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Overview

overview

10

Static

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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
    1791s
  • max time network
    1802s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    17/05/2021, 12:14

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Report Analysis Logs

General

  • Target

    keygen-step-4d.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 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 26 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:868
        • C:\Windows\system32\wbem\WMIADAP.EXE
          wmiadap.exe /F /T /R
          3⤵
            PID:2012
        • C:\Windows\system32\svchost.exe
          C:\Windows\system32\svchost.exe -k SystemNetworkService
          2⤵
          • Modifies registry class
          PID:1632
      • C:\Users\Admin\AppData\Local\Temp\keygen-step-4d.exe
        "C:\Users\Admin\AppData\Local\Temp\keygen-step-4d.exe"
        1⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1088
        • 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:2040
          • 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:1936
        • 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:1904
          • C:\Windows\system32\WerFault.exe
            C:\Windows\system32\WerFault.exe -u -p 1904 -s 472
            3⤵
            • Program crash
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: GetForegroundWindowSpam
            PID:548

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • memory/548-101-0x0000000001C70000-0x0000000001C71000-memory.dmp

        Filesize

        4KB

        Download

      • memory/548-100-0x000007FEFC1D1000-0x000007FEFC1D3000-memory.dmp

        Filesize

        8KB

        Download

      • memory/868-96-0x0000000001200000-0x0000000001270000-memory.dmp

        Filesize

        448KB

        Download

      • memory/868-95-0x0000000000A30000-0x0000000000A7B000-memory.dmp

        Filesize

        300KB

        Download

      • memory/1088-59-0x0000000075DA1000-0x0000000075DA3000-memory.dmp

        Filesize

        8KB

        Download

      • memory/1632-98-0x0000000000190000-0x0000000000200000-memory.dmp

        Filesize

        448KB

        Download

      • memory/1904-89-0x00000000002E0000-0x00000000002E1000-memory.dmp

        Filesize

        4KB

        Download

      • memory/1904-88-0x00000000002C0000-0x00000000002DC000-memory.dmp

        Filesize

        112KB

        Download

      • memory/1904-86-0x00000000001B0000-0x00000000001B1000-memory.dmp

        Filesize

        4KB

        Download

      • memory/1904-94-0x000000001B150000-0x000000001B152000-memory.dmp

        Filesize

        8KB

        Download

      • memory/1904-79-0x0000000000D90000-0x0000000000D91000-memory.dmp

        Filesize

        4KB

        Download

      • memory/1936-92-0x0000000000A80000-0x0000000000B81000-memory.dmp

        Filesize

        1.0MB

        Download

      • memory/1936-93-0x00000000001C0000-0x000000000021C000-memory.dmp

        Filesize

        368KB

        Download

      • memory/1936-91-0x0000000010000000-0x0000000010002000-memory.dmp

        Filesize

        8KB

        Download