Analysis

  • max time kernel
    143s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-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.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 5 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.

  • 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.

  • 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 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ac9d0b246600964d743b74a30f3bb38ee21c8365c28e6427f3f29d0a2daea370.exe
    "C:\Users\Admin\AppData\Local\Temp\ac9d0b246600964d743b74a30f3bb38ee21c8365c28e6427f3f29d0a2daea370.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:1300
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      "C:\Users\Admin\AppData\Local\Temp\service123.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2856
    • 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:2944
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {404138CC-6149-451A-9BCE-8745A7014C78} S-1-5-21-3551809350-4263495960-1443967649-1000:NNYJZAHP\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1644
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      C:\Users\Admin\AppData\Local\Temp\/service123.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2992
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      C:\Users\Admin\AppData\Local\Temp\/service123.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:1856

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/1300-0-0x0000000069CC0000-0x000000006A377000-memory.dmp

    Filesize

    6.7MB

  • memory/1300-9-0x0000000000060000-0x00000000006CC000-memory.dmp

    Filesize

    6.4MB

  • memory/1300-21-0x0000000000060000-0x00000000006CC000-memory.dmp

    Filesize

    6.4MB

  • memory/1856-52-0x0000000000D20000-0x0000000000D32000-memory.dmp

    Filesize

    72KB

  • memory/2856-24-0x0000000000D20000-0x0000000000D32000-memory.dmp

    Filesize

    72KB

  • memory/2856-25-0x00000000745F0000-0x0000000074724000-memory.dmp

    Filesize

    1.2MB

  • memory/2992-37-0x0000000000D20000-0x0000000000D32000-memory.dmp

    Filesize

    72KB