Analysis

  • max time kernel
    171s
  • max time network
    184s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/01/2024, 16:50

General

  • Target
    7d7f808e68925f4f2fa92c973fd66c85.exe
  • Size 5.7MB
  • Sample240128-vcem1aeaa3
  • SHA256 205b3ed8bb5aaa874ef73d4a47206b16a42397e7d77422936dfa6eb39f038ab6
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • nullmixer

C2
  • http://marisana.xyz/

Extracted

Family
  • smokeloader

Botnet
  • pub6

Extracted

Family
  • vidar

Version
  • 40

Botnet
  • 706

C2
  • https://lenak513.tumblr.com/

Attributes
  • profile_id

    706

Extracted

Family
  • smokeloader

Version
  • 2020

C2
  • http://aucmoney.com/upload/

  • http://thegymmum.com/upload/

  • http://atvcampingtrips.com/upload/

  • http://kuapakualaman.com/upload/

  • http://renatazarazua.com/upload/

  • http://nasufmutlu.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.

  • PrivateLoader

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

  • RisePro

    RisePro stealer is an infostealer distributed by PrivateLoader.

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Vidar Stealer 4 IoCs
  • ASPack v2.12-2.42 3 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Executes dropped EXE 11 IoCs
  • Loads dropped DLL 6 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Themida packer 1 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 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.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

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

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

  • Modifies data under HKEY_USERS 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 26 IoCs
  • Suspicious use of WriteProcessMemory 54 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\7d7f808e68925f4f2fa92c973fd66c85.exe
    "C:\Users\Admin\AppData\Local\Temp\7d7f808e68925f4f2fa92c973fd66c85.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3684
    • C:\Users\Admin\AppData\Local\Temp\setup_installer.exe
      "C:\Users\Admin\AppData\Local\Temp\setup_installer.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:3000
      • C:\Users\Admin\AppData\Local\Temp\7zS8BB72728\setup_install.exe
        "C:\Users\Admin\AppData\Local\Temp\7zS8BB72728\setup_install.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:2400
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c 80ff3a0909402a71.exe
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2424
          • C:\Users\Admin\AppData\Local\Temp\7zS8BB72728\80ff3a0909402a71.exe
            80ff3a0909402a71.exe
            5⤵
            • Executes dropped EXE
            • Suspicious use of AdjustPrivilegeToken
            PID:3756
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c 6c03f4c63e2.exe
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:3576
          • C:\Users\Admin\AppData\Local\Temp\7zS8BB72728\6c03f4c63e2.exe
            6c03f4c63e2.exe
            5⤵
            • Executes dropped EXE
            PID:3452
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 3452 -s 1164
              6⤵
              • Program crash
              PID:1472
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c b1eba6b13.exe
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:4320
          • C:\Users\Admin\AppData\Local\Temp\7zS8BB72728\b1eba6b13.exe
            b1eba6b13.exe
            5⤵
            • Executes dropped EXE
            • Checks SCSI registry key(s)
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: MapViewOfSection
            PID:2448
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c 804a234bccaae49.exe
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:3724
          • C:\Users\Admin\AppData\Local\Temp\7zS8BB72728\804a234bccaae49.exe
            804a234bccaae49.exe
            5⤵
            • Executes dropped EXE
            • Suspicious use of AdjustPrivilegeToken
            PID:3328
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c 1558c83052a066.exe
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:460
          • C:\Users\Admin\AppData\Local\Temp\7zS8BB72728\1558c83052a066.exe
            1558c83052a066.exe
            5⤵
            • Executes dropped EXE
            PID:1680
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 1680 -s 1200
              6⤵
              • Program crash
              PID:1888
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c bb7eeae46907.exe
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:3428
          • C:\Users\Admin\AppData\Local\Temp\7zS8BB72728\bb7eeae46907.exe
            bb7eeae46907.exe
            5⤵
            • Executes dropped EXE
            PID:944
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c 2a07805a6bd5.exe
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2488
          • C:\Users\Admin\AppData\Local\Temp\7zS8BB72728\2a07805a6bd5.exe
            2a07805a6bd5.exe
            5⤵
            • Checks computer location settings
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:3556
            • C:\Users\Admin\AppData\Local\Temp\7zS8BB72728\2a07805a6bd5.exe
              "C:\Users\Admin\AppData\Local\Temp\7zS8BB72728\2a07805a6bd5.exe" -a
              6⤵
              • Executes dropped EXE
              PID:1876
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c 292a72b1538a4.exe
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:5060
          • C:\Users\Admin\AppData\Local\Temp\7zS8BB72728\292a72b1538a4.exe
            292a72b1538a4.exe
            5⤵
            • Identifies VirtualBox via ACPI registry values (likely anti-VM)
            • Checks BIOS information in registry
            • Executes dropped EXE
            • Checks whether UAC is enabled
            • Suspicious use of NtSetInformationThreadHideFromDebugger
            PID:3160
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 500
          4⤵
          • Program crash
          PID:1192
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2400 -ip 2400
    1⤵
      PID:3456
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 3452 -ip 3452
      1⤵
        PID:4456
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1680 -ip 1680
        1⤵
          PID:4516
        • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
          "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
          1⤵
          • Modifies data under HKEY_USERS
          PID:3192

