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
    1770s
  • max time network
    1362s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    06-07-2021 17:53

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General

  • Target

    keygen-step-4.exe

  • Size

    4.6MB

  • MD5

    563107b1df2a00f4ec868acd9e08a205

  • SHA1

    9cb9c91d66292f5317aa50d92e38834861e9c9b7

  • SHA256

    bf2bd257dde4921ce83c7c1303fafe7f9f81e53c2775d3c373ced482b22eb8a9

  • SHA512

    99a8d247fa435c4cd95be7bc64c7dd6e382371f3a3c160aac3995fd705e4fd3f6622c23784a4ae3457c87536347d15eda3f08aa616450778a99376df540d74d1

Score
10/10
evasionpersistencespywarestealertrojanupx

Malware Config

Signatures

  • Suspicious use of NtCreateUserProcessOtherParentProcess 2 IoCs
  • Executes dropped EXE 11 IoCs
  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • Loads dropped DLL 40 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory 2 IoCs
  • Suspicious use of SetThreadContext 2 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.

  • Checks processor information in registry 2 TTPs 4 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies Internet Explorer settings 1 TTPs 35 IoCs
    adwarespyware
  • Modifies data under HKEY_USERS 29 IoCs
  • Modifies registry class 20 IoCs
  • Modifies system certificate store 2 TTPs 8 IoCs
    evasionspywaretrojan
  • NTFS ADS 3 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k netsvcs
    1⤵
    • 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:872
    • C:\Windows\system32\wbem\WMIADAP.EXE
      wmiadap.exe /F /T /R
      2⤵
        PID:1192
    • C:\Windows\system32\services.exe
      C:\Windows\system32\services.exe
      1⤵
        PID:464
        • C:\Windows\system32\svchost.exe
          C:\Windows\system32\svchost.exe -k SystemNetworkService
          2⤵
          • Checks processor information in registry
          • Modifies data under HKEY_USERS
          • Modifies registry class
          PID:888
        • C:\Windows\system32\svchost.exe
          C:\Windows\system32\svchost.exe -k SystemNetworkService
          2⤵
          • Drops file in System32 directory
          • Checks processor information in registry
          • Modifies data under HKEY_USERS
          • Modifies registry class
          PID:316
      • C:\Users\Admin\AppData\Local\Temp\keygen-step-4.exe
        "C:\Users\Admin\AppData\Local\Temp\keygen-step-4.exe"
        1⤵
        • Loads dropped DLL
        • Checks whether UAC is enabled
        • Suspicious use of WriteProcessMemory
        PID:1080
        • 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:1360
          • 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:1392
        • 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:1784
        • C:\Users\Admin\AppData\Local\Temp\RarSFX0\Install.exe
          "C:\Users\Admin\AppData\Local\Temp\RarSFX0\Install.exe"
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:1716
          • C:\Users\Admin\AppData\Local\Temp\is-EF2HP.tmp\Install.tmp
            "C:\Users\Admin\AppData\Local\Temp\is-EF2HP.tmp\Install.tmp" /SL5="$30182,235791,152064,C:\Users\Admin\AppData\Local\Temp\RarSFX0\Install.exe"
            3⤵
            • Executes dropped EXE
            • Loads dropped DLL
            PID:1916
        • C:\Users\Admin\AppData\Local\Temp\RarSFX0\filee.exe
          "C:\Users\Admin\AppData\Local\Temp\RarSFX0\filee.exe"
          2⤵
          • Executes dropped EXE
          • Modifies system certificate store
          • Suspicious use of WriteProcessMemory
          PID:960
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\system32\cmd.exe" /c ping 127.0.0.1 && del "C:\Users\Admin\AppData\Local\Temp\RarSFX0\filee.exe" >> NUL
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:1728
            • C:\Windows\SysWOW64\PING.EXE
              ping 127.0.0.1
              4⤵
              • Runs ping.exe
              PID:1760
        • C:\Users\Admin\AppData\Local\Temp\RarSFX0\jg6_6asg.exe
          "C:\Users\Admin\AppData\Local\Temp\RarSFX0\jg6_6asg.exe"
          2⤵
          • Executes dropped EXE
          PID:952
        • C:\Users\Admin\AppData\Local\Temp\RarSFX0\gaoou.exe
          "C:\Users\Admin\AppData\Local\Temp\RarSFX0\gaoou.exe"
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Adds Run key to start application
          • Modifies system certificate store
          PID:836
          • C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe
            C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe /scookiestxt C:\Users\Admin\AppData\Local\Temp\fj4ghga23_fsa.txt
            3⤵
            • Executes dropped EXE
            PID:788
          • C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe
            C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe /scookiestxt C:\Users\Admin\AppData\Local\Temp\fj4ghga23_fsa.txt
            3⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            PID:1500
          • C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe
            C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe /scookiestxt C:\Users\Admin\AppData\Local\Temp\fj4ghga23_fsa.txt
            3⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            PID:1564
          • C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe
            C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe /scookiestxt C:\Users\Admin\AppData\Local\Temp\fj4ghga23_fsa.txt
            3⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            PID:1484
      • C:\Program Files\Internet Explorer\iexplore.exe
        "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
        1⤵
        • Modifies Internet Explorer settings
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:888
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:888 CREDAT:275457 /prefetch:2
          2⤵
          • Modifies Internet Explorer settings
          • NTFS ADS
          • Suspicious use of SetWindowsHookEx
          PID:1780

