Analysis

  • max time kernel
    50s
  • max time network
    20s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    21-12-2023 02:19

General

  • Target

    Ghost Hunter Vena_d-34UG1.exe

  • Size

    10.5MB

  • MD5

    7c3cdfd4ec2ef7074aa6cba65aedec95

  • SHA1

    b248fdaf6f4bdcb0c470059065069c931c9b6362

  • SHA256

    6dea57ecfe1a092b1c434f571276426140f18b514b79128f8daee7d61cd85c63

  • SHA512

    c40ba8d6663ea6a3e9125d8bcdb2cae8fc34cfc9d6b70746769d7c0921176f21a881f85a91f6f6280f7ddacd654d7ae394de01718a8210968ed8cafe2f82de52

  • SSDEEP

    12288:fuI/t26BoC4OIrOdSj5KFbkj2jUUDJLLUp+ezD3iH:TuOdSf2IKRU

Malware Config

Extracted

Family

marsstealer

Botnet

Default

Signatures

  • Mars Stealer

    An infostealer written in C++ based on other infostealers.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Ghost Hunter Vena_d-34UG1.exe
    "C:\Users\Admin\AppData\Local\Temp\Ghost Hunter Vena_d-34UG1.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2932
    • C:\Users\Admin\AppData\Local\Temp\Low\GKJAF.exe
      "C:\Users\Admin\AppData\Local\Temp\Low\GKJAF.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:2620
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2620 -s 808
        3⤵
        • Loads dropped DLL
        • Program crash
        PID:2668

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Low\GKJAF.exe

    Filesize

    27KB

    MD5

    2f99ffd868c5ff919d23897058537c8e

    SHA1

    7f8f0cba294440026627ad86b5812b5bd5e535e6

    SHA256

    9660b3d526da3fe03549ef62b2dfddb3cb6f38e28f084df9e729a3b50e3e076f

    SHA512

    2425ade2f9670e1b8303061b0dae6b83d5f8fd686e8ea568d68de20f900e918d0d17b74b5f8e89cf0abf079374bb43c3b9f0ab7d30933abc20dc67f7b9afc443

  • C:\Users\Admin\AppData\Local\Temp\Low\GKJAF.exe

    Filesize

    51KB

    MD5

    6bdc999a6baedf655e2445d777cf4eef

    SHA1

    09f9372be9f20c9554d352d0571f0c8949b601d5

    SHA256

    51631895140e1927ca33d970f3e49500d4103c048d1a2105f8f0e2a146b927c4

    SHA512

    1f4cd6ed5238ba114c15413251097d952d266f3966bc7ce59aa8c8919f41efb7acc54d291cd5c1336105d1632929ea5c838f981ff13d38606ab03ec4a202d233

  • \Users\Admin\AppData\Local\Temp\Low\GKJAF.exe

    Filesize

    159KB

    MD5

    c68be1642adc5cb69f48b5a7605984ff

    SHA1

    091f7a33e6e0ddca20b5384d82edcf17feed921b

    SHA256

    26a05a291545b60e2218a663e3c9d629cdd0e076ec8d7adb2ca03cab80d2f3df

    SHA512

    0198b77c624df5639e058e46e92085410bb0f3aca2b45e9ffa9dc26588134755b5e13e213057dd6918f8f2573c214023bd04dc07b68ca329b7e5a440b2f5013f

  • memory/2620-15-0x0000000000400000-0x000000000043D000-memory.dmp

    Filesize

    244KB

  • memory/2932-0-0x0000000000950000-0x00000000009C2000-memory.dmp

    Filesize

    456KB

  • memory/2932-1-0x0000000074AF0000-0x00000000751DE000-memory.dmp

    Filesize

    6.9MB

  • memory/2932-2-0x00000000006C0000-0x0000000000700000-memory.dmp

    Filesize

    256KB

  • memory/2932-12-0x0000000000750000-0x000000000078D000-memory.dmp

    Filesize

    244KB

  • memory/2932-14-0x0000000074AF0000-0x00000000751DE000-memory.dmp

    Filesize

    6.9MB

  • memory/2932-13-0x0000000000750000-0x000000000078D000-memory.dmp

    Filesize

    244KB