Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-06-2024 03:08

General

  • Target

    7zFM.exe

  • Size

    557KB

  • MD5

    e2b6c32d4ed3b253ca750b03b55acad1

  • SHA1

    e630f10249f521c5802e79d6f44c67f310384ad1

  • SHA256

    a0b92392ade4ad7218239ac6a3e96ec6a626b71c187960cd077c92dc34d2330d

  • SHA512

    f2f541b3bd118d57d7fe76694a19172d8828680397d1be2a44b928059099c9ece5e58b9a1bea2dc41bd8482a6f10ceb29cb8d858b8875ce05ecb23901040aa80

  • SSDEEP

    12288:8/nNbnEtB2xMbDshgVqd9lK1aWV1/8Juw9ZL5Uvm:8/NbnEtBZbDshgVqd97WnvQUvm

Malware Config

Signatures

  • Ramnit

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

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\7zFM.exe
    "C:\Users\Admin\AppData\Local\Temp\7zFM.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3660
    • C:\Users\Admin\AppData\Local\Temp\7zFMmgr.exe
      C:\Users\Admin\AppData\Local\Temp\7zFMmgr.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:3596
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3596 -s 324
        3⤵
        • Program crash
        PID:4028
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3596 -ip 3596
    1⤵
      PID:2088

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      Filesize

      142KB

      MD5

      303f491b9fc879064b210cb0b865d178

      SHA1

      5cbdc35fb45bd3fb5ac62950ec22443a4179203c

      SHA256

      15f7fb2edc9b34e0da2fc658df38d8aea52664f6be1510dba4636dc13f466f86

      SHA512

      96c076c5027998281c408c1314e67f14c0150ec01173a400bf42e482866744d7e6f58cc7bf9748124c3a652753020f4606b170b61f1e722f8d4f74bff65fee24

    • C:\Users\Admin\AppData\Local\Temp\~TM46FC.tmp

      Filesize

      1.6MB

      MD5

      4f3387277ccbd6d1f21ac5c07fe4ca68

      SHA1

      e16506f662dc92023bf82def1d621497c8ab5890

      SHA256

      767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

      SHA512

      9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

    • memory/3596-8-0x00000000774E2000-0x00000000774E4000-memory.dmp

      Filesize

      8KB

    • memory/3596-9-0x00000000774E2000-0x00000000774E3000-memory.dmp

      Filesize

      4KB

    • memory/3660-1-0x0000000000400000-0x0000000000491000-memory.dmp

      Filesize

      580KB