Analysis

  • max time kernel
    24s
  • max time network
    25s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-06-2024 03:42

General

  • Target

    7zFMmgr.exe

  • Size

    286KB

  • MD5

    ae7fe5d1c0c635496c2729eba26355e0

  • SHA1

    4b4c8a79fbd911904ebfa0b26915f588b3a8b49a

  • SHA256

    b393d21a034f5cac91bcb63d6132d72f6edea162b7c919297c9d39e5b1ce42d8

  • SHA512

    06dece29658f5fb90bbf953aab89696b986efd9d4f93ae32672bd59235e3328b68bd3e2974eda07900295cc751c7f61e08b7d9ed50949b7be14d293797772a4d

  • SSDEEP

    6144:uAcCIWiyr7JHn17lTBl3+ocmQ1t274+dTc:uAQK7517lT33c1t274+dTc

Malware Config

Signatures

  • Ramnit

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

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Program crash 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7zFMmgr.exe
    "C:\Users\Admin\AppData\Local\Temp\7zFMmgr.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:4864
    • C:\Users\Admin\AppData\Local\Temp\7zFMmgrmgr.exe
      C:\Users\Admin\AppData\Local\Temp\7zFMmgrmgr.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:4112
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4112 -s 324
        3⤵
        • Program crash
        PID:3176
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4864 -s 224
      2⤵
      • Program crash
      PID:3580
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4112 -ip 4112
    1⤵
      PID:2912
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 4864 -ip 4864
      1⤵
        PID:4776

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\7zFMmgrmgr.exe

        Filesize

        142KB

        MD5

        303f491b9fc879064b210cb0b865d178

        SHA1

        5cbdc35fb45bd3fb5ac62950ec22443a4179203c

        SHA256

        15f7fb2edc9b34e0da2fc658df38d8aea52664f6be1510dba4636dc13f466f86

        SHA512

        96c076c5027998281c408c1314e67f14c0150ec01173a400bf42e482866744d7e6f58cc7bf9748124c3a652753020f4606b170b61f1e722f8d4f74bff65fee24

      • C:\Users\Admin\AppData\Local\Temp\~TM3FF7.tmp

        Filesize

        1.6MB

        MD5

        4f3387277ccbd6d1f21ac5c07fe4ca68

        SHA1

        e16506f662dc92023bf82def1d621497c8ab5890

        SHA256

        767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

        SHA512

        9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

      • memory/4112-12-0x0000000077162000-0x0000000077163000-memory.dmp

        Filesize

        4KB

      • memory/4112-11-0x0000000077162000-0x0000000077164000-memory.dmp

        Filesize

        8KB

      • memory/4864-0-0x0000000000400000-0x000000000044C000-memory.dmp

        Filesize

        304KB

      • memory/4864-14-0x0000000077162000-0x0000000077163000-memory.dmp

        Filesize

        4KB

      • memory/4864-13-0x0000000077162000-0x0000000077164000-memory.dmp

        Filesize

        8KB

      • memory/4864-15-0x0000000077162000-0x0000000077164000-memory.dmp

        Filesize

        8KB

      • memory/4864-16-0x0000000000400000-0x000000000044C000-memory.dmp

        Filesize

        304KB