Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-05-2024 12:57

General

  • Target

    55b18033bb16a6ebd933d4b24c7828c19ea0ec0937cbb06be066053c204d9753.exe

  • Size

    469KB

  • MD5

    051f65734fe5b3908b4e8c8810866caa

  • SHA1

    c94cfcbd18c595495d8851679c3a7eb6e6af1ec3

  • SHA256

    55b18033bb16a6ebd933d4b24c7828c19ea0ec0937cbb06be066053c204d9753

  • SHA512

    8a4770ca61f2a3f42631f61b55f256e362bb8c6766566ee6a1c18714d6e5f3f5590a1bf01f6d4ac0be80077c5a306acf6ed95338e0bb0731c35a352386f35b8a

  • SSDEEP

    12288:ulBmU+zoOXc065zzMWv9yT2EyBkXoGzud3Kiz7xhGupT:M6zoOCzzMWVpEyedyd3/xhlT

Malware Config

Extracted

Family

redline

Botnet

@mass1vexdd

C2

45.15.156.167:80

Signatures

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine payload 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 1 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\55b18033bb16a6ebd933d4b24c7828c19ea0ec0937cbb06be066053c204d9753.exe
    "C:\Users\Admin\AppData\Local\Temp\55b18033bb16a6ebd933d4b24c7828c19ea0ec0937cbb06be066053c204d9753.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2540
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • Modifies system certificate store
      PID:2548
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2540 -s 356
      2⤵
      • Program crash
      PID:2672
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2540 -ip 2540
    1⤵
      PID:4384

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\Tmp3A88.tmp

      Filesize

      2KB

      MD5

      1420d30f964eac2c85b2ccfe968eebce

      SHA1

      bdf9a6876578a3e38079c4f8cf5d6c79687ad750

      SHA256

      f3327793e3fd1f3f9a93f58d033ed89ce832443e2695beca9f2b04adba049ed9

      SHA512

      6fcb6ce148e1e246d6805502d4914595957061946751656567a5013d96033dd1769a22a87c45821e7542cde533450e41182cee898cd2ccf911c91bc4822371a8

    • memory/2540-1-0x0000000000FF2000-0x0000000000FF3000-memory.dmp

      Filesize

      4KB

    • memory/2548-23-0x0000000006210000-0x0000000006286000-memory.dmp

      Filesize

      472KB

    • memory/2548-24-0x00000000069C0000-0x00000000069DE000-memory.dmp

      Filesize

      120KB

    • memory/2548-4-0x00000000055D0000-0x0000000005662000-memory.dmp

      Filesize

      584KB

    • memory/2548-5-0x0000000005770000-0x000000000577A000-memory.dmp

      Filesize

      40KB

    • memory/2548-6-0x0000000074400000-0x0000000074BB0000-memory.dmp

      Filesize

      7.7MB

    • memory/2548-2-0x000000007440E000-0x000000007440F000-memory.dmp

      Filesize

      4KB

    • memory/2548-0-0x0000000000400000-0x0000000000452000-memory.dmp

      Filesize

      328KB

    • memory/2548-3-0x0000000005AA0000-0x0000000006044000-memory.dmp

      Filesize

      5.6MB

    • memory/2548-27-0x0000000007350000-0x0000000007968000-memory.dmp

      Filesize

      6.1MB

    • memory/2548-28-0x0000000008BD0000-0x0000000008CDA000-memory.dmp

      Filesize

      1.0MB

    • memory/2548-29-0x0000000007260000-0x0000000007272000-memory.dmp

      Filesize

      72KB

    • memory/2548-30-0x00000000072C0000-0x00000000072FC000-memory.dmp

      Filesize

      240KB

    • memory/2548-31-0x0000000007300000-0x000000000734C000-memory.dmp

      Filesize

      304KB

    • memory/2548-32-0x000000007440E000-0x000000007440F000-memory.dmp

      Filesize

      4KB

    • memory/2548-33-0x0000000074400000-0x0000000074BB0000-memory.dmp

      Filesize

      7.7MB