Analysis

  • max time kernel
    141s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250129-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-01-2025 20:59

General

  • Target

    182de50dea4c507874652a9a7b50157d0ae9f4d682e96b1aebc3d9e14d42c243.exe

  • Size

    2.6MB

  • MD5

    aa545b008ef8305bb3e58cf41510c5ae

  • SHA1

    59cf3a193e2c4363667fede9908e89796dd08210

  • SHA256

    182de50dea4c507874652a9a7b50157d0ae9f4d682e96b1aebc3d9e14d42c243

  • SHA512

    a468daa36ffa8d6ad0871fb2153baa1e73dd2ec6f07fd205e10628c3d148bf1b6a3e972970978f11be29f03b214985e4fd8225d4ab135e0604c979e2b6143ec6

  • SSDEEP

    49152:Zsv8ko0OZzMMJVYo+EEY4A5u+Jt4ccnUSXY4NT/1qomWyNVA7eaoN14:ZsUkX6rJVf+y4A5l4LUSR9qomxA7eaoI

Malware Config

Extracted

Family

cryptbot

Signatures

  • CryptBot

    CryptBot is a C++ stealer distributed widely in bundle with other software.

  • Cryptbot family
  • Enumerates VirtualBox registry keys 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Embeds OpenSSL 1 IoCs

    Embeds OpenSSL, may be used to circumvent TLS interception.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\182de50dea4c507874652a9a7b50157d0ae9f4d682e96b1aebc3d9e14d42c243.exe
    "C:\Users\Admin\AppData\Local\Temp\182de50dea4c507874652a9a7b50157d0ae9f4d682e96b1aebc3d9e14d42c243.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4916
    • C:\Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x86.exe
      "C:\Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x86.exe"
      2⤵
      • Enumerates VirtualBox registry keys
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:3128

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x86.exe

    Filesize

    6.8MB

    MD5

    fbfb9312d141e6fd7150aacfa0c97aea

    SHA1

    e90711de017229ece005bed1bbf83d269170da9e

    SHA256

    f48bae1967d341dd1991b743ebffb544ef019e999786bb02abbee08512475d1a

    SHA512

    86ec6a2433a26ae534896552488041ad33828dd700c42342d9a3b5f7ca1eafa45b85a5d9e6de9bf4ca4463fd2979ec380fd7d58d085fa3e38e2a656a74d6a12e

  • memory/3128-9-0x00000000003F0000-0x0000000000ACC000-memory.dmp

    Filesize

    6.9MB

  • memory/3128-18-0x00000000003F0000-0x0000000000ACC000-memory.dmp

    Filesize

    6.9MB