Analysis

  • max time kernel
    141s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-10-2024 02:00

General

  • Target

    ac9d0b246600964d743b74a30f3bb38ee21c8365c28e6427f3f29d0a2daea370.exe

  • Size

    6.4MB

  • MD5

    a741208b11e340f91215eebb5f1c05f7

  • SHA1

    36ea40e7aaddec858d80c63825107c313c21d155

  • SHA256

    ac9d0b246600964d743b74a30f3bb38ee21c8365c28e6427f3f29d0a2daea370

  • SHA512

    8f7feceed1e0b7550cc60a044d6c43a1a1826aa944a576bd1b7b83e84f0449cab7bc16aaf80d039319ed1ed5cde2f269bf010f136722f4d43f46162143c30433

  • SSDEEP

    49152:p0WvxmSzX5DFZ78WQajskJbw4VZQYKlVUHhNSDPfPMcFFVliyCWqMEUs9N+qaKDo:y8Ay18W6kJ3f

Malware Config

Signatures

  • CryptBot

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

  • Detects CryptBot payload 1 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

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

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

  • Checks installed software on the system 1 TTPs

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

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ac9d0b246600964d743b74a30f3bb38ee21c8365c28e6427f3f29d0a2daea370.exe
    "C:\Users\Admin\AppData\Local\Temp\ac9d0b246600964d743b74a30f3bb38ee21c8365c28e6427f3f29d0a2daea370.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:3208
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      "C:\Users\Admin\AppData\Local\Temp\service123.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:620
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /tn "ServiceData4" /tr "C:\Users\Admin\AppData\Local\Temp\/service123.exe" /st 00:01 /du 9800:59 /sc once /ri 1 /f
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:5056
  • C:\Users\Admin\AppData\Local\Temp\service123.exe
    C:\Users\Admin\AppData\Local\Temp\/service123.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    PID:2428
  • C:\Users\Admin\AppData\Local\Temp\service123.exe
    C:\Users\Admin\AppData\Local\Temp\/service123.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    PID:3976

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/620-24-0x0000000000DE0000-0x0000000000DF2000-memory.dmp

    Filesize

    72KB

  • memory/620-25-0x0000000074C50000-0x0000000074D84000-memory.dmp

    Filesize

    1.2MB

  • memory/2428-36-0x0000000000DE0000-0x0000000000DF2000-memory.dmp

    Filesize

    72KB

  • memory/3208-0-0x0000000069CC0000-0x000000006A377000-memory.dmp

    Filesize

    6.7MB

  • memory/3208-9-0x0000000000280000-0x00000000008EC000-memory.dmp

    Filesize

    6.4MB

  • memory/3208-22-0x0000000000280000-0x00000000008EC000-memory.dmp

    Filesize

    6.4MB

  • memory/3976-49-0x0000000000DE0000-0x0000000000DF2000-memory.dmp

    Filesize

    72KB