Overview

overview

10

Static

static

ﱞﱞﱞ�...ﱞﱞ

windows10_x64

8

ﱞﱞﱞ�...ฺฺ

windows10_x64

10

ﱞﱞﱞ�...ﱞﱞ

windows10_x64

8

ﱞﱞﱞ�...ﱞﱞ

windows10_x64

10

ﱞﱞﱞ�...ﱞﱞ

windows7_x64

10

win102

windows10_x64

10

win104

windows10_x64

10

win105

windows10_x64

8

win106

windows10_x64

10

win101

windows10_x64

8

win100

windows10_x64

10

Resubmissions

24-05-2021 05:31

210524-b4dx7j71fj 10

21-05-2021 13:30

210521-r42mg8cghe 10

Analysis

  • max time kernel
    1793s
  • max time network
    1840s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    24-05-2021 05:31

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General

  • Target

    keygen-step-4.exe

  • Size

    5.6MB

  • MD5

    a110ce3f7366c6bb12553ea17a793110

  • SHA1

    8e10076496347d6324382f20968f3b7c8516eedf

  • SHA256

    0e63f296fdc309cb1e487cd1a549d029d2a9144b8a050db274901030dc6ec0f3

  • SHA512

    dc9103da71a1143365f3c7f39c4a316a9b9cc6e337b601a95d13d68bba777d2145d79a9d44ac96edce71775819e4d4bb2bb0cf7e49627163237ec3580b25c3cf

Score
10/10

Malware Config

Signatures

  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 13 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.

  • Modifies registry class 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Windows\system32\services.exe
    C:\Windows\system32\services.exe
    1⤵
      PID:464
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k netsvcs
        2⤵
        • Suspicious use of NtCreateUserProcessOtherParentProcess
        • Suspicious use of SetThreadContext
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:876
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k SystemNetworkService
        2⤵
        • Modifies registry class
        PID:392
    • C:\Users\Admin\AppData\Local\Temp\keygen-step-4.exe
      "C:\Users\Admin\AppData\Local\Temp\keygen-step-4.exe"
      1⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2000
      • C:\Users\Admin\AppData\Local\Temp\RarSFX0\Crack.exe
        "C:\Users\Admin\AppData\Local\Temp\RarSFX0\Crack.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:1620
        • C:\Windows\SysWOW64\rUNdlL32.eXe
          "C:\Windows\system32\rUNdlL32.eXe" "C:\Users\Admin\AppData\Local\Temp\install.dll",setuser
          3⤵
          • Loads dropped DLL
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:544
      • C:\Users\Admin\AppData\Local\Temp\RarSFX0\ABCbrow.exe
        "C:\Users\Admin\AppData\Local\Temp\RarSFX0\ABCbrow.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:1812

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/392-91-0x0000000000450000-0x00000000004C0000-memory.dmp

      Filesize

      448KB

      Download

    • memory/544-85-0x0000000010000000-0x0000000010002000-memory.dmp

      Filesize

      8KB

      Download

    • memory/544-86-0x0000000001F10000-0x0000000002011000-memory.dmp

      Filesize

      1.0MB

      Download

    • memory/544-87-0x00000000005D0000-0x000000000062C000-memory.dmp

      Filesize

      368KB

      Download

    • memory/876-88-0x0000000000AA0000-0x0000000000AEB000-memory.dmp

      Filesize

      300KB

      Download

    • memory/876-89-0x00000000010A0000-0x0000000001110000-memory.dmp

      Filesize

      448KB

      Download

    • memory/1812-92-0x0000000000390000-0x0000000000391000-memory.dmp

      Filesize

      4KB

      Download

    • memory/1812-95-0x0000000000350000-0x0000000000359000-memory.dmp

      Filesize

      36KB

      Download

    • memory/1812-96-0x00000000047E0000-0x00000000047E1000-memory.dmp

      Filesize

      4KB

      Download

    • memory/2000-59-0x0000000075511000-0x0000000075513000-memory.dmp

      Filesize

      8KB

      Download