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              1558c83052a066.exe

              • Path C:\Users\Admin\AppData\Local\Temp\7zS8BB72728\1558c83052a066.exe
              • Size 1.6MB
              • SHA256 1cdddf182f161ab789edfcc68a0706d0b8412a9ba67a3f918fe60fab270eabff
              • MD5 SHA1 SHA512 SSDEEP

              292a72b1538a4.exe

              • Path C:\Users\Admin\AppData\Local\Temp\7zS8BB72728\292a72b1538a4.exe
              • Size 4.3MB
              • SHA256 a50dff01ab333ada57ea512332ad48453f10f664467a87dce16649ecaff44b00
              • MD5 SHA1 SHA512 SSDEEP

              2a07805a6bd5.exe

              • Path C:\Users\Admin\AppData\Local\Temp\7zS8BB72728\2a07805a6bd5.exe
              • Size 56KB
              • SHA256 9dcacda3913e30cafd92c909648b5bffde14b8e39e6adbfb15628006c0d4d3c2
              • MD5 SHA1 SHA512 SSDEEP

              6c03f4c63e2.exe

              • Path C:\Users\Admin\AppData\Local\Temp\7zS8BB72728\6c03f4c63e2.exe
              • Size 649KB
              • SHA256 f48752a18c651f67ea479410fd3cee0121edb21599c5b8ab3e343006133a66d8
              • MD5 SHA1 SHA512 SSDEEP

              804a234bccaae49.exe

              • Path C:\Users\Admin\AppData\Local\Temp\7zS8BB72728\804a234bccaae49.exe
              • Size 8KB
              • SHA256 908b275d6fc2f20e9d04e8609a9d994f7e88a429c3eb0a55d99ca1c681e17ec8
              • MD5 SHA1 SHA512 SSDEEP

              80ff3a0909402a71.exe

              • Path C:\Users\Admin\AppData\Local\Temp\7zS8BB72728\80ff3a0909402a71.exe
              • Size 165KB
              • SHA256 aeb2d203b415b00e0a23aa026862cec8e11962fdb99c6dce38fb0b018b7d8409
              • MD5 SHA1 SHA512 SSDEEP

              b1eba6b13.exe

              • Path C:\Users\Admin\AppData\Local\Temp\7zS8BB72728\b1eba6b13.exe
              • Size 313KB
              • SHA256 c4f3e59da8a6827adfbdbb04a9ec4ef8f718ad48bd9bbe70811a164fde758337
              • MD5 SHA1 SHA512 SSDEEP

              bb7eeae46907.exe

              • Path C:\Users\Admin\AppData\Local\Temp\7zS8BB72728\bb7eeae46907.exe
              • Size 241KB
              • SHA256 9e1a149370efe9814bf2cbd87acfcfa410d1769efd86a9722da4373d6716d22e
              • MD5 SHA1 SHA512 SSDEEP

