Analysis

  • max time kernel
    21s
  • max time network
    25s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/04/2024, 00:02

General

  • Target
    setup_installer.exe
  • Size 2.6MB
  • Sample240407-abk36sff23
  • SHA256 8a1ac8fa80452bdf92dccba3b48a37286a3ccb6f2621209c699f5cb734599fa6
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • nullmixer

C2
  • http://sokiran.xyz/

Extracted

Family
  • smokeloader

Botnet
  • pub5

Extracted

Family
  • vidar

Version
  • 39.7

Botnet
  • 933

C2
  • https://shpak125.tumblr.com/

Attributes
  • profile_id

    933

Extracted

Family
  • smokeloader

Version
  • 2020

C2
  • http://conceitosseg.com/upload/

  • http://integrasidata.com/upload/

  • http://ozentekstil.com/upload/

  • http://finbelportal.com/upload/

  • http://telanganadigital.com/upload/

rc4.i32
rc4.i32

Signatures

  • NullMixer

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

  • 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 3 IoCs
  • ASPack v2.12-2.42 4 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 9 IoCs
  • Loads dropped DLL 8 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs
  • 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).

  • Program crash 4 IoCs
  • Checks SCSI registry key(s) 3 TTPs 9 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies data under HKEY_USERS 18 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 14 IoCs
  • Suspicious use of FindShellTrayWindow 50 IoCs
  • Suspicious use of SendNotifyMessage 12 IoCs
  • Suspicious use of WriteProcessMemory 48 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\setup_installer.exe
    "C:\Users\Admin\AppData\Local\Temp\setup_installer.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4696
    • C:\Users\Admin\AppData\Local\Temp\7zS85286607\setup_install.exe
      "C:\Users\Admin\AppData\Local\Temp\7zS85286607\setup_install.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1012
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c sonia_1.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2316
        • C:\Users\Admin\AppData\Local\Temp\7zS85286607\sonia_1.exe
          sonia_1.exe
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:3964
          • C:\Users\Admin\AppData\Local\Temp\7zS85286607\sonia_1.exe
            "C:\Users\Admin\AppData\Local\Temp\7zS85286607\sonia_1.exe" -a
            5⤵
            • Executes dropped EXE
            PID:3992
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c sonia_2.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4600
        • C:\Users\Admin\AppData\Local\Temp\7zS85286607\sonia_2.exe
          sonia_2.exe
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Checks SCSI registry key(s)
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          PID:4440
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 4440 -s 384
            5⤵
            • Program crash
            PID:1336
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c sonia_3.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1844
        • C:\Users\Admin\AppData\Local\Temp\7zS85286607\sonia_3.exe
          sonia_3.exe
          4⤵
          • Executes dropped EXE
          PID:3056
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 3056 -s 1060
            5⤵
            • Program crash
            PID:3396
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c sonia_4.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3272
        • C:\Users\Admin\AppData\Local\Temp\7zS85286607\sonia_4.exe
          sonia_4.exe
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          PID:5060
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c sonia_5.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4816
        • C:\Users\Admin\AppData\Local\Temp\7zS85286607\sonia_5.exe
          sonia_5.exe
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          PID:5036
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c sonia_6.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1608
        • C:\Users\Admin\AppData\Local\Temp\7zS85286607\sonia_6.exe
          sonia_6.exe
          4⤵
          • Executes dropped EXE
          PID:2288
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c sonia_7.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2700
        • C:\Users\Admin\AppData\Local\Temp\7zS85286607\sonia_7.exe
          sonia_7.exe
          4⤵
          • Executes dropped EXE
          PID:4984
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1012 -s 544
        3⤵
        • Program crash
        PID:4764
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1012 -ip 1012
    1⤵
      PID:4628
    • 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:3048
      • C:\Windows\SysWOW64\rundll32.exe
        rUNdlL32.eXe "C:\Users\Admin\AppData\Local\Temp\axhub.dll",main
        2⤵
        • Loads dropped DLL
        PID:2984
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2984 -s 600
          3⤵
          • Program crash
          PID:760
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2984 -ip 2984
      1⤵
        PID:4900
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 3056 -ip 3056
        1⤵
          PID:2924
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4440 -ip 4440
          1⤵
            PID:4904
          • C:\Windows\system32\dwm.exe
            "dwm.exe"
            1⤵
            • Checks SCSI registry key(s)
            • Enumerates system info in registry
            • Modifies data under HKEY_USERS
            • Suspicious use of AdjustPrivilegeToken
            PID:4776

          Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                libcurl.dll

                • Path C:\Users\Admin\AppData\Local\Temp\7zS85286607\libcurl.dll
                • Size 218KB
                • SHA256 0de53e7be51789adaec5294346220b20f793e7f8d153a3c110a92d658760697e
                • MD5 SHA1 SHA512 SSDEEP

                libcurlpp.dll

                • Path C:\Users\Admin\AppData\Local\Temp\7zS85286607\libcurlpp.dll
                • Size 54KB
                • SHA256 43e86d650a68f1f91fa2f4375aff2720e934aa78fa3d33e06363122bf5a9535f
                • MD5 SHA1 SHA512 SSDEEP

                libgcc_s_dw2-1.dll

                • Path C:\Users\Admin\AppData\Local\Temp\7zS85286607\libgcc_s_dw2-1.dll
                • Size 113KB
                • SHA256 59a466f77584438fc3abc0f43edc0fc99d41851726827a008841f05cfe12da7e
                • MD5 SHA1 SHA512 SSDEEP

                libstdc++-6.dll

                • Path C:\Users\Admin\AppData\Local\Temp\7zS85286607\libstdc++-6.dll
                • Size 647KB
                • SHA256 97de47068327bb822b33c7106f9cbb489480901a6749513ef5c31d229dcaca87
                • MD5 SHA1 SHA512 SSDEEP

                libwinpthread-1.dll

                • Path C:\Users\Admin\AppData\Local\Temp\7zS85286607\libwinpthread-1.dll
                • Size 69KB
                • SHA256 509cb1d1443b623a02562ac760bced540e327c65157ffa938a22f75e38155723
                • MD5 SHA1 SHA512 SSDEEP

                setup_install.exe

                • Path C:\Users\Admin\AppData\Local\Temp\7zS85286607\setup_install.exe
                • Size 290KB
                • SHA256 beb34b80c90025587cf08d99d4a58a5160f6ffe7f6b8b81b0e91ebbdc65d9669
                • MD5 SHA1 SHA512 SSDEEP

                sonia_1.txt

                • Path C:\Users\Admin\AppData\Local\Temp\7zS85286607\sonia_1.txt
                • Size 712KB
                • SHA256 a5ab29e6fc308d1fe9fd056e960d7ccd474e2d22fb6a799d07086ec715a89d9a
                • MD5 SHA1 SHA512 SSDEEP

                sonia_2.exe

                • Path C:\Users\Admin\AppData\Local\Temp\7zS85286607\sonia_2.exe
                • Size 204KB
                • SHA256 95c73f712482226ae243af49cf9fcbb54ce8e5cd1b3d95f1d352fc47834df582
                • MD5 SHA1 SHA512 SSDEEP

                sonia_3.exe

                • Path C:\Users\Admin\AppData\Local\Temp\7zS85286607\sonia_3.exe
                • Size 571KB
                • SHA256 ee0156f65ea9aea1570425e9bbf2f2c8b26d0d2043edee2e9e9c8adcca8b3108
                • MD5 SHA1 SHA512 SSDEEP

                sonia_4.txt

                • Path C:\Users\Admin\AppData\Local\Temp\7zS85286607\sonia_4.txt
                • Size 8KB
                • SHA256 09178780a1df7364d0b38580b40ccaa528c3f309bbc0239c98e61d464e8a32f7
                • MD5 SHA1 SHA512 SSDEEP

                sonia_5.txt

                • Path C:\Users\Admin\AppData\Local\Temp\7zS85286607\sonia_5.txt
                • Size 117KB
                • SHA256 979e083ec4eb19f6e1a15c0fed11a9006a6274b1aa55e525eb77a423aeb042c9
                • MD5 SHA1 SHA512 SSDEEP

                sonia_6.txt

                • Path C:\Users\Admin\AppData\Local\Temp\7zS85286607\sonia_6.txt
                • Size 1.0MB
                • SHA256 c74894fe98864ade516c9e54f2258a23ed451feadfa2de53a7c626385b549b22
                • MD5 SHA1 SHA512 SSDEEP

