Windows 7 deprecation

Windows 7 will be removed from tria.ge on 2025-03-31

Analysis

  • max time kernel
    195s
  • max time network
    255s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    23/05/2024, 23:52

General

  • Target

    61c8ae9a56d98e1b23591deba30b0c3df73657b1538da56255337e81338380e6.exe

  • Size

    2.1MB

  • MD5

    6e4c4c16eb0a8ace6eff45bbf4af78b0

  • SHA1

    42f77ba20d965dd92b11b6de3daee169145ecfbd

  • SHA256

    61c8ae9a56d98e1b23591deba30b0c3df73657b1538da56255337e81338380e6

  • SHA512

    db8609ce4490594e576cb1c9991864ab259fa84f1879105bc10048b752605081bb42b4782cd6fcffcfc881ca75915e45e7eaba602cb2591b977f9500fbdffe53

  • SSDEEP

    49152:N6uDuaS9refe4JtTF+TxMoxc1TU+j+dAzGwlrh:N6uKb9L4tIuoITsdZ

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://steamcommunity.com/profiles/76561199689717899

https://t.me/copterwin

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0

Signatures

  • Detect Vidar Stealer 8 IoCs
  • Stealc

    Stealc is an infostealer written in C++.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Checks processor information in registry 2 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\61c8ae9a56d98e1b23591deba30b0c3df73657b1538da56255337e81338380e6.exe
    "C:\Users\Admin\AppData\Local\Temp\61c8ae9a56d98e1b23591deba30b0c3df73657b1538da56255337e81338380e6.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4448
    • C:\Users\Admin\AppData\Local\Temp\kat5BCC.tmp
      C:\Users\Admin\AppData\Local\Temp\kat5BCC.tmp
      2⤵
      • Executes dropped EXE
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:428

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\kat5BCC.tmp

    Filesize

    861KB

    MD5

    66064dbdb70a5eb15ebf3bf65aba254b

    SHA1

    0284fd320f99f62aca800fb1251eff4c31ec4ed7

    SHA256

    6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795

    SHA512

    b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

  • memory/428-4-0x0000000000400000-0x0000000000646000-memory.dmp

    Filesize

    2.3MB

  • memory/428-8-0x0000000000400000-0x0000000000646000-memory.dmp

    Filesize

    2.3MB

  • memory/428-10-0x0000000000400000-0x0000000000646000-memory.dmp

    Filesize

    2.3MB

  • memory/428-16-0x0000000000400000-0x0000000000646000-memory.dmp

    Filesize

    2.3MB

  • memory/428-17-0x0000000000400000-0x0000000000646000-memory.dmp

    Filesize

    2.3MB

  • memory/428-20-0x0000000019210000-0x000000001946F000-memory.dmp

    Filesize

    2.4MB

  • memory/428-34-0x0000000000400000-0x0000000000646000-memory.dmp

    Filesize

    2.3MB

  • memory/428-35-0x0000000000400000-0x0000000000646000-memory.dmp

    Filesize

    2.3MB

  • memory/4448-0-0x0000000000790000-0x0000000000791000-memory.dmp

    Filesize

    4KB

  • memory/4448-1-0x0000000004000000-0x0000000004149000-memory.dmp

    Filesize

    1.3MB

  • memory/4448-9-0x0000000000400000-0x000000000061C000-memory.dmp

    Filesize

    2.1MB