Analysis

  • max time kernel
    147s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/01/2023, 04:16

General

  • Target
    HEUR-Trojan.Win32.Crypt.gen-e026bc9a0b7ac31a8.exe
  • Size 2.6MB
  • Sample230125-evta4seh35
  • SHA256 e026bc9a0b7ac31a86cdbbd88e2b2be5236ba81b469723007c8b3c1d9461198f
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • nullmixer

C2
  • http://sokiran.xyz/

Extracted

Family
  • vidar

Version
  • 39.7

Botnet
  • 933

C2
  • https://shpak125.tumblr.com/

Attributes
  • profile_id

    933

Signatures

  • Detects Smokeloader packer 1 IoCs
  • NullMixer

    NullMixer is a malware dropper leading to an infection chain of a wide variety of malware families.

  • PrivateLoader

    PrivateLoader is a downloader sold as a pay-per-install malware distribution service.

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Vidar Stealer 2 IoCs
  • ASPack v2.12-2.42 9 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Executes dropped EXE 10 IoCs
  • Checks computer location settings 2 TTPs 3 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 8 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 2 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 2 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 51 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\HEUR-Trojan.Win32.Crypt.gen-e026bc9a0b7ac31a8.exe
    "C:\Users\Admin\AppData\Local\Temp\HEUR-Trojan.Win32.Crypt.gen-e026bc9a0b7ac31a8.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4788
    • C:\Users\Admin\AppData\Local\Temp\setup_installer.exe
      "C:\Users\Admin\AppData\Local\Temp\setup_installer.exe"
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:4132
      • C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\setup_install.exe
        "C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\setup_install.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:4144
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c sonia_3.exe
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:3608
          • C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\sonia_3.exe
            sonia_3.exe
            5⤵
            • Executes dropped EXE
            PID:4196
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c sonia_2.exe
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:4028
          • C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\sonia_2.exe
            sonia_2.exe
            5⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Checks SCSI registry key(s)
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: MapViewOfSection
            PID:2056
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c sonia_4.exe
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:5116
          • C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\sonia_4.exe
            sonia_4.exe
            5⤵
            • Executes dropped EXE
            • Suspicious use of AdjustPrivilegeToken
            PID:5052
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c sonia_1.exe
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:5036
          • C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\sonia_1.exe
            sonia_1.exe
            5⤵
            • Executes dropped EXE
            • Checks computer location settings
            • Suspicious use of WriteProcessMemory
            PID:3044
            • C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\sonia_1.exe
              "C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\sonia_1.exe" -a
              6⤵
              • Executes dropped EXE
              PID:4120
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c sonia_5.exe
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:4732
          • C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\sonia_5.exe
            sonia_5.exe
            5⤵
            • Executes dropped EXE
            • Suspicious use of AdjustPrivilegeToken
            PID:5096
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c sonia_7.exe
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:4532
          • C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\sonia_7.exe
            sonia_7.exe
            5⤵
            • Executes dropped EXE
            PID:1008
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c sonia_6.exe
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:4452
          • C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\sonia_6.exe
            sonia_6.exe
            5⤵
            • Executes dropped EXE
            PID:4504
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4144 -s 544
          4⤵
          • Program crash
          PID:1880
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4144 -ip 4144
    1⤵
      PID:4464
    • C:\Windows\system32\rUNdlL32.eXe
      rUNdlL32.eXe "C:\Users\Admin\AppData\Local\Temp\axhub.dll",main
      1⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:3340
      • C:\Windows\SysWOW64\rundll32.exe
        rUNdlL32.eXe "C:\Users\Admin\AppData\Local\Temp\axhub.dll",main
        2⤵
        • Loads dropped DLL
        PID:1128
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1128 -s 616
          3⤵
          • Program crash
          PID:1436
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1128 -ip 1128
      1⤵
        PID:2364

