb5c773fda8a1d

        SHA1

        40f8719cff2c57fa147e0d5c20f6972788d46f5f

        SHA256

        66247224b2b3bdf40e9b3d67722ab106b9f7a549b53ebfe33dee8d8be28e7c98

        SHA512

        86e399cb27a8747fb064ed8db156c3ddc62786b2c1e8054178e9c30d3dfd1e7bcb15418f87bbdc7ed351929ff76e5e17bec99e573d88a2e23fb72ff116a52348

        Download Submit

      • memory/2188-55-0x0000025CC0490000-0x0000025CC04C2000-memory.dmp

        Filesize

        200KB

        Download

      • memory/2188-56-0x0000025CC1E50000-0x0000025CC1E64000-memory.dmp

        Filesize

        80KB

        Download

      • memory/2188-58-0x00007FFFAE960000-0x00007FFFAE9AC000-memory.dmp

        Filesize

        304KB

        Download

      • memory/2188-61-0x0000025CC1E50000-0x0000025CC1E64000-memory.dmp

        Filesize

        80KB

        Download

      • memory/4528-74-0x000002038B0E0000-0x000002038B0F4000-memory.dmp

        Filesize

        80KB

        Download

      • memory/4528-73-0x000002038B0E0000-0x000002038B0F4000-memory.dmp

        Filesize

        80KB

        Download