Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-07-2024 01:30

General

  • Target

    83b2f6c63dc3ec6cea64755ce2042ff747d52571daaef8a47934e00378f0afd3.exe

  • Size

    5.5MB

  • MD5

    1ed6f9d578e14edad0bf47edf1f6269f

  • SHA1

    0e6546d7a7f237a4c094e24810fd4ab29ab6a970

  • SHA256

    83b2f6c63dc3ec6cea64755ce2042ff747d52571daaef8a47934e00378f0afd3

  • SHA512

    7481e391bc9fd0b0a30ca7464847e6ab0bbaa4febb8bfb33407742fd2e90f7fb0d88fd2ab0dc49fa499864e16a234d6f910926944c2a3ce337d614351dccfd60

  • SSDEEP

    98304:zeL9fRCBL/JS6w1PMcf5blPwJp003KOIupEAjlgJHc6:zeL9ROL/Eh/PQbaObEACl

Malware Config

Extracted

Family

vidar

C2

https://t.me/bu77un

https://steamcommunity.com/profiles/76561199730044335

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.1) Gecko/20100101 Firefox/128.1

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 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\83b2f6c63dc3ec6cea64755ce2042ff747d52571daaef8a47934e00378f0afd3.exe
    "C:\Users\Admin\AppData\Local\Temp\83b2f6c63dc3ec6cea64755ce2042ff747d52571daaef8a47934e00378f0afd3.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1132
    • 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:232
      • C:\ProgramData\HIDHDGDHJE.exe
        "C:\ProgramData\HIDHDGDHJE.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:404
        • 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:2552
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 404 -s 308
          4⤵
          • Program crash
          PID:2760
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\AFCBAEBAEBFH" & exit
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2244
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 10
          4⤵
          • Delays execution with timeout.exe
          PID:624
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 404 -ip 404
    1⤵
      PID:3556

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\HIDHDGDHJE.exe

      Filesize

      937KB

      MD5

      168c5908924803d268d26965c32a5620

      SHA1

      9e0e2dc9c7e931c4ee860c32d83711c433f7b1a3

      SHA256

      2fd72d0d0fbc053a53adee5d9ec6cffde3fb5a3c6ba0c0490e24552b264d5449

      SHA512

      749f0e4da8d6fde35b53e769b0b594c2e63835f970eedc54c8c15889863811b5fb296650ae9f5e255bafdd4b942ad3434a60c48e05f1283820c378d30645f1c1