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            libcurl.dll

            • Path C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\libcurl.dll
            • Size 218KB
            • SHA256 0de53e7be51789adaec5294346220b20f793e7f8d153a3c110a92d658760697e
            • MD5 SHA1 SHA512 SSDEEP

            libcurl.dll

            • Path C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\libcurl.dll
            • Size 218KB
            • SHA256 0de53e7be51789adaec5294346220b20f793e7f8d153a3c110a92d658760697e
            • MD5 SHA1 SHA512 SSDEEP

            libcurl.dll

            • Path C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\libcurl.dll
            • Size 218KB
            • SHA256 0de53e7be51789adaec5294346220b20f793e7f8d153a3c110a92d658760697e
            • MD5 SHA1 SHA512 SSDEEP

            libcurlpp.dll

            • Path C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\libcurlpp.dll
            • Size 54KB
            • SHA256 43e86d650a68f1f91fa2f4375aff2720e934aa78fa3d33e06363122bf5a9535f
            • MD5 SHA1 SHA512 SSDEEP

            libcurlpp.dll

            • Path C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\libcurlpp.dll
            • Size 54KB
            • SHA256 43e86d650a68f1f91fa2f4375aff2720e934aa78fa3d33e06363122bf5a9535f
            • MD5 SHA1 SHA512 SSDEEP

            libgcc_s_dw2-1.dll

            • Path C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\libgcc_s_dw2-1.dll
            • Size 113KB
            • SHA256 59a466f77584438fc3abc0f43edc0fc99d41851726827a008841f05cfe12da7e
            • MD5 SHA1 SHA512 SSDEEP

            libgcc_s_dw2-1.dll

            • Path C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\libgcc_s_dw2-1.dll
            • Size 113KB
            • SHA256 59a466f77584438fc3abc0f43edc0fc99d41851726827a008841f05cfe12da7e
            • MD5 SHA1 SHA512 SSDEEP

            libstdc++-6.dll

            • Path C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\libstdc++-6.dll
            • Size 647KB
            • SHA256 97de47068327bb822b33c7106f9cbb489480901a6749513ef5c31d229dcaca87
            • MD5 SHA1 SHA512 SSDEEP

            libstdc++-6.dll

            • Path C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\libstdc++-6.dll
            • Size 647KB
            • SHA256 97de47068327bb822b33c7106f9cbb489480901a6749513ef5c31d229dcaca87
            • MD5 SHA1 SHA512 SSDEEP

            libwinpthread-1.dll

            • Path C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\libwinpthread-1.dll
            • Size 69KB
            • SHA256 509cb1d1443b623a02562ac760bced540e327c65157ffa938a22f75e38155723
            • MD5 SHA1 SHA512 SSDEEP

            libwinpthread-1.dll

            • Path C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\libwinpthread-1.dll
            • Size 69KB
            • SHA256 509cb1d1443b623a02562ac760bced540e327c65157ffa938a22f75e38155723
            • MD5 SHA1 SHA512 SSDEEP

            setup_install.exe

            • Path C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\setup_install.exe
            • Size 290KB
            • SHA256 872f4ecd896965d975574927b5d997f2bb86e753269fadccc6e5116f55a7014f
            • MD5 SHA1 SHA512 SSDEEP

            setup_install.exe

            • Path C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\setup_install.exe
            • Size 290KB
            • SHA256 872f4ecd896965d975574927b5d997f2bb86e753269fadccc6e5116f55a7014f
            • MD5 SHA1 SHA512 SSDEEP

            sonia_1.exe

            • Path C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\sonia_1.exe
            • Size 712KB
            • SHA256 a5ab29e6fc308d1fe9fd056e960d7ccd474e2d22fb6a799d07086ec715a89d9a
            • MD5 SHA1 SHA512 SSDEEP

            sonia_1.exe

            • Path C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\sonia_1.exe
            • Size 712KB
            • SHA256 a5ab29e6fc308d1fe9fd056e960d7ccd474e2d22fb6a799d07086ec715a89d9a
            • MD5 SHA1 SHA512 SSDEEP

            sonia_1.txt

            • Path C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\sonia_1.txt
            • Size 712KB
            • SHA256 a5ab29e6fc308d1fe9fd056e960d7ccd474e2d22fb6a799d07086ec715a89d9a
            • MD5 SHA1 SHA512 SSDEEP

            sonia_2.exe

            • Path C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\sonia_2.exe
            • Size 205KB
            • SHA256 d4171d9e86fb6fb991fec160e242989b94f08a6e512d0c5485017ad6b3c6f7b8
            • MD5 SHA1 SHA512 SSDEEP

            sonia_2.txt

            • Path C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\sonia_2.txt
            • Size 205KB
            • SHA256 d4171d9e86fb6fb991fec160e242989b94f08a6e512d0c5485017ad6b3c6f7b8
            • MD5 SHA1 SHA512 SSDEEP

            sonia_3.exe

            • Path C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\sonia_3.exe
            • Size 571KB
            • SHA256 b825b9cfd361a7ddb674351fe427f746a5994f6770d3bedff3bcf72b675b9add
            • MD5 SHA1 SHA512 SSDEEP

            sonia_3.txt

            • Path C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\sonia_3.txt
            • Size 571KB
            • SHA256 b825b9cfd361a7ddb674351fe427f746a5994f6770d3bedff3bcf72b675b9add
            • MD5 SHA1 SHA512 SSDEEP

            sonia_4.exe

            • Path C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\sonia_4.exe
            • Size 8KB
            • SHA256 09178780a1df7364d0b38580b40ccaa528c3f309bbc0239c98e61d464e8a32f7
            • MD5 SHA1 SHA512 SSDEEP

            sonia_4.txt

            • Path C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\sonia_4.txt
            • Size 8KB
            • SHA256 09178780a1df7364d0b38580b40ccaa528c3f309bbc0239c98e61d464e8a32f7
            • MD5 SHA1 SHA512 SSDEEP

            sonia_5.exe

            • Path C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\sonia_5.exe
            • Size 106KB
            • SHA256 3004232d3f9a0f6dc33c55631df6370dbca276f9b2654c72dff2e7b6715f8f5d
            • MD5 SHA1 SHA512 SSDEEP

            sonia_5.txt

            • Path C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\sonia_5.txt
            • Size 106KB
            • SHA256 3004232d3f9a0f6dc33c55631df6370dbca276f9b2654c72dff2e7b6715f8f5d
            • MD5 SHA1 SHA512 SSDEEP

            sonia_6.exe

            • Path C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\sonia_6.exe
            • Size 1.0MB
            • SHA256 c74894fe98864ade516c9e54f2258a23ed451feadfa2de53a7c626385b549b22
            • MD5 SHA1 SHA512 SSDEEP

            sonia_6.txt

            • Path C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\sonia_6.txt
            • Size 1.0MB
            • SHA256 c74894fe98864ade516c9e54f2258a23ed451feadfa2de53a7c626385b549b22
            • MD5 SHA1 SHA512 SSDEEP

            sonia_7.exe

            • Path C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\sonia_7.exe
            • Size 244KB
            • SHA256 76ef9d99c7e37d132f6803ec46f8e2663b1cc282a5d2022946f1598965673fa1
            • MD5 SHA1 SHA512 SSDEEP

            sonia_7.txt

            • Path C:\Users\Admin\AppData\Local\Temp\7zS4206E3F6\sonia_7.txt
            • Size 244KB
            • SHA256 76ef9d99c7e37d132f6803ec46f8e2663b1cc282a5d2022946f1598965673fa1
            • MD5 SHA1 SHA512 SSDEEP

            CC4F.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\CC4F.tmp
            • Size 1.6MB
            • SHA256 767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac
            • MD5 SHA1 SHA512 SSDEEP

            axhub.dat

            • Path C:\Users\Admin\AppData\Local\Temp\axhub.dat
            • Size 552KB
            • SHA256 586339f93c9c0eed8a42829ab307f2c5381a636edbcf80df3770c27555034380
            • MD5 SHA1 SHA512 SSDEEP

            axhub.dll

            • Path C:\Users\Admin\AppData\Local\Temp\axhub.dll
            • Size 73KB
            • SHA256 8206b4b3897ca45b9e083273f616902966e57091516844906e6ae2aefe63cef1
            • MD5 SHA1 SHA512 SSDEEP

            axhub.dll

            • Path C:\Users\Admin\AppData\Local\Temp\axhub.dll
            • Size 73KB
            • SHA256 8206b4b3897ca45b9e083273f616902966e57091516844906e6ae2aefe63cef1
            • MD5 SHA1 SHA512 SSDEEP

