Analysis

  • max time kernel
    146s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    10-04-2024 09:21

General

  • Target

    0335de8eadbbd5dc7cbe92ef869bcea6f6596ac39a38680142c982ec6e97ecde.xlam

  • Size

    127KB

  • MD5

    e0f6bcdb71df502f7aefe22db8207a69

  • SHA1

    9f7357219cbfb5b940d5809f8564a6bb821fa036

  • SHA256

    0335de8eadbbd5dc7cbe92ef869bcea6f6596ac39a38680142c982ec6e97ecde

  • SHA512

    ea9fc5fe2bcd8a225c7f7f7b8ea832e3d143278a07c6264edaf9476fb5e7852efdd9b3dbcde6e211ccb1e6d011b11845def65af58e9298a01b3067a05200d7cc

  • SSDEEP

    3072:NDKcDiVBG5Q0fULY/fPiY4XXnfWFsnNfWSWe:NDDD0BGCY/fkXvTNf5

Score
10/10

Malware Config

Extracted

Family

crimsonrat

C2

185.136.161.124

Signatures

  • CrimsonRAT main payload 1 IoCs
  • CrimsonRat

    Crimson RAT is a malware linked to a Pakistani-linked threat actor.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Office loads VBA resources, possible macro or embedded object present
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 7 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 WMI provider

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

  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\0335de8eadbbd5dc7cbe92ef869bcea6f6596ac39a38680142c982ec6e97ecde.xlam
    1⤵
    • Loads dropped DLL
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1204
    • C:\Users\Admin\Glhvadia\hbraeiwas.exe
      C:\Users\Admin\Glhvadia\hbraeiwas.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:2328
      • C:\ProgramData\Hdlharas\dlrarhsiva.exe
        "C:\ProgramData\Hdlharas\dlrarhsiva.exe"
        3⤵
        • Executes dropped EXE
        PID:2508

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\PROGRA~3\Hdlharas\mdkhm.zip

    Filesize

    56KB

    MD5

    f0992d9b27d773b120109a5d1adec3d0

    SHA1

    9b1764b9e7b24fd8f4763fd33376ad9278b0bf04

    SHA256

    3a50f9963f2f20618c907bfe5134cf11a727d2a4808875b6cba9ecb5ce635c04

    SHA512

    e5368ebe377ebce87d6aa242898ae8fc9f94db0987c6bca1f669375a418e11f5d99b5f406c91e82ef0cf42bc56efbced77a58b1921b8eecf49cb4ea3d348c235

  • C:\ProgramData\Hdlharas\dlrarhsiva.exe

    Filesize

    9.1MB

    MD5

    b35ab8d47748801afa154144c2891dc4

    SHA1

    c2c356c1a6abd7858d9a143da35c7fadff9f8edb

    SHA256

    15c45d634c70f0604cfe30806320090c66a65d8f8a26303db3c9c15bf3cc950c

    SHA512

    a89686b0e7bb0b7ab6281a69448cc050ce3fe6a5c56ec9f5f2869106b3e2560a84554463bb9bb277d7f6da5a90a9f07f8ab5369f793fbb21dab56d868ae1ed45

  • \Users\Admin\Glhvadia\hbraeiwas.exe

    Filesize

    83KB

    MD5

    4663018621abd6313f9edb03c0737517

    SHA1

    a9dd4c0303b261344d469362bd80c4e366e79692

    SHA256

    e2200fa8b8c4757039e3f78536d9442817331f530e4348e08f02af753e7ae024

    SHA512

    64d44f463b2d855c17b495ec056998b6f522f5078743621322f1cb574acf2ead445b0fe0f853a420941dfae2c09f5965ea383e48af74479d9c6c5a14c44a8f55

  • memory/1204-6-0x0000000000540000-0x0000000000640000-memory.dmp

    Filesize

    1024KB

  • memory/1204-19-0x0000000000540000-0x0000000000640000-memory.dmp

    Filesize

    1024KB

  • memory/1204-7-0x0000000000540000-0x0000000000640000-memory.dmp

    Filesize

    1024KB

  • memory/1204-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1204-5-0x0000000000540000-0x0000000000640000-memory.dmp

    Filesize

    1024KB

  • memory/1204-9-0x0000000000540000-0x0000000000640000-memory.dmp

    Filesize

    1024KB

  • memory/1204-10-0x0000000000540000-0x0000000000640000-memory.dmp

    Filesize

    1024KB

  • memory/1204-4-0x0000000000540000-0x0000000000640000-memory.dmp

    Filesize

    1024KB

  • memory/1204-56-0x0000000000540000-0x0000000000640000-memory.dmp

    Filesize

    1024KB

  • memory/1204-55-0x0000000000540000-0x0000000000640000-memory.dmp

    Filesize

    1024KB

  • memory/1204-54-0x000000007282D000-0x0000000072838000-memory.dmp

    Filesize

    44KB

  • memory/1204-8-0x0000000000540000-0x0000000000640000-memory.dmp

    Filesize

    1024KB

  • memory/1204-20-0x0000000000540000-0x0000000000640000-memory.dmp

    Filesize

    1024KB

  • memory/1204-1-0x000000007282D000-0x0000000072838000-memory.dmp

    Filesize

    44KB

  • memory/1204-3-0x0000000000540000-0x0000000000640000-memory.dmp

    Filesize

    1024KB

  • memory/2328-25-0x0000000000C70000-0x0000000000CF0000-memory.dmp

    Filesize

    512KB

  • memory/2328-53-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/2328-18-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/2328-17-0x0000000000C70000-0x0000000000CF0000-memory.dmp

    Filesize

    512KB

  • memory/2328-16-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/2508-50-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/2508-51-0x00000000009C0000-0x0000000000A40000-memory.dmp

    Filesize

    512KB

  • memory/2508-52-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/2508-57-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB