Analysis

  • max time kernel
    135s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-12-2023 19:59

General

  • Target

    8b526ff1976f1ca1fde34987043d0dfe.exe

  • Size

    5.7MB

  • MD5

    8b526ff1976f1ca1fde34987043d0dfe

  • SHA1

    4148e8e132ea93c468f3cbe0bfd22e634534429e

  • SHA256

    f456a8901ab04ed11142a4f5413cbba1f13778a319b0c9d4815cb4f5e542c56c

  • SHA512

    17467935b180b02fd208f6e6b6a4501e8ef068ba585a498e72cbbcf17a930303105c561cfb1b865c018e106656e03a89004dcf62283536f2dbf8863461b972f0

  • SSDEEP

    98304:AWRoEv+kq6JTWCyMOAqy0x1N4gPSBdBND3SzVnNTEPg+i+0H2auhP3dmt93bRs:X0kbFoy0xfxPadBN7agg80HZuh0ba

Malware Config

Extracted

Family

marsstealer

C2

sadasew94okl234.000webhostapp.com/d1c107a865581ff88ad673786ee059f2.php

Signatures

  • Mars Stealer

    An infostealer written in C++ based on other infostealers.

  • Reads user/profile data of web browsers 2 TTPs

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

  • VMProtect packed file 2 IoCs

    Detects executables packed with VMProtect commercial packer.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8b526ff1976f1ca1fde34987043d0dfe.exe
    "C:\Users\Admin\AppData\Local\Temp\8b526ff1976f1ca1fde34987043d0dfe.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    PID:4984
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4984 -s 1388
      2⤵
      • Program crash
      PID:532
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 4984 -ip 4984
    1⤵
      PID:4904

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4984-0-0x0000000000400000-0x00000000009B5000-memory.dmp

      Filesize

      5.7MB

    • memory/4984-2-0x0000000000E20000-0x0000000000E21000-memory.dmp

      Filesize

      4KB

    • memory/4984-3-0x0000000000E30000-0x0000000000E31000-memory.dmp

      Filesize

      4KB

    • memory/4984-7-0x0000000000400000-0x00000000009B5000-memory.dmp

      Filesize

      5.7MB