Analysis

  • max time kernel
    134s
  • max time network
    299s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    04-07-2024 22:31

General

  • Target

    137a7220fb3cbe605b6c74712ad96dcb1bdea1c489e9df159044500ccc23f3c8.exe

  • Size

    4.7MB

  • MD5

    06333e350e25e29677256d9be86e4ee1

  • SHA1

    088fa1f912473c3dfb5ab118b0bc39ec016cf15a

  • SHA256

    137a7220fb3cbe605b6c74712ad96dcb1bdea1c489e9df159044500ccc23f3c8

  • SHA512

    1475fd313ef0ca847eb7921b5bfb017f9b7f9274497df42fe3fa1477f40c6da8723ee0c46fa5c3fac6e9572c47712e1f4412c9460385c8f47117c82befdc329d

  • SSDEEP

    98304:QOHXslY4Scfsu4riBS64FsJHk0rxQyeYSKsXW:PHXslY4j4riIoJHkUeyexrXW

Malware Config

Extracted

Family

vidar

C2

https://t.me/g067n

https://steamcommunity.com/profiles/76561199707802586

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0

Extracted

Family

lumma

C2

https://civilizzzationo.shop/api

Signatures

  • Detect Vidar Stealer 6 IoCs
  • Lumma Stealer

    An infostealer written in C++ first seen in August 2022.

  • 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.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • 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 2 IoCs
  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\137a7220fb3cbe605b6c74712ad96dcb1bdea1c489e9df159044500ccc23f3c8.exe
    "C:\Users\Admin\AppData\Local\Temp\137a7220fb3cbe605b6c74712ad96dcb1bdea1c489e9df159044500ccc23f3c8.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5032
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
      2⤵
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1440
      • C:\ProgramData\IEGCBAAFHD.exe
        "C:\ProgramData\IEGCBAAFHD.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:3292
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          4⤵
            PID:2956
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:504
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 3292 -s 292
            4⤵
            • Program crash
            PID:936
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\GCGHJEBGHJKE" & exit
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2616
          • C:\Windows\SysWOW64\timeout.exe
            timeout /t 10
            4⤵
            • Delays execution with timeout.exe
            PID:2000

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\IEGCBAAFHD.exe

      Filesize

      937KB

      MD5

      168c5908924803d268d26965c32a5620

      SHA1

      9e0e2dc9c7e931c4ee860c32d83711c433f7b1a3

      SHA256

      2fd72d0d0fbc053a53adee5d9ec6cffde3fb5a3c6ba0c0490e24552b264d5449

      SHA512

      749f0e4da8d6fde35b53e769b0b594c2e63835f970eedc54c8c15889863811b5fb296650ae9f5e255bafdd4b942ad3434a60c48e05f1283820c378d30645f1c1