                sonia_7.txt

                • Path C:\Users\Admin\AppData\Local\Temp\7zS85286607\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

                memory/1012-45-0x000000006B440000-0x000000006B4CF000-memory.dmp

                memory/1012-53-0x0000000064940000-0x0000000064959000-memory.dmp

                memory/1012-55-0x000000006FE40000-0x000000006FFC6000-memory.dmp

                memory/1012-57-0x000000006B280000-0x000000006B2A6000-memory.dmp

                memory/1012-58-0x0000000000400000-0x000000000051D000-memory.dmp

                memory/1012-59-0x0000000000400000-0x000000000051D000-memory.dmp

                memory/1012-60-0x0000000000400000-0x000000000051D000-memory.dmp

                memory/1012-61-0x0000000000400000-0x000000000051D000-memory.dmp

                memory/1012-62-0x0000000000400000-0x000000000051D000-memory.dmp

                memory/1012-63-0x0000000000400000-0x000000000051D000-memory.dmp

                memory/1012-48-0x00000000007A0000-0x000000000082F000-memory.dmp

                memory/1012-50-0x000000006FE40000-0x000000006FFC6000-memory.dmp

                memory/1012-52-0x000000006FE40000-0x000000006FFC6000-memory.dmp

                memory/1012-99-0x000000006B280000-0x000000006B2A6000-memory.dmp

                memory/1012-54-0x000000006FE40000-0x000000006FFC6000-memory.dmp

                memory/1012-51-0x000000006FE40000-0x000000006FFC6000-memory.dmp

                memory/1012-32-0x0000000000400000-0x000000000051D000-memory.dmp

                memory/1012-46-0x000000006B280000-0x000000006B2A6000-memory.dmp

                memory/1012-56-0x000000006B280000-0x000000006B2A6000-memory.dmp

                memory/1012-49-0x000000006B440000-0x000000006B4CF000-memory.dmp

                memory/1012-104-0x000000006FE40000-0x000000006FFC6000-memory.dmp

                memory/1012-103-0x000000006EB40000-0x000000006EB63000-memory.dmp

                memory/1012-102-0x000000006B440000-0x000000006B4CF000-memory.dmp

                memory/1012-101-0x0000000064940000-0x0000000064959000-memory.dmp

                memory/1012-47-0x000000006B440000-0x000000006B4CF000-memory.dmp

                memory/1012-97-0x0000000000400000-0x000000000051D000-memory.dmp

                memory/3056-105-0x0000000000920000-0x0000000000A20000-memory.dmp

                memory/3056-106-0x0000000002580000-0x000000000261D000-memory.dmp

                memory/3056-122-0x0000000000400000-0x00000000008F9000-memory.dmp

                memory/3056-107-0x0000000000400000-0x00000000008F9000-memory.dmp

                memory/3316-123-0x0000000002520000-0x0000000002535000-memory.dmp

                memory/4440-100-0x0000000000400000-0x000000000089D000-memory.dmp

                memory/4440-98-0x00000000009C0000-0x00000000009C9000-memory.dmp

                memory/4440-126-0x0000000000400000-0x000000000089D000-memory.dmp

                memory/4440-92-0x0000000000A40000-0x0000000000B40000-memory.dmp

                memory/5036-85-0x0000000000D80000-0x0000000000D9E000-memory.dmp

                memory/5036-83-0x00007FF8731A0000-0x00007FF873C61000-memory.dmp

                memory/5036-112-0x00007FF8731A0000-0x00007FF873C61000-memory.dmp

                memory/5036-84-0x00000000005A0000-0x00000000005C6000-memory.dmp

                memory/5036-86-0x000000001B240000-0x000000001B250000-memory.dmp

                memory/5060-80-0x00007FF8731A0000-0x00007FF873C61000-memory.dmp

                memory/5060-81-0x00000000024B0000-0x00000000024C0000-memory.dmp

                memory/5060-76-0x0000000000290000-0x0000000000298000-memory.dmp

                memory/5060-127-0x00007FF8731A0000-0x00007FF873C61000-memory.dmp

                memory/5060-128-0x00000000024B0000-0x00000000024C0000-memory.dmp