Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/03/2024, 16:24

General

  • Target

    2024-03-27_008f1e2855eef601ee3c2aa5fa9a8925_karagany_mafia_ramnit.exe

  • Size

    291KB

  • MD5

    008f1e2855eef601ee3c2aa5fa9a8925

  • SHA1

    99ff6c109489bc0df445dee40ccb1c64f8e34a1f

  • SHA256

    dfa0d118b4f04d43cc6296f4858ed4caa1ac2daf70a2b1b40962a08392617984

  • SHA512

    ce2ae12a4e5c3ab419f5aa623a5a21c31d22df4e3555b44da644e5344347d53e1b65eae44d6306fb563cce5ad8e193b7f701f7f49eff36f541d895ef9e13f372

  • SSDEEP

    3072:FlzAt7oScwptXd1PS7U4j4XuKnwEVoX6NJ/2m0W6U/gi7n7GEAWAC9emIQZfDHZS:Fs7ZtXTateu3EVM0EW6iZ77BAWEwrbG

Malware Config

Signatures

  • Ramnit

    Ramnit is a versatile family that holds viruses, worms, and Trojans.

  • UPX dump on OEP (original entry point) 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 1 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-03-27_008f1e2855eef601ee3c2aa5fa9a8925_karagany_mafia_ramnit.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-27_008f1e2855eef601ee3c2aa5fa9a8925_karagany_mafia_ramnit.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2992
    • C:\Users\Admin\AppData\Local\Temp\2024-03-27_008f1e2855eef601ee3c2aa5fa9a8925_karagany_mafia_ramnitmgr.exe
      C:\Users\Admin\AppData\Local\Temp\2024-03-27_008f1e2855eef601ee3c2aa5fa9a8925_karagany_mafia_ramnitmgr.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:1344
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1344 -s 516
        3⤵
        • Program crash
        PID:4812
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 1344 -ip 1344
    1⤵
      PID:2028

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\2024-03-27_008f1e2855eef601ee3c2aa5fa9a8925_karagany_mafia_ramnitmgr.exe

            Filesize

            184KB

            MD5

            1d92c741bc5b2d34dcd0a0265ab54275

            SHA1

            a160982825420567c15f6c11f777cb4ccbe69bb8

            SHA256

            3aab3cf37efd4c034da13a0d7ba8725f49a21d227e05f3bba91d8d36350f4a67

            SHA512

            1da728dba6383e0e9fc51370f8fb782a15e724b57b952d952e4c719f81d517a56035b1e9496da3d7f9bf79af0a4bd5caa8a351ca60f40d637da3648224944b94

          • C:\Users\Admin\AppData\Local\Temp\~TM4F1A.tmp

            Filesize

            1.6MB

            MD5

            4f3387277ccbd6d1f21ac5c07fe4ca68

            SHA1

            e16506f662dc92023bf82def1d621497c8ab5890

            SHA256

            767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

            SHA512

            9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

          • memory/1344-7-0x0000000000400000-0x000000000042A000-memory.dmp

            Filesize

            168KB

          • memory/1344-11-0x0000000077AB2000-0x0000000077AB4000-memory.dmp

            Filesize

            8KB

          • memory/1344-8-0x00000000004B0000-0x00000000004DA000-memory.dmp

            Filesize

            168KB

          • memory/1344-12-0x0000000077AB2000-0x0000000077AB4000-memory.dmp

            Filesize

            8KB

          • memory/1344-13-0x0000000077AB2000-0x0000000077AB3000-memory.dmp

            Filesize

            4KB

          • memory/2992-0-0x0000000000BE0000-0x0000000000C2F000-memory.dmp

            Filesize

            316KB

          • memory/2992-5-0x0000000000BE0000-0x0000000000C2F000-memory.dmp

            Filesize

            316KB