    • memory/1440-68-0x0000000000400000-0x0000000000648000-memory.dmp

      Filesize

      2.3MB

    • memory/1440-136-0x0000000000400000-0x0000000000648000-memory.dmp

      Filesize

      2.3MB

    • memory/1440-93-0x0000000000400000-0x0000000000648000-memory.dmp

      Filesize

      2.3MB

    • memory/1440-86-0x0000000000400000-0x0000000000648000-memory.dmp

      Filesize

      2.3MB

    • memory/1440-72-0x0000000000400000-0x0000000000648000-memory.dmp

      Filesize

      2.3MB

    • memory/1440-71-0x0000000000400000-0x0000000000648000-memory.dmp

      Filesize

      2.3MB

    • memory/5032-53-0x00000000056C0000-0x00000000056D5000-memory.dmp

      Filesize

      84KB

    • memory/5032-44-0x00000000056C0000-0x00000000056D5000-memory.dmp

      Filesize

      84KB

    • memory/5032-10-0x00000000056C0000-0x00000000056D5000-memory.dmp

      Filesize

      84KB

    • memory/5032-18-0x00000000056C0000-0x00000000056D5000-memory.dmp

      Filesize

      84KB

    • memory/5032-66-0x00000000056C0000-0x00000000056D5000-memory.dmp

      Filesize

      84KB

    • memory/5032-64-0x00000000056C0000-0x00000000056D5000-memory.dmp

      Filesize

      84KB

    • memory/5032-62-0x00000000056C0000-0x00000000056D5000-memory.dmp

      Filesize

      84KB

    • memory/5032-14-0x00000000056C0000-0x00000000056D5000-memory.dmp

      Filesize

      84KB

    • memory/5032-6-0x00000000056C0000-0x00000000056DC000-memory.dmp

      Filesize

      112KB

    • memory/5032-73-0x0000000073700000-0x0000000073DEE000-memory.dmp

      Filesize

      6.9MB

    • memory/5032-5-0x0000000005880000-0x000000000598A000-memory.dmp

      Filesize

      1.0MB

    • memory/5032-67-0x0000000073700000-0x0000000073DEE000-memory.dmp

      Filesize

      6.9MB

    • memory/5032-58-0x00000000056C0000-0x00000000056D5000-memory.dmp

      Filesize

      84KB

    • memory/5032-57-0x00000000056C0000-0x00000000056D5000-memory.dmp

      Filesize

      84KB

    • memory/5032-54-0x00000000056C0000-0x00000000056D5000-memory.dmp

      Filesize

      84KB

    • memory/5032-0-0x000000007370E000-0x000000007370F000-memory.dmp

      Filesize

      4KB

    • memory/5032-50-0x00000000056C0000-0x00000000056D5000-memory.dmp

      Filesize

      84KB

    • memory/5032-48-0x00000000056C0000-0x00000000056D5000-memory.dmp

      Filesize

      84KB

    • memory/5032-46-0x00000000056C0000-0x00000000056D5000-memory.dmp

      Filesize

      84KB

    • memory/5032-12-0x00000000056C0000-0x00000000056D5000-memory.dmp

      Filesize

      84KB

    • memory/5032-42-0x00000000056C0000-0x00000000056D5000-memory.dmp

      Filesize

      84KB

    • memory/5032-40-0x00000000056C0000-0x00000000056D5000-memory.dmp

      Filesize

      84KB

    • memory/5032-38-0x00000000056C0000-0x00000000056D5000-memory.dmp

      Filesize

      84KB

    • memory/5032-36-0x00000000056C0000-0x00000000056D5000-memory.dmp

      Filesize

      84KB

    • memory/5032-34-0x00000000056C0000-0x00000000056D5000-memory.dmp

      Filesize

      84KB

    • memory/5032-32-0x00000000056C0000-0x00000000056D5000-memory.dmp

      Filesize

      84KB

    • memory/5032-30-0x00000000056C0000-0x00000000056D5000-memory.dmp

      Filesize

      84KB

    • memory/5032-28-0x00000000056C0000-0x00000000056D5000-memory.dmp

      Filesize

      84KB

    • memory/5032-26-0x00000000056C0000-0x00000000056D5000-memory.dmp

      Filesize

      84KB

    • memory/5032-24-0x00000000056C0000-0x00000000056D5000-memory.dmp

      Filesize

      84KB

    • memory/5032-22-0x00000000056C0000-0x00000000056D5000-memory.dmp

      Filesize

      84KB

    • memory/5032-20-0x00000000056C0000-0x00000000056D5000-memory.dmp

      Filesize

      84KB

    • memory/5032-16-0x00000000056C0000-0x00000000056D5000-memory.dmp

      Filesize

      84KB

    • memory/5032-60-0x00000000056C0000-0x00000000056D5000-memory.dmp

      Filesize

      84KB

    • memory/5032-8-0x00000000056C0000-0x00000000056D5000-memory.dmp

      Filesize

      84KB

    • memory/5032-7-0x00000000056C0000-0x00000000056D5000-memory.dmp

      Filesize

      84KB

    • memory/5032-4-0x0000000073700000-0x0000000073DEE000-memory.dmp

      Filesize

      6.9MB

    • memory/5032-3-0x00000000031A0000-0x00000000031AA000-memory.dmp

      Filesize

      40KB

    • memory/5032-2-0x00000000057A0000-0x000000000583C000-memory.dmp

      Filesize

      624KB

    • memory/5032-1-0x0000000000960000-0x0000000000E1E000-memory.dmp

      Filesize

      4.7MB