Analysis

  • max time kernel
    187s
  • max time network
    191s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-10-2022 15:41

General

  • Target

    be4fbafdadafb2cba3fb049c60366d5e063585153e5345a618e37528f401443d.exe

  • Size

    143KB

  • MD5

    7146fadada85da5c561b6a5db6593c50

  • SHA1

    7ddb7a384785c1fc830d36df9b424c1b9172ae78

  • SHA256

    be4fbafdadafb2cba3fb049c60366d5e063585153e5345a618e37528f401443d

  • SHA512

    3db8eb689c9f95bb3ac705242d15188c73a2498a04f728eb73e16af00cc03b828afb8e0ac2630f9201bee57189f0c1c3bfef650871fb09e5929ec6b27dd83d04

  • SSDEEP

    3072:HAsj8MBX8s0oXJn45tph2Zp6GyNuBvjelAqx7NNST1/0+O:HAsBZlan2ZIIhelAql21/0+O

Malware Config

Signatures

  • NetWire RAT payload 4 IoCs
  • Netwire

    Netwire is a RAT with main functionalities focused password stealing and keylogging, but also includes remote control capabilities as well.

  • Loads dropped DLL 3 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\be4fbafdadafb2cba3fb049c60366d5e063585153e5345a618e37528f401443d.exe
    "C:\Users\Admin\AppData\Local\Temp\be4fbafdadafb2cba3fb049c60366d5e063585153e5345a618e37528f401443d.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2768
    • C:\Users\Admin\AppData\Local\Temp\be4fbafdadafb2cba3fb049c60366d5e063585153e5345a618e37528f401443d.exe
      "C:\Users\Admin\AppData\Local\Temp\be4fbafdadafb2cba3fb049c60366d5e063585153e5345a618e37528f401443d.exe"
      2⤵
      • Adds Run key to start application
      PID:4868

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\catnips.dll
    Filesize

    64KB

    MD5

    d4c4fd18b18f198868635ed49d313429

    SHA1

    abc0edf259654aa4a5709a331091e5c351388966

    SHA256

    a5143753449c03d36308d9e9a799d6bd3e2bb02a601c90ff145acf3942b1e30b

    SHA512

    9b068ab27c3c1aad766eb56cc38b1abf1d995209455c396531e3d0dc62cb49e2df28f98b4249e8afeb6bdc9ae7c3207ad014c9267630c0d47df9ed6d9a265943

  • C:\Users\Admin\AppData\Local\Temp\catnips.dll
    Filesize

    64KB

    MD5

    d4c4fd18b18f198868635ed49d313429

    SHA1

    abc0edf259654aa4a5709a331091e5c351388966

    SHA256

    a5143753449c03d36308d9e9a799d6bd3e2bb02a601c90ff145acf3942b1e30b

    SHA512

    9b068ab27c3c1aad766eb56cc38b1abf1d995209455c396531e3d0dc62cb49e2df28f98b4249e8afeb6bdc9ae7c3207ad014c9267630c0d47df9ed6d9a265943

  • C:\Users\Admin\AppData\Local\Temp\nsk1FA0.tmp\System.dll
    Filesize

    11KB

    MD5

    883eff06ac96966270731e4e22817e11

    SHA1

    523c87c98236cbc04430e87ec19b977595092ac8

    SHA256

    44e5dfd551b38e886214bd6b9c8ee913c4c4d1f085a6575d97c3e892b925da82

    SHA512

    60333253342476911c84bbc1d9bf8a29f811207787fdd6107dce8d2b6e031669303f28133ffc811971ed7792087fe90fb1faabc0af4e91c298ba51e28109a390

  • memory/2768-135-0x0000000003000000-0x0000000003011000-memory.dmp
    Filesize

    68KB

  • memory/4868-137-0x0000000000000000-mapping.dmp
  • memory/4868-138-0x0000000000400000-0x000000000041E000-memory.dmp
    Filesize

    120KB

  • memory/4868-140-0x0000000000400000-0x000000000041E000-memory.dmp
    Filesize

    120KB

  • memory/4868-141-0x0000000000400000-0x000000000041E000-memory.dmp
    Filesize

    120KB

  • memory/4868-142-0x0000000000400000-0x000000000041E000-memory.dmp
    Filesize

    120KB