Overview

overview

10

Static

static

Install.exe

windows7_x64

8

Install.exe

windows10_x64

8

Install2.exe

windows7_x64

8

Install2.exe

windows10_x64

8

keygen-step-4.exe

windows7_x64

10

keygen-step-4.exe

windows10_x64

8

keygen-step-4d.exe

windows7_x64

10

keygen-step-4d.exe

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
    1792s
  • max time network
    1804s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    08-06-2021 06:47

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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 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:464
      • 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\wbem\WMIADAP.EXE
          wmiadap.exe /F /T /R
          3⤵
            PID:1812
        • C:\Windows\system32\svchost.exe
          C:\Windows\system32\svchost.exe -k SystemNetworkService
          2⤵
          • Modifies registry class
          PID:1360
      • 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:788
        • 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:1280
          • 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:2008
        • 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:1852
          • C:\Windows\system32\WerFault.exe
            C:\Windows\system32\WerFault.exe -u -p 1852 -s 468
            3⤵
            • Program crash
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: GetForegroundWindowSpam
            PID:824

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • memory/788-59-0x0000000075451000-0x0000000075453000-memory.dmp

        Filesize

        8KB

        Download

      • memory/824-101-0x0000000002370000-0x0000000002371000-memory.dmp

        Filesize

        4KB

        Download

      • memory/824-100-0x000007FEFB7B1000-0x000007FEFB7B3000-memory.dmp

        Filesize

        8KB

        Download

      • memory/876-95-0x0000000001080000-0x00000000010CB000-memory.dmp

        Filesize

        300KB

        Download

      • memory/876-96-0x00000000016B0000-0x0000000001720000-memory.dmp

        Filesize

        448KB

        Download

      • memory/1360-98-0x0000000000480000-0x00000000004F0000-memory.dmp

        Filesize

        448KB

        Download

      • memory/1852-89-0x0000000000230000-0x0000000000231000-memory.dmp

        Filesize

        4KB

        Download

      • memory/1852-93-0x000000001ABB0000-0x000000001ABB2000-memory.dmp

        Filesize

        8KB

        Download

      • memory/1852-88-0x0000000000210000-0x000000000022C000-memory.dmp

        Filesize

        112KB

        Download

      • memory/1852-87-0x0000000000200000-0x0000000000201000-memory.dmp

        Filesize

        4KB

        Download

      • memory/1852-85-0x0000000000050000-0x0000000000051000-memory.dmp

        Filesize

        4KB

        Download

      • memory/2008-90-0x0000000010000000-0x0000000010002000-memory.dmp

        Filesize

        8KB

        Download

      • memory/2008-91-0x0000000001C80000-0x0000000001D81000-memory.dmp

        Filesize

        1.0MB

        Download

      • memory/2008-92-0x0000000001E80000-0x0000000001EDC000-memory.dmp

        Filesize

        368KB

        Download