Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-10-2024 22:07

General

  • Target

    be8f06d3b17cc7e33892df280b57bd1dc7bf3e6bdc4e34f5bdfcc5b2b8f2bcfc.exe

  • Size

    1.4MB

  • MD5

    9b9a35fe4818800c01e7b8b62f5b2a00

  • SHA1

    d7280eb795bfe05f454d6ced359d8dacc0f314eb

  • SHA256

    be8f06d3b17cc7e33892df280b57bd1dc7bf3e6bdc4e34f5bdfcc5b2b8f2bcfc

  • SHA512

    e79328d549cb3b65c832252a5e34dc7377310915c715b286aae1cbfa6e354190e8b674646fc2d1ed53035f625f42dba9c7a248387e7ad5967f8512271d4f7e80

  • SSDEEP

    24576:wBkVdlYA/y7jql9Rx53iaauEGVnWOQll0BPVjAuZZKOQmiVAOIM1:QsvojqHJzEqnWOqlAvQm6AOd1

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 2 IoCs

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

  • Executes dropped EXE 4 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 4 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 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\be8f06d3b17cc7e33892df280b57bd1dc7bf3e6bdc4e34f5bdfcc5b2b8f2bcfc.exe
    "C:\Users\Admin\AppData\Local\Temp\be8f06d3b17cc7e33892df280b57bd1dc7bf3e6bdc4e34f5bdfcc5b2b8f2bcfc.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2256
    • C:\Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x86.exe
      "C:\Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x86.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Suspicious use of WriteProcessMemory
      PID:3560
      • C:\Users\Admin\AppData\Local\Temp\service123.exe
        "C:\Users\Admin\AppData\Local\Temp\service123.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2288
      • 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
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2660
  • C:\Users\Admin\AppData\Local\Temp\service123.exe
    C:\Users\Admin\AppData\Local\Temp\/service123.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    PID:3140
  • C:\Users\Admin\AppData\Local\Temp\service123.exe
    C:\Users\Admin\AppData\Local\Temp\/service123.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    PID:3952

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

    7.2MB

    MD5

    52cca4535026d44d04230373590f57fa

    SHA1

    10c8b3e51a71d8adca731b985c34163a320b32c4

    SHA256

    ac35fc427952d4a283f69a51c9a166e61bc72072177f6aabbee5a62fe9ece2a0

    SHA512

    54233882c2a8e7ed26d649527739ff28be185e8b0f62e66addef28a1638a0ced3614cb2d86a7691bf32f985541cd8674644b128e135f6bf7d5258a55c1336c41

  • memory/2288-33-0x00000000004D0000-0x00000000004E2000-memory.dmp

    Filesize

    72KB

  • memory/2288-34-0x0000000073B30000-0x0000000073C64000-memory.dmp

    Filesize

    1.2MB

  • memory/3140-37-0x00000000004D0000-0x00000000004E2000-memory.dmp

    Filesize

    72KB

  • memory/3560-9-0x0000000069CC0000-0x000000006A377000-memory.dmp

    Filesize

    6.7MB

  • memory/3560-18-0x0000000000A70000-0x000000000119E000-memory.dmp

    Filesize

    7.2MB

  • memory/3560-31-0x0000000000A70000-0x000000000119E000-memory.dmp

    Filesize

    7.2MB

  • memory/3952-52-0x00000000004D0000-0x00000000004E2000-memory.dmp

    Filesize

    72KB