              libcurl.dll

              • Path C:\Users\Admin\AppData\Local\Temp\7zS8BB72728\libcurl.dll
              • Size 218KB
              • SHA256 0de53e7be51789adaec5294346220b20f793e7f8d153a3c110a92d658760697e
              • MD5 SHA1 SHA512 SSDEEP

              libcurlpp.dll

              • Path C:\Users\Admin\AppData\Local\Temp\7zS8BB72728\libcurlpp.dll
              • Size 54KB
              • SHA256 43e86d650a68f1f91fa2f4375aff2720e934aa78fa3d33e06363122bf5a9535f
              • MD5 SHA1 SHA512 SSDEEP

              libgcc_s_dw2-1.dll

              • Path C:\Users\Admin\AppData\Local\Temp\7zS8BB72728\libgcc_s_dw2-1.dll
              • Size 113KB
              • SHA256 59a466f77584438fc3abc0f43edc0fc99d41851726827a008841f05cfe12da7e
              • MD5 SHA1 SHA512 SSDEEP

              libstdc++-6.dll

              • Path C:\Users\Admin\AppData\Local\Temp\7zS8BB72728\libstdc++-6.dll
              • Size 647KB
              • SHA256 97de47068327bb822b33c7106f9cbb489480901a6749513ef5c31d229dcaca87
              • MD5 SHA1 SHA512 SSDEEP

              libwinpthread-1.dll

              • Path C:\Users\Admin\AppData\Local\Temp\7zS8BB72728\libwinpthread-1.dll
              • Size 69KB
              • SHA256 509cb1d1443b623a02562ac760bced540e327c65157ffa938a22f75e38155723
              • MD5 SHA1 SHA512 SSDEEP

              setup_install.exe

              • Path C:\Users\Admin\AppData\Local\Temp\7zS8BB72728\setup_install.exe
              • Size 9.4MB
              • SHA256 e0be525d01fe726ea597885760bd1074930982c38e64123934bd743652b5a761
              • MD5 SHA1 SHA512 SSDEEP

              setup_installer.exe

              • Path C:\Users\Admin\AppData\Local\Temp\setup_installer.exe
              • Size 5.7MB
              • SHA256 75f6455387008a86d306dffcabd6bdd534e5c265829c02dd3b26f2ec03190abf
              • MD5 SHA1 SHA512 SSDEEP

