Overview

overview

10

Static

static

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windows10_x64

10

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windows10_x64

10

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windows10_x64

10

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windows10_x64

10

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windows7_x64

10

ﱞﱞﱞ�...ﱞﱞ

windows7_x64

10

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windows7_x64

10

ﱞﱞﱞ�...ﱞﱞ

windows7_x64

10

win102

windows10_x64

10

win102

windows10_x64

10

win102

windows10_x64

10

win102

windows10_x64

10

win104

windows10_x64

10

win104

windows10_x64

10

win104

windows10_x64

10

win104

windows10_x64

8

win105

windows10_x64

10

win105

windows10_x64

10

win105

windows10_x64

10

win105

windows10_x64

10

win106

windows10_x64

10

win106

windows10_x64

10

win106

windows10_x64

10

win106

windows10_x64

10

win103

windows10_x64

1

win103

windows10_x64

10

win103

windows10_x64

10

win103

windows10_x64

10

win101

windows10_x64

10

win101

windows10_x64

10

win101

windows10_x64

8

win101

windows10_x64

10

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
    11s
  • max time network
    71s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    04-05-2021 20:23

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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
8/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies registry class 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • c:\windows\system32\svchost.exe
    c:\windows\system32\svchost.exe -k netsvcs -s Browser
    1⤵
      PID:2936
    • C:\Users\Admin\AppData\Local\Temp\keygen-step-4d.exe
      "C:\Users\Admin\AppData\Local\Temp\keygen-step-4d.exe"
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:784
      • 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:184
        • 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:2584
      • 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
        PID:2384
    • \??\c:\windows\system32\svchost.exe
      c:\windows\system32\svchost.exe -k netsvcs -s BITS
      1⤵
      • Suspicious use of SetThreadContext
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2208
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k SystemNetworkService
        2⤵
          PID:3576

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • memory/60-142-0x00000221E1DA0000-0x00000221E1E10000-memory.dmp

        Filesize

        448KB

        Download

      • memory/2208-133-0x0000020662170000-0x0000020662172000-memory.dmp

        Filesize

        8KB

        Download

      • memory/2208-152-0x0000020662510000-0x0000020662580000-memory.dmp

        Filesize

        448KB

        Download

      • memory/2384-127-0x00000000006F0000-0x00000000006F1000-memory.dmp

        Filesize

        4KB

        Download

      • memory/2384-129-0x0000000000C00000-0x0000000000C01000-memory.dmp

        Filesize

        4KB

        Download

      • memory/2384-130-0x0000000000C10000-0x0000000000C2C000-memory.dmp

        Filesize

        112KB

        Download

      • memory/2384-131-0x0000000000C30000-0x0000000000C31000-memory.dmp

        Filesize

        4KB

        Download

      • memory/2384-141-0x000000001B4F0000-0x000000001B4F2000-memory.dmp

        Filesize

        8KB

        Download

      • memory/2484-145-0x00000297CB070000-0x00000297CB0BB000-memory.dmp

        Filesize

        300KB

        Download

      • memory/2484-147-0x00000297CB540000-0x00000297CB5B0000-memory.dmp

        Filesize

        448KB

        Download

      • memory/2584-143-0x0000000000D60000-0x0000000000DBC000-memory.dmp

        Filesize

        368KB

        Download

      • memory/2584-126-0x0000000000B60000-0x0000000000C61000-memory.dmp

        Filesize

        1.0MB

        Download