Overview

overview

10

Static

static

1

Petya.dll

windows7-x64

10

Petya.dll

windows10-2004-x64

10

Analysis

  • max time kernel
    151s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/05/2024, 05:30

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General

  • Target

    Petya.dll

  • Size

    353KB

  • MD5

    71b6a493388e7d0b40c83ce903bc6b04

  • SHA1

    34f917aaba5684fbe56d3c57d48ef2a1aa7cf06d

  • SHA256

    027cc450ef5f8c5f653329641ec1fed91f694e0d229928963b30f6b0d7d3a745

  • SHA512

    072205eca5099d9269f358fe534b370ff21a4f12d7938d6d2e2713f69310f0698e53b8aff062849f0b2a521f68bee097c1840993825d2a5a3aa8cf4145911c6f

  • SSDEEP

    6144:y/Bt80VmNTBo/x95ZjAetGDN3VFNq7pC+9OqFoK30b3ni5rdQY/CdUOs2:y/X4NTS/x9jNG+w+9OqFoK323qdQYKUG

Score
10/10
mimikatzbootkitpersistencespywarestealer

Malware Config

Signatures

  • Mimikatz

    mimikatz is an open source tool to dump credentials on Windows.

    mimikatz
  • mimikatz is an open source tool to dump credentials on Windows 1 IoCs
  • Deletes itself 1 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.

    spywarestealer
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

    bootkitpersistence
  • Drops file in Program Files directory 57 IoCs
  • Drops file in Windows directory 2 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistence
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\Petya.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4888
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\Petya.dll,#1
      2⤵
      • Deletes itself
      • Writes to the Master Boot Record (MBR)
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:956
      • C:\Windows\SysWOW64\cmd.exe
        /c schtasks /Create /SC once /TN "" /TR "C:\Windows\system32\shutdown.exe /r /f" /ST 06:34
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4676
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks /Create /SC once /TN "" /TR "C:\Windows\system32\shutdown.exe /r /f" /ST 06:34
          4⤵
          • Creates scheduled task(s)
          PID:228
      • C:\Users\Admin\AppData\Local\Temp\2E4E.tmp
        "C:\Users\Admin\AppData\Local\Temp\2E4E.tmp" \\.\pipe\{5C435253-6F26-4CAF-88DD-3055DCF37AA1}
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3640
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1416 --field-trial-handle=3240,i,13319578961094268484,16557498665191861597,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:904

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\2E4E.tmp
      Filesize

      55KB

      MD5

      7e37ab34ecdcc3e77e24522ddfd4852d

      SHA1

      38e2855e11e353cedf9a8a4f2f2747f1c5c07fcf

      SHA256

      02ef73bd2458627ed7b397ec26ee2de2e92c71a0e7588f78734761d8edbdcd9f

      SHA512

      1b037a2aa8bf951d2ffe2f724aa0b2fbb39c2173215806ba0327bda7b096301d887f9bb7db46f9e04584b16aa6b1aaeaf67f0ecf5f20eb02ceac27c8753ca587

      Download Submit

    • memory/956-0-0x0000000000D90000-0x0000000000DEE000-memory.dmp

      Filesize

      376KB

      Download

    • memory/956-8-0x0000000000D90000-0x0000000000DEE000-memory.dmp

      Filesize

      376KB

      Download

    • memory/956-9-0x0000000000D90000-0x0000000000DEE000-memory.dmp

      Filesize

      376KB

      Download

    • memory/956-11-0x0000000000D90000-0x0000000000DEE000-memory.dmp

      Filesize

      376KB

      Download

    • memory/956-22-0x0000000000D90000-0x0000000000DEE000-memory.dmp

      Filesize

      376KB

      Download