              memory/2400-47-0x000000006B440000-0x000000006B4CF000-memory.dmp

              memory/2400-99-0x0000000000400000-0x0000000000C67000-memory.dmp

              memory/2400-52-0x000000006FE40000-0x000000006FFC6000-memory.dmp

              memory/2400-53-0x000000006FE40000-0x000000006FFC6000-memory.dmp

              memory/2400-54-0x000000006B280000-0x000000006B2A6000-memory.dmp

              memory/2400-55-0x000000006B280000-0x000000006B2A6000-memory.dmp

              memory/2400-50-0x000000006FE40000-0x000000006FFC6000-memory.dmp

              memory/2400-46-0x0000000064940000-0x0000000064959000-memory.dmp

              memory/2400-49-0x000000006B440000-0x000000006B4CF000-memory.dmp

              memory/2400-48-0x000000006B440000-0x000000006B4CF000-memory.dmp

              memory/2400-167-0x0000000064940000-0x0000000064959000-memory.dmp

              memory/2400-45-0x000000006FE40000-0x000000006FFC6000-memory.dmp

              memory/2400-42-0x000000006B440000-0x000000006B4CF000-memory.dmp

              memory/2400-43-0x0000000001600000-0x000000000168F000-memory.dmp

              memory/2400-171-0x000000006FE40000-0x000000006FFC6000-memory.dmp

              memory/2400-51-0x000000006FE40000-0x000000006FFC6000-memory.dmp

              memory/2400-101-0x000000006B280000-0x000000006B2A6000-memory.dmp

              memory/2400-100-0x0000000064940000-0x0000000064959000-memory.dmp

              memory/2400-103-0x000000006B440000-0x000000006B4CF000-memory.dmp

              memory/2400-104-0x000000006EB40000-0x000000006EB63000-memory.dmp

              memory/2400-105-0x000000006FE40000-0x000000006FFC6000-memory.dmp

              memory/2400-170-0x000000006EB40000-0x000000006EB63000-memory.dmp

              memory/2400-169-0x000000006B440000-0x000000006B4CF000-memory.dmp

              memory/2400-37-0x000000006B280000-0x000000006B2A6000-memory.dmp

              memory/2400-168-0x000000006B280000-0x000000006B2A6000-memory.dmp

              memory/2448-118-0x0000000000A20000-0x0000000000B20000-memory.dmp

              memory/2448-136-0x00000000001C0000-0x00000000001C9000-memory.dmp

              memory/2448-134-0x0000000000400000-0x0000000000905000-memory.dmp

              memory/2448-125-0x0000000000400000-0x0000000000905000-memory.dmp

              memory/2448-119-0x00000000001C0000-0x00000000001C9000-memory.dmp

              memory/3160-108-0x0000000076160000-0x0000000076250000-memory.dmp

              memory/3160-111-0x0000000076160000-0x0000000076250000-memory.dmp

              memory/3160-98-0x0000000000F10000-0x0000000001736000-memory.dmp

              memory/3160-120-0x0000000077064000-0x0000000077066000-memory.dmp

              memory/3160-107-0x0000000076160000-0x0000000076250000-memory.dmp

              memory/3160-106-0x0000000076160000-0x0000000076250000-memory.dmp

              memory/3160-109-0x0000000076160000-0x0000000076250000-memory.dmp

              memory/3160-110-0x0000000076160000-0x0000000076250000-memory.dmp

              memory/3160-163-0x0000000076160000-0x0000000076250000-memory.dmp

              memory/3160-117-0x0000000076160000-0x0000000076250000-memory.dmp

              memory/3160-162-0x0000000076160000-0x0000000076250000-memory.dmp

              memory/3160-161-0x0000000076160000-0x0000000076250000-memory.dmp

              memory/3160-160-0x0000000076160000-0x0000000076250000-memory.dmp

              memory/3160-159-0x0000000076160000-0x0000000076250000-memory.dmp

              memory/3160-158-0x0000000076160000-0x0000000076250000-memory.dmp

              memory/3160-157-0x0000000076160000-0x0000000076250000-memory.dmp

              memory/3160-115-0x0000000076160000-0x0000000076250000-memory.dmp

              memory/3328-124-0x00007FFEBCF00000-0x00007FFEBD9C1000-memory.dmp

              memory/3328-172-0x000000001B2B0000-0x000000001B2C0000-memory.dmp

              memory/3328-121-0x0000000000690000-0x0000000000698000-memory.dmp

              memory/3328-128-0x000000001B2B0000-0x000000001B2C0000-memory.dmp

              memory/3452-156-0x0000000000B00000-0x0000000000B9D000-memory.dmp

              memory/3452-114-0x0000000000B00000-0x0000000000B9D000-memory.dmp

              memory/3452-127-0x0000000000400000-0x0000000000959000-memory.dmp

              memory/3452-112-0x0000000000CE0000-0x0000000000DE0000-memory.dmp

              memory/3532-132-0x0000000002D70000-0x0000000002D86000-memory.dmp

              memory/3756-129-0x0000000000E20000-0x0000000000E26000-memory.dmp

              memory/3756-126-0x0000000000DF0000-0x0000000000E12000-memory.dmp

              memory/3756-123-0x0000000000DE0000-0x0000000000DE6000-memory.dmp

              memory/3756-122-0x0000000000510000-0x000000000053E000-memory.dmp

              memory/3756-130-0x00007FFEBCF00000-0x00007FFEBD9C1000-memory.dmp

              memory/3756-131-0x000000001B150000-0x000000001B160000-memory.dmp

              memory/3756-149-0x00007FFEBCF00000-0x00007FFEBD9C1000-memory.dmp