Analysis

  • max time kernel
    0s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    31/12/2023, 04:34

General

  • Target

    2859ff00b4d0ecbc0075a725d0217e7d.exe

  • Size

    70KB

  • MD5

    2859ff00b4d0ecbc0075a725d0217e7d

  • SHA1

    b5e9ae069aafd2645dd8bc0e631397f13fb89f7d

  • SHA256

    71fdf0b969bb4532dd471fbd832913bba8d1be3ac16f178393bb111b4fdc152a

  • SHA512

    3b4715f406fe684c30d0f00d0f52bf5e25cc4727598b37a63cccc21acc68e5bf02e8938b25ec67b794651f4fc97fd3e9fa011175ddf519389057c96127684ebc

  • SSDEEP

    1536:Qc+E19oIzg3CJuL0gZEQ5w7x3kWM0erCdqeFPF4oEF6mQ81:RzjoIzg3Ci6uW3l8rCf781

Score
8/10

Malware Config

Signatures

  • Disables Task Manager via registry modification
  • Executes dropped EXE 1 IoCs
  • UPX packed file 5 IoCs

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

  • Drops file in Windows directory 2 IoCs
  • Runs .reg file with regedit 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2859ff00b4d0ecbc0075a725d0217e7d.exe
    "C:\Users\Admin\AppData\Local\Temp\2859ff00b4d0ecbc0075a725d0217e7d.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2368
    • C:\Windows\SysWOW64\regedit.exe
      regedit /s C:\50reg.reg
      2⤵
      • Runs .reg file with regedit
      PID:2992
    • C:\Windows\msnmsgr.exe
      C:\Windows\msnmsgr.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:2204

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • C:\50reg.reg

    Filesize

    121B

    MD5

    8c0c2a3561f09e9da4f663ebd9db06dc

    SHA1

    060cfdaa3aa592ec1bede0c4e71a6da3baf42dd4

    SHA256

    4c3f8b2bae6bd3dec43219df3845068964d4a2e398bc20a32e75d7379d0a1c03

    SHA512

    b45639591a3ad789831d6b45dd5e7e5cee5e8206f3fa225e39032e1f64d4dd3e74cd367444d615fa89259176e28cfeaa03106c87e12c45d4d5e4c9975b4a8ec8

  • C:\Windows\msnmsgr.exe

    Filesize

    70KB

    MD5

    2859ff00b4d0ecbc0075a725d0217e7d

    SHA1

    b5e9ae069aafd2645dd8bc0e631397f13fb89f7d

    SHA256

    71fdf0b969bb4532dd471fbd832913bba8d1be3ac16f178393bb111b4fdc152a

    SHA512

    3b4715f406fe684c30d0f00d0f52bf5e25cc4727598b37a63cccc21acc68e5bf02e8938b25ec67b794651f4fc97fd3e9fa011175ddf519389057c96127684ebc

  • memory/2204-17-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/2204-14-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/2368-0-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/2368-13-0x0000000003100000-0x0000000003122000-memory.dmp

    Filesize

    136KB

  • memory/2368-12-0x0000000003100000-0x0000000003122000-memory.dmp

    Filesize

    136KB

  • memory/2368-18-0x0000000003ED0000-0x0000000004F32000-memory.dmp

    Filesize

    16.4MB

  • memory/2368-23-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/2368-25-0x0000000003100000-0x0000000003122000-memory.dmp

    Filesize

    136KB