Overview

overview

10

Static

static

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windows10_x64

8

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windows10_x64

10

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windows10_x64

8

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windows7_x64

10

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windows7_x64

10

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windows7_x64

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windows7_x64

10

win102

windows10_x64

10

win102

windows10_x64

8

win102

windows10_x64

8

win102

windows10_x64

10

win104

windows10_x64

8

win104

windows10_x64

10

win104

windows10_x64

8

win104

windows10_x64

10

win105

windows10_x64

10

win105

windows10_x64

8

win105

windows10_x64

8

win105

windows10_x64

8

Resubmissions

12-11-2024 01:29

241112-bwgrxs1gnf 10

08-07-2021 12:18

210708-8z6d5h8z2n 10

06-07-2021 17:53

210706-g6we6sa7sa 10

19-06-2021 18:17

210619-vr8bj2dzfn 10

17-06-2021 21:39

210617-a9cvlnmrbx 10

11-06-2021 17:26

210611-wvab1yw2tj 10

08-06-2021 06:47

210608-qrbpch3y46 10

08-06-2021 06:47

210608-64tndgm1ln 10

05-06-2021 18:40

210605-cd6qpr55sx 10

04-06-2021 11:56

210604-5c416rs3ns 10

Analysis

  • max time kernel
    1799s
  • max time network
    1848s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    16-05-2021 10:08

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General

  • Target

    keygen-step-4.exe

  • Size

    4.6MB

  • MD5

    563107b1df2a00f4ec868acd9e08a205

  • SHA1

    9cb9c91d66292f5317aa50d92e38834861e9c9b7

  • SHA256

    bf2bd257dde4921ce83c7c1303fafe7f9f81e53c2775d3c373ced482b22eb8a9

  • SHA512

    99a8d247fa435c4cd95be7bc64c7dd6e382371f3a3c160aac3995fd705e4fd3f6622c23784a4ae3457c87536347d15eda3f08aa616450778a99376df540d74d1

Score
10/10

Malware Config

Signatures

  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 14 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Drops file in System32 directory 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 3 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 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 37 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Windows\system32\services.exe
    C:\Windows\system32\services.exe
    1⤵
      PID:468
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k netsvcs
        2⤵
        • Suspicious use of NtCreateUserProcessOtherParentProcess
        • Drops file in System32 directory
        • Suspicious use of SetThreadContext
        • Drops file in Windows directory
        • 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:1164
    • 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:1276
      • C:\Users\Admin\AppData\Local\Temp\RarSFX0\xiuhuali.exe
        "C:\Users\Admin\AppData\Local\Temp\RarSFX0\xiuhuali.exe"
        2⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1668
        • C:\Windows\SysWOW64\rundll32.exe
          "C:\Windows\System32\rundll32.exe" "C:\Program Files\install.dll",install
          3⤵
          • Loads dropped DLL
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:552
      • C:\Users\Admin\AppData\Local\Temp\RarSFX0\JoSetp.exe
        "C:\Users\Admin\AppData\Local\Temp\RarSFX0\JoSetp.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:864
        • C:\Windows\system32\WerFault.exe
          C:\Windows\system32\WerFault.exe -u -p 864 -s 472
          3⤵
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          PID:1488

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/552-94-0x00000000002F0000-0x000000000034C000-memory.dmp

      Filesize

      368KB

      Download

    • memory/552-93-0x0000000001D70000-0x0000000001E71000-memory.dmp

      Filesize

      1.0MB

      Download

    • memory/552-92-0x0000000010000000-0x0000000010002000-memory.dmp

      Filesize

      8KB

      Download

    • memory/864-80-0x0000000000AF0000-0x0000000000AF1000-memory.dmp

      Filesize

      4KB

      Download

    • memory/864-89-0x0000000000260000-0x000000000027C000-memory.dmp

      Filesize

      112KB

      Download

    • memory/864-90-0x0000000000240000-0x0000000000241000-memory.dmp

      Filesize

      4KB

      Download

    • memory/864-86-0x0000000000230000-0x0000000000231000-memory.dmp

      Filesize

      4KB

      Download

    • memory/864-96-0x000000001B0C0000-0x000000001B0C2000-memory.dmp

      Filesize

      8KB

      Download

    • memory/876-97-0x0000000000F90000-0x0000000001000000-memory.dmp

      Filesize

      448KB

      Download

    • memory/876-95-0x00000000008B0000-0x00000000008FB000-memory.dmp

      Filesize

      300KB

      Download

    • memory/1164-99-0x0000000000490000-0x0000000000500000-memory.dmp

      Filesize

      448KB

      Download

    • memory/1276-60-0x0000000075B31000-0x0000000075B33000-memory.dmp

      Filesize

      8KB

      Download

    • memory/1488-101-0x000007FEFC391000-0x000007FEFC393000-memory.dmp

      Filesize

      8KB

      Download

    • memory/1488-102-0x0000000000410000-0x0000000000411000-memory.dmp

      Filesize

      4KB

      Download