Analysis

  • max time kernel
    141s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-12-2023 17:18

General

  • Target

    bffa608e609a6e2f67d01bb5f64ba70a.exe

  • Size

    2.6MB

  • MD5

    bffa608e609a6e2f67d01bb5f64ba70a

  • SHA1

    dfc31151b6886f6a0e18c6a564f766591772b78f

  • SHA256

    27c43e0863d1f53297dc16f09626d956c6f86cf3285bbd8eb8488eccb564fa66

  • SHA512

    4936cea91c0d0cfbba73d0a62fb31c3cf4f915611c031f358bb9f86fceeed8318d25b3b2e9785bed7a77d3c4093a48b8d58a01520190fa6fd30a2d27276863b7

  • SSDEEP

    12288:ljT1qos+lTLzwN9RYIA17At7y7qP7d1JHywHS38hy:+UlyYIApAxyGd1JSgS3my

Malware Config

Extracted

Family

marsstealer

Botnet

Default

C2

91.92.250.149/gate.php

Signatures

  • Mars Stealer

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

  • Loads dropped DLL 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bffa608e609a6e2f67d01bb5f64ba70a.exe
    "C:\Users\Admin\AppData\Local\Temp\bffa608e609a6e2f67d01bb5f64ba70a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:916
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddinProcess32.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddinProcess32.exe"
      2⤵
      • Loads dropped DLL
      PID:4424
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4424 -s 1280
        3⤵
        • Program crash
        PID:3636
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4424 -ip 4424
    1⤵
      PID:4084

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\mozglue.dll

      Filesize

      133KB

      MD5

      8f73c08a9660691143661bf7332c3c27

      SHA1

      37fa65dd737c50fda710fdbde89e51374d0c204a

      SHA256

      3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

      SHA512

      0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

    • C:\ProgramData\nss3.dll

      Filesize

      1.2MB

      MD5

      bfac4e3c5908856ba17d41edcd455a51

      SHA1

      8eec7e888767aa9e4cca8ff246eb2aacb9170428

      SHA256

      e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

      SHA512

      2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

    • memory/916-0-0x00000000001F0000-0x0000000000496000-memory.dmp

      Filesize

      2.6MB

    • memory/916-1-0x00007FFBE7600000-0x00007FFBE80C1000-memory.dmp

      Filesize

      10.8MB

    • memory/916-2-0x000000001B260000-0x000000001B270000-memory.dmp

      Filesize

      64KB

    • memory/916-4-0x00007FFBE7600000-0x00007FFBE80C1000-memory.dmp

      Filesize

      10.8MB

    • memory/4424-3-0x0000000000400000-0x000000000043D000-memory.dmp

      Filesize

      244KB

    • memory/4424-6-0x0000000000400000-0x000000000043D000-memory.dmp

      Filesize

      244KB

    • memory/4424-7-0x0000000000400000-0x000000000043D000-memory.dmp

      Filesize

      244KB

    • memory/4424-8-0x0000000060900000-0x0000000060992000-memory.dmp

      Filesize

      584KB

    • memory/4424-59-0x0000000000400000-0x000000000043D000-memory.dmp

      Filesize

      244KB