Analysis

  • max time kernel
    173s
  • max time network
    182s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    24-01-2022 01:40

General

  • Target

    854b3cf53fce89b4398775b3f589e953c5c82f692708a4fa64b761a6813cd994.exe

  • Size

    403KB

  • MD5

    ee9c423911d2f60c3c1a7f6e0fec4754

  • SHA1

    9af221a60874ac7b7e80ee33ff6d3ad1f9b62c9a

  • SHA256

    854b3cf53fce89b4398775b3f589e953c5c82f692708a4fa64b761a6813cd994

  • SHA512

    98abb5218f35e9204f48f373adc95827a811956cb38453846ec33aac9beeb8771dadc4fd6533119ebfb0bba2730030f03514317215cfc925adafbe80f4ea7eb4

Malware Config

Signatures

  • Detect Neshta Payload 2 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Sodin,Sodinokibi,REvil

    Ransomware with advanced anti-analysis and privilege escalation functionality.

  • Sodinokibi/Revil sample 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops file in Program Files directory 53 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\854b3cf53fce89b4398775b3f589e953c5c82f692708a4fa64b761a6813cd994.exe
    "C:\Users\Admin\AppData\Local\Temp\854b3cf53fce89b4398775b3f589e953c5c82f692708a4fa64b761a6813cd994.exe"
    1⤵
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3064
    • C:\Users\Admin\AppData\Local\Temp\3582-490\854b3cf53fce89b4398775b3f589e953c5c82f692708a4fa64b761a6813cd994.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\854b3cf53fce89b4398775b3f589e953c5c82f692708a4fa64b761a6813cd994.exe"
      2⤵
      • Executes dropped EXE
      PID:1960
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1960 -s 232
        3⤵
        • Program crash
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:60

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\854b3cf53fce89b4398775b3f589e953c5c82f692708a4fa64b761a6813cd994.exe

    MD5

    6e8585f90f3ad9dec1dd1ee122981996

    SHA1

    1639b6c13117cb1c152b033f50af2872d45020cd

    SHA256

    c1a302c97d998e95a6a7743559b914bcee02e710ae274b12de792a83ddce5ca1

    SHA512

    bcb19994bf5b6d8ef7c2f027d32138af52fcbfcc545631dffba19dce2735ae8614d2a5e48474d3b83fd04c3cc72c71cbfb0d18abbfd1194c31e76bb9483cbfbc

  • C:\Users\Admin\AppData\Local\Temp\3582-490\854b3cf53fce89b4398775b3f589e953c5c82f692708a4fa64b761a6813cd994.exe

    MD5

    6e8585f90f3ad9dec1dd1ee122981996

    SHA1

    1639b6c13117cb1c152b033f50af2872d45020cd

    SHA256

    c1a302c97d998e95a6a7743559b914bcee02e710ae274b12de792a83ddce5ca1

    SHA512

    bcb19994bf5b6d8ef7c2f027d32138af52fcbfcc545631dffba19dce2735ae8614d2a5e48474d3b83fd04c3cc72c71cbfb0d18abbfd1194c31e76bb9483cbfbc

  • memory/3064-118-0x0000000005170000-0x00000000051AC000-memory.dmp

    Filesize

    240KB

  • memory/3064-119-0x0000000004FB0000-0x0000000004FBC000-memory.dmp

    Filesize

    48KB

  • memory/3064-122-0x0000000000400000-0x0000000004E4D000-memory.dmp

    Filesize

    74.3MB