Analysis

  • max time kernel
    147s
  • max time network
    155s
  • 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, 16:27

General

  • Target

    2024-03-27_24c804f1c5d63c55558fd9092199b43a_karagany_mafia_ramnit.exe

  • Size

    311KB

  • MD5

    24c804f1c5d63c55558fd9092199b43a

  • SHA1

    cfde09ccf7f8bcc753df5cbaaca8ffc2090e283f

  • SHA256

    3e764285adea480b3fb2f685bac5a075189fd984d3619b47f6cea56fa387ed8b

  • SHA512

    4bab90870a73a5c342b1ce30a5fd01ac8e82a848753b7c1e51d89f47156cf3ed7473940fcf2eb8993db1cd3bd871f529c8261902a28ab9f96e33a0a9f661d3a4

  • SSDEEP

    6144:Obg3eugrl6p0bQWaM0EW6iZ77BAWEwrbI:yguNrl6p0b2oW6iZh8

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_24c804f1c5d63c55558fd9092199b43a_karagany_mafia_ramnit.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-27_24c804f1c5d63c55558fd9092199b43a_karagany_mafia_ramnit.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1920
    • C:\Users\Admin\AppData\Local\Temp\2024-03-27_24c804f1c5d63c55558fd9092199b43a_karagany_mafia_ramnitmgr.exe
      C:\Users\Admin\AppData\Local\Temp\2024-03-27_24c804f1c5d63c55558fd9092199b43a_karagany_mafia_ramnitmgr.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:3704
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3704 -s 540
        3⤵
        • Program crash
        PID:212
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3704 -ip 3704
    1⤵
      PID:1784

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\2024-03-27_24c804f1c5d63c55558fd9092199b43a_karagany_mafia_ramnitmgr.exe

            Filesize

            184KB

            MD5

            1d92c741bc5b2d34dcd0a0265ab54275

            SHA1

            a160982825420567c15f6c11f777cb4ccbe69bb8

            SHA256

            3aab3cf37efd4c034da13a0d7ba8725f49a21d227e05f3bba91d8d36350f4a67

            SHA512

            1da728dba6383e0e9fc51370f8fb782a15e724b57b952d952e4c719f81d517a56035b1e9496da3d7f9bf79af0a4bd5caa8a351ca60f40d637da3648224944b94

          • C:\Users\Admin\AppData\Local\Temp\~TM6E2B.tmp

            Filesize

            1.6MB

            MD5

            4f3387277ccbd6d1f21ac5c07fe4ca68

            SHA1

            e16506f662dc92023bf82def1d621497c8ab5890

            SHA256

            767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

            SHA512

            9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

          • memory/1920-0-0x0000000000020000-0x0000000000075000-memory.dmp

            Filesize

            340KB

          • memory/1920-5-0x0000000000020000-0x0000000000075000-memory.dmp

            Filesize

            340KB

          • memory/3704-7-0x0000000002170000-0x000000000219A000-memory.dmp

            Filesize

            168KB

          • memory/3704-11-0x00000000779D2000-0x00000000779D3000-memory.dmp

            Filesize

            4KB

          • memory/3704-10-0x0000000000400000-0x000000000042A000-memory.dmp

            Filesize

            168KB

          • memory/3704-12-0x00000000779D2000-0x00000000779D4000-memory.dmp

            Filesize

            8KB