            setup_installer.exe

            • Path C:\Users\Admin\AppData\Local\Temp\setup_installer.exe
            • Size 2.5MB
            • SHA256 4c2ca28c6ccf44bac870716a65ea78e5c735310678dd11ad99a9b0847656dbef
            • MD5 SHA1 SHA512 SSDEEP

            setup_installer.exe

            • Path C:\Users\Admin\AppData\Local\Temp\setup_installer.exe
            • Size 2.5MB
            • SHA256 4c2ca28c6ccf44bac870716a65ea78e5c735310678dd11ad99a9b0847656dbef
            • MD5 SHA1 SHA512 SSDEEP

            memory/2056-215-0x0000000000C0D000-0x0000000000C16000-memory.dmp

            memory/2056-216-0x0000000000B00000-0x0000000000B09000-memory.dmp

            memory/2056-217-0x0000000000400000-0x000000000089D000-memory.dmp

            memory/2056-221-0x0000000000400000-0x000000000089D000-memory.dmp

            memory/4144-166-0x0000000000400000-0x000000000051D000-memory.dmp

            memory/4144-153-0x000000006B280000-0x000000006B2A6000-memory.dmp

            memory/4144-154-0x000000006FE40000-0x000000006FFC6000-memory.dmp

            memory/4144-152-0x000000006B440000-0x000000006B4CF000-memory.dmp

            memory/4144-151-0x0000000000400000-0x000000000051D000-memory.dmp

            memory/4144-150-0x000000006B440000-0x000000006B4CF000-memory.dmp

            memory/4144-163-0x000000006B280000-0x000000006B2A6000-memory.dmp

            memory/4144-164-0x0000000000400000-0x000000000051D000-memory.dmp

            memory/4144-156-0x000000006B440000-0x000000006B4CF000-memory.dmp

            memory/4144-158-0x00000000007A0000-0x000000000082F000-memory.dmp

            memory/4144-165-0x0000000000400000-0x000000000051D000-memory.dmp

            memory/4144-149-0x000000006B440000-0x000000006B4CF000-memory.dmp

            memory/4144-167-0x0000000000400000-0x000000000051D000-memory.dmp

            memory/4144-155-0x000000006FE40000-0x000000006FFC6000-memory.dmp

            memory/4144-168-0x0000000000400000-0x000000000051D000-memory.dmp

            memory/4144-169-0x0000000000400000-0x000000000051D000-memory.dmp

            memory/4144-157-0x000000006FE40000-0x000000006FFC6000-memory.dmp

            memory/4144-209-0x0000000064940000-0x0000000064959000-memory.dmp

            memory/4144-161-0x000000006B280000-0x000000006B2A6000-memory.dmp

            memory/4144-208-0x000000006FE40000-0x000000006FFC6000-memory.dmp

            memory/4144-162-0x0000000064940000-0x0000000064959000-memory.dmp

            memory/4144-160-0x000000006FE40000-0x000000006FFC6000-memory.dmp

            memory/4144-207-0x000000006B440000-0x000000006B4CF000-memory.dmp

            memory/4144-206-0x000000006B280000-0x000000006B2A6000-memory.dmp

            memory/4144-204-0x0000000000400000-0x000000000051D000-memory.dmp

            memory/4196-223-0x0000000000B9D000-0x0000000000C01000-memory.dmp

            memory/4196-219-0x0000000000AC0000-0x0000000000B5D000-memory.dmp

            memory/4196-218-0x0000000000B9D000-0x0000000000C01000-memory.dmp

            memory/4196-220-0x0000000000400000-0x00000000008F9000-memory.dmp

            memory/5052-194-0x0000000000F60000-0x0000000000F68000-memory.dmp

            memory/5052-222-0x00007FFAE3890000-0x00007FFAE4351000-memory.dmp

            memory/5052-202-0x00007FFAE3890000-0x00007FFAE4351000-memory.dmp

            memory/5096-197-0x0000000000F60000-0x0000000000F82000-memory.dmp

            memory/5096-203-0x00007FFAE3890000-0x00007FFAE4351000-memory.dmp

            memory/5096-205-0x00007FFAE3890000-0x00007FFAE4351000-memory.dmp