    • memory/232-68-0x0000000000400000-0x0000000000648000-memory.dmp

      Filesize

      2.3MB

    • memory/232-147-0x0000000000400000-0x0000000000648000-memory.dmp

      Filesize

      2.3MB

    • memory/232-129-0x0000000000400000-0x0000000000648000-memory.dmp

      Filesize

      2.3MB

    • memory/232-82-0x0000000000400000-0x0000000000648000-memory.dmp

      Filesize

      2.3MB

    • memory/232-71-0x0000000000400000-0x0000000000648000-memory.dmp

      Filesize

      2.3MB

    • memory/232-66-0x0000000000400000-0x0000000000648000-memory.dmp

      Filesize

      2.3MB

    • memory/404-140-0x00000000007D0000-0x00000000007D1000-memory.dmp

      Filesize

      4KB

    • memory/1132-41-0x00000000058A0000-0x00000000058B5000-memory.dmp

      Filesize

      84KB

    • memory/1132-29-0x00000000058A0000-0x00000000058B5000-memory.dmp

      Filesize

      84KB

    • memory/1132-59-0x00000000058A0000-0x00000000058B5000-memory.dmp

      Filesize

      84KB

    • memory/1132-63-0x00000000058A0000-0x00000000058B5000-memory.dmp

      Filesize

      84KB

    • memory/1132-69-0x00000000747F0000-0x0000000074FA0000-memory.dmp

      Filesize

      7.7MB

    • memory/1132-65-0x00000000058A0000-0x00000000058B5000-memory.dmp

      Filesize

      84KB

    • memory/1132-72-0x00000000747F0000-0x0000000074FA0000-memory.dmp

      Filesize

      7.7MB

    • memory/1132-31-0x00000000058A0000-0x00000000058B5000-memory.dmp

      Filesize

      84KB

    • memory/1132-57-0x00000000058A0000-0x00000000058B5000-memory.dmp

      Filesize

      84KB

    • memory/1132-55-0x00000000058A0000-0x00000000058B5000-memory.dmp

      Filesize

      84KB

    • memory/1132-53-0x00000000058A0000-0x00000000058B5000-memory.dmp

      Filesize

      84KB

    • memory/1132-51-0x00000000058A0000-0x00000000058B5000-memory.dmp

      Filesize

      84KB

    • memory/1132-49-0x00000000058A0000-0x00000000058B5000-memory.dmp

      Filesize

      84KB

    • memory/1132-47-0x00000000058A0000-0x00000000058B5000-memory.dmp

      Filesize

      84KB

    • memory/1132-45-0x00000000058A0000-0x00000000058B5000-memory.dmp

      Filesize

      84KB

    • memory/1132-43-0x00000000058A0000-0x00000000058B5000-memory.dmp

      Filesize

      84KB

    • memory/1132-0-0x00000000747FE000-0x00000000747FF000-memory.dmp

      Filesize

      4KB

    • memory/1132-39-0x00000000058A0000-0x00000000058B5000-memory.dmp

      Filesize

      84KB

    • memory/1132-37-0x00000000058A0000-0x00000000058B5000-memory.dmp

      Filesize

      84KB

    • memory/1132-35-0x00000000058A0000-0x00000000058B5000-memory.dmp

      Filesize

      84KB

    • memory/1132-34-0x00000000058A0000-0x00000000058B5000-memory.dmp

      Filesize

      84KB

    • memory/1132-61-0x00000000058A0000-0x00000000058B5000-memory.dmp

      Filesize

      84KB

    • memory/1132-27-0x00000000058A0000-0x00000000058B5000-memory.dmp

      Filesize

      84KB

    • memory/1132-25-0x00000000058A0000-0x00000000058B5000-memory.dmp

      Filesize

      84KB

    • memory/1132-23-0x00000000058A0000-0x00000000058B5000-memory.dmp

      Filesize

      84KB

    • memory/1132-21-0x00000000058A0000-0x00000000058B5000-memory.dmp

      Filesize

      84KB

    • memory/1132-19-0x00000000058A0000-0x00000000058B5000-memory.dmp

      Filesize

      84KB

    • memory/1132-17-0x00000000058A0000-0x00000000058B5000-memory.dmp

      Filesize

      84KB

    • memory/1132-15-0x00000000058A0000-0x00000000058B5000-memory.dmp

      Filesize

      84KB

    • memory/1132-13-0x00000000058A0000-0x00000000058B5000-memory.dmp

      Filesize

      84KB

    • memory/1132-11-0x00000000058A0000-0x00000000058B5000-memory.dmp

      Filesize

      84KB

    • memory/1132-9-0x00000000058A0000-0x00000000058B5000-memory.dmp

      Filesize

      84KB

    • memory/1132-7-0x00000000058A0000-0x00000000058B5000-memory.dmp

      Filesize

      84KB

    • memory/1132-6-0x00000000058A0000-0x00000000058B5000-memory.dmp

      Filesize

      84KB

    • memory/1132-5-0x00000000058A0000-0x00000000058BC000-memory.dmp

      Filesize

      112KB

    • memory/1132-4-0x0000000005AA0000-0x0000000005B84000-memory.dmp

      Filesize

      912KB

    • memory/1132-3-0x00000000747F0000-0x0000000074FA0000-memory.dmp

      Filesize

      7.7MB

    • memory/1132-2-0x0000000005A00000-0x0000000005A9C000-memory.dmp

      Filesize

      624KB

    • memory/1132-1-0x0000000000980000-0x0000000000EFA000-memory.dmp

      Filesize

      5.5MB

    • memory/2552-144-0x0000000000400000-0x0000000000457000-memory.dmp

      Filesize

      348KB

    • memory/2552-148-0x0000000000400000-0x0000000000457000-memory.dmp

      Filesize

      348KB