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
    1784s
  • max time network
    1612s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    06-07-2021 17:53

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General

  • Target

    keygen-step-4d.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 30 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 8 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 64 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:884
      • 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:1504
      • 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:1568
    • C:\Users\Admin\AppData\Local\Temp\keygen-step-4d.exe
      "C:\Users\Admin\AppData\Local\Temp\keygen-step-4d.exe"
      1⤵
      • Loads dropped DLL
      • Checks whether UAC is enabled
      • Suspicious use of WriteProcessMemory
      PID:2036
      • 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:1728
        • 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:240
      • 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:912
      • 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:1824
        • C:\Users\Admin\AppData\Local\Temp\is-2V8Q1.tmp\Install.tmp
          "C:\Users\Admin\AppData\Local\Temp\is-2V8Q1.tmp\Install.tmp" /SL5="$30182,235791,152064,C:\Users\Admin\AppData\Local\Temp\RarSFX0\Install.exe"
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1664
      • 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:752
        • 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:324
          • C:\Windows\SysWOW64\PING.EXE
            ping 127.0.0.1
            4⤵
            • Runs ping.exe
            PID:1064
      • 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:664
      • 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
        • Suspicious use of WriteProcessMemory
        PID:1176
        • 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:1572
        • 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:1860
        • 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:1352
        • 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:1220
    • 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:1636
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1636 CREDAT:275457 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • NTFS ADS
        • Suspicious use of SetWindowsHookEx
        PID:1504

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/240-94-0x00000000003E0000-0x000000000043C000-memory.dmp

      Filesize

      368KB

      Download

    • memory/240-92-0x0000000010000000-0x0000000010002000-memory.dmp

      Filesize

      8KB

      Download

    • memory/240-93-0x0000000000890000-0x0000000000991000-memory.dmp

      Filesize

      1.0MB

      Download

    • memory/752-126-0x00000000000F0000-0x00000000000FD000-memory.dmp

      Filesize

      52KB

      Download

    • memory/884-95-0x0000000000BC0000-0x0000000000C0B000-memory.dmp

      Filesize

      300KB

      Download

    • memory/884-96-0x00000000015A0000-0x0000000001610000-memory.dmp

      Filesize

      448KB

      Download

    • memory/912-89-0x00000000004B0000-0x00000000004B1000-memory.dmp

      Filesize

      4KB

      Download

    • memory/912-99-0x000000001ACD0000-0x000000001ACD2000-memory.dmp

      Filesize

      8KB

      Download

    • memory/912-86-0x00000000011B0000-0x00000000011B1000-memory.dmp

      Filesize

      4KB

      Download

    • memory/912-90-0x00000000004D0000-0x00000000004EC000-memory.dmp

      Filesize

      112KB

      Download

    • memory/912-91-0x00000000004F0000-0x00000000004F1000-memory.dmp

      Filesize

      4KB

      Download

    • memory/1504-98-0x0000000000350000-0x00000000003C0000-memory.dmp

      Filesize

      448KB

      Download

    • memory/1568-120-0x0000000000480000-0x00000000004F1000-memory.dmp

      Filesize

      452KB

      Download

    • memory/1568-173-0x0000000001C20000-0x0000000001C3B000-memory.dmp

      Filesize

      108KB

      Download

    • memory/1568-119-0x0000000000060000-0x00000000000AC000-memory.dmp

      Filesize

      304KB

      Download

    • memory/1568-172-0x0000000002960000-0x0000000002A65000-memory.dmp

      Filesize

      1.0MB

      Download

    • memory/1636-134-0x000007FEFC471000-0x000007FEFC473000-memory.dmp

      Filesize

      8KB

      Download

    • memory/1664-117-0x0000000000240000-0x0000000000241000-memory.dmp

      Filesize

      4KB

      Download

    • memory/1824-107-0x0000000000400000-0x000000000042B000-memory.dmp

      Filesize

      172KB

      Download

    • memory/2036-60-0x0000000076A81000-0x0000000076A83000-memory.dmp

      Filesize

      8KB

      Download