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • memory/316-120-0x0000000002EE0000-0x0000000002FE5000-memory.dmp

        Filesize

        1.0MB

        Download

      • memory/316-118-0x0000000000060000-0x00000000000AC000-memory.dmp

        Filesize

        304KB

        Download

      • memory/316-119-0x0000000000490000-0x0000000000501000-memory.dmp

        Filesize

        452KB

        Download

      • memory/316-121-0x0000000001F80000-0x0000000001F9B000-memory.dmp

        Filesize

        108KB

        Download

      • memory/872-95-0x0000000000810000-0x000000000085B000-memory.dmp

        Filesize

        300KB

        Download

      • memory/872-96-0x0000000001320000-0x0000000001390000-memory.dmp

        Filesize

        448KB

        Download

      • memory/888-135-0x000007FEFBD91000-0x000007FEFBD93000-memory.dmp

        Filesize

        8KB

        Download

      • memory/888-98-0x00000000004C0000-0x0000000000530000-memory.dmp

        Filesize

        448KB

        Download

      • memory/960-127-0x0000000000080000-0x000000000008D000-memory.dmp

        Filesize

        52KB

        Download

      • memory/1080-59-0x00000000752F1000-0x00000000752F3000-memory.dmp

        Filesize

        8KB

        Download

      • memory/1392-93-0x0000000000930000-0x000000000098C000-memory.dmp

        Filesize

        368KB

        Download

      • memory/1392-92-0x0000000000820000-0x0000000000921000-memory.dmp

        Filesize

        1.0MB

        Download

      • memory/1392-91-0x0000000010000000-0x0000000010002000-memory.dmp

        Filesize

        8KB

        Download

      • memory/1716-106-0x0000000000400000-0x000000000042B000-memory.dmp

        Filesize

        172KB

        Download

      • memory/1784-88-0x00000000002D0000-0x00000000002EC000-memory.dmp

        Filesize

        112KB

        Download

      • memory/1784-85-0x0000000001270000-0x0000000001271000-memory.dmp

        Filesize

        4KB

        Download

      • memory/1784-87-0x00000000001B0000-0x00000000001B1000-memory.dmp

        Filesize

        4KB

        Download

      • memory/1784-89-0x00000000001C0000-0x00000000001C1000-memory.dmp

        Filesize

        4KB

        Download

      • memory/1784-94-0x000000001AEC0000-0x000000001AEC2000-memory.dmp

        Filesize

        8KB

        Download

      • memory/1916-116-0x0000000000240000-0x0000000000241000-memory.dmp

        Filesize

        4KB

        Download