Analysis

  • max time kernel
    146s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    18-10-2024 03:01

General

  • Target

    ec429ff1650c6c143470d798c67f8b3cfcef285badb0006add081b4324b625e4.exe

  • Size

    6.6MB

  • MD5

    6a425f365fe6499f0f60f6b89445e82b

  • SHA1

    5621452c81dcc2cc3d9e6eff07bb1d016485dc54

  • SHA256

    ec429ff1650c6c143470d798c67f8b3cfcef285badb0006add081b4324b625e4

  • SHA512

    a3f534fe70962ce4dd7155500c2bf2c015fd7d7373798785f3bbc20333534f790d8156e367a8343b9106e7deafedf87a882c819798904c10da2178fc45bf5d2e

  • SSDEEP

    49152:eYUFc/KQ785b3qjXqHvQoG4WtxiY4V3HUkRNd1aKLTjvc4lV6Cy6brU4I:Caf4QbqHvfGVs

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.

  • 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.

  • 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\ec429ff1650c6c143470d798c67f8b3cfcef285badb0006add081b4324b625e4.exe
    "C:\Users\Admin\AppData\Local\Temp\ec429ff1650c6c143470d798c67f8b3cfcef285badb0006add081b4324b625e4.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:1528
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      "C:\Users\Admin\AppData\Local\Temp\service123.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2792
    • 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:2968
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {03257BC6-C9C8-410D-AC8D-18B2D953344E} S-1-5-21-2039016743-699959520-214465309-1000:PIDEURYY\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1944
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      C:\Users\Admin\AppData\Local\Temp\/service123.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2700
    • C:\Users\Admin\AppData\Local\Temp\service123.exe
      C:\Users\Admin\AppData\Local\Temp\/service123.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2300

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1528-0-0x0000000069CC0000-0x000000006A37B000-memory.dmp

    Filesize

    6.7MB

  • memory/1528-9-0x0000000000150000-0x00000000007F0000-memory.dmp

    Filesize

    6.6MB

  • memory/1528-25-0x0000000000150000-0x00000000007F0000-memory.dmp

    Filesize

    6.6MB

  • memory/2300-49-0x0000000000920000-0x0000000000932000-memory.dmp

    Filesize

    72KB

  • memory/2700-34-0x0000000000920000-0x0000000000932000-memory.dmp

    Filesize

    72KB

  • memory/2792-27-0x0000000000920000-0x0000000000932000-memory.dmp

    Filesize

    72KB

  • memory/2792-28-0x0000000074500000-0x0000000074634000-memory.dmp

    Filesize

    1.2MB