Analysis

  • max time kernel
    150s
  • max time network
    161s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/06/2024, 11:44

General

  • Target
    91a8df2a703c7a45dd810b8ac711b3f1_JaffaCakes118.exe
  • Size 2.0MB
  • Sample240603-nwhqfaee93
  • SHA256 12dd0096f6d94a29abc4f8da7203dfef2b3f8ce5a0fb4c959fe53caa3b26d4a3
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • cryptbot

C2
  • nkoopw01.top

  • moraass06.top

Signatures

  • CryptBot

    A C++ stealer distributed widely in bundle with other software.

  • CryptBot payload 18 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Identifies Wine through registry keys 2 TTPs 1 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • 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 2 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\91a8df2a703c7a45dd810b8ac711b3f1_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\91a8df2a703c7a45dd810b8ac711b3f1_JaffaCakes118.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    PID:2964
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1032 --field-trial-handle=2280,i,716736634476467098,11449718822158202904,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:1824

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          3wVKNZeIj.zip

          • Path C:\Users\Admin\AppData\Local\Temp\PZLmFMi\3wVKNZeIj.zip
          • Size 38KB
          • SHA256 e8e42f366663ba5ee62f71c5dd1b9ae0b79371e942a9881843527cd958a7d99d
          • MD5 SHA1 SHA512 SSDEEP

          _Information.txt

          • Path C:\Users\Admin\AppData\Local\Temp\PZLmFMi\_Files\_Information.txt
          • Size 4KB
          • SHA256 bb5be695c5906d813a8810ebb7dbb1439d4c9ed432b835b4b8b7dc4fcdf6606f
          • MD5 SHA1 SHA512 SSDEEP

          _Screen_Desktop.jpeg

          • Path C:\Users\Admin\AppData\Local\Temp\PZLmFMi\_Files\_Screen_Desktop.jpeg
          • Size 44KB
          • SHA256 4d78f6a132db2eef7a7bcc4eec606e689ce170fe1f17802f7d2b6a745acee04d
          • MD5 SHA1 SHA512 SSDEEP

          system_info.txt

          • Path C:\Users\Admin\AppData\Local\Temp\PZLmFMi\files_\system_info.txt
          • Size 1KB
          • SHA256 bdf02e9a51b404a34f43c83ad013eb05b09af49b5f4dcf817a7113ac362278b2
          • MD5 SHA1 SHA512

          system_info.txt

          • Path C:\Users\Admin\AppData\Local\Temp\PZLmFMi\files_\system_info.txt
          • Size 3KB
          • SHA256 407e7e03298516f27f2d9251a5cac6ca9d523d5406712c81ffa2331ed7c86dad
          • MD5 SHA1 SHA512

          system_info.txt

          • Path C:\Users\Admin\AppData\Local\Temp\PZLmFMi\files_\system_info.txt
          • Size 4KB
          • SHA256 c2ec2342a574808d97720e53fc5646c8d9cb1d5627b9526925817929c721330d
          • MD5 SHA1 SHA512 SSDEEP

          system_info.txt

          • Path C:\Users\Admin\AppData\Local\Temp\PZLmFMi\files_\system_info.txt
          • Size 4KB
          • SHA256 25b9bf98e15e73bdc045b0c1602573275efeb91f1271dca9117615d44f250ee5
          • MD5 SHA1 SHA512 SSDEEP

          yHY8NpAVieA4k.zip

          • Path C:\Users\Admin\AppData\Local\Temp\PZLmFMi\yHY8NpAVieA4k.zip
          • Size 38KB
          • SHA256 d8272fbe193ee73fecc58b8aafd9f15ecadc3e7bcb91b027a908df1a20ed2786
          • MD5 SHA1 SHA512 SSDEEP

          memory/2964-215-0x0000000000630000-0x0000000000B20000-memory.dmp

          memory/2964-3-0x00000000051D0000-0x00000000051D1000-memory.dmp

          memory/2964-7-0x0000000000630000-0x0000000000B20000-memory.dmp

          memory/2964-6-0x0000000000630000-0x0000000000B20000-memory.dmp

          memory/2964-5-0x0000000000631000-0x000000000068C000-memory.dmp

          memory/2964-2-0x00000000051B0000-0x00000000051B1000-memory.dmp

          memory/2964-4-0x00000000051C0000-0x00000000051C1000-memory.dmp

          memory/2964-214-0x0000000000630000-0x0000000000B20000-memory.dmp

          memory/2964-0-0x0000000000630000-0x0000000000B20000-memory.dmp

          memory/2964-217-0x0000000000630000-0x0000000000B20000-memory.dmp

          memory/2964-219-0x0000000000630000-0x0000000000B20000-memory.dmp

          memory/2964-56-0x0000000000630000-0x0000000000B20000-memory.dmp

          memory/2964-221-0x0000000000630000-0x0000000000B20000-memory.dmp

          memory/2964-224-0x0000000000630000-0x0000000000B20000-memory.dmp

          memory/2964-226-0x0000000000630000-0x0000000000B20000-memory.dmp

          memory/2964-229-0x0000000000630000-0x0000000000B20000-memory.dmp

          memory/2964-232-0x0000000000630000-0x0000000000B20000-memory.dmp

          memory/2964-235-0x0000000000630000-0x0000000000B20000-memory.dmp

          memory/2964-238-0x0000000000630000-0x0000000000B20000-memory.dmp

          memory/2964-240-0x0000000000630000-0x0000000000B20000-memory.dmp

          memory/2964-243-0x0000000000630000-0x0000000000B20000-memory.dmp

          memory/2964-249-0x0000000000630000-0x0000000000B20000-memory.dmp

          memory/2964-251-0x0000000000630000-0x0000000000B20000-memory.dmp

          memory/2964-1-0x00000000772D4000-0x00000000772D6000-memory.dmp