Analysis

  • max time kernel
    151s
  • max time network
    157s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    28/01/2024, 16:50

General

  • Target
    setup_installer.exe
  • Size 5.7MB
  • Sample240128-vcem1aeaa3
  • SHA256 75f6455387008a86d306dffcabd6bdd534e5c265829c02dd3b26f2ec03190abf
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • nullmixer

C2
  • http://marisana.xyz/

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

Extracted

Family
  • smokeloader

Botnet
  • pub6

Signatures

  • Detect ZGRat V1 1 IoCs
  • Modifies Windows Defender Real-time Protection settings 3 TTPs 7 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.

  • RisePro

    RisePro stealer is an infostealer distributed by PrivateLoader.

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • ZGRat

    ZGRat is remote access trojan written in C#.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 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 1 IoCs

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

  • Executes dropped EXE 10 IoCs
  • Loads dropped DLL 43 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Themida packer 2 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 4 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 2 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Modifies system certificate store 2 TTPs 11 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 64 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\setup_installer.exe
    "C:\Users\Admin\AppData\Local\Temp\setup_installer.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1984
    • C:\Users\Admin\AppData\Local\Temp\7zS0C70D2B6\setup_install.exe
      "C:\Users\Admin\AppData\Local\Temp\7zS0C70D2B6\setup_install.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2784
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c 80ff3a0909402a71.exe
        3⤵
        • Loads dropped DLL
        PID:2604
        • C:\Users\Admin\AppData\Local\Temp\7zS0C70D2B6\80ff3a0909402a71.exe
          80ff3a0909402a71.exe
          4⤵
          • Executes dropped EXE
          • Modifies system certificate store
          • Suspicious use of AdjustPrivilegeToken
          PID:1164
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c 6c03f4c63e2.exe
        3⤵
        • Loads dropped DLL
        PID:2624
        • C:\Users\Admin\AppData\Local\Temp\7zS0C70D2B6\6c03f4c63e2.exe
          6c03f4c63e2.exe
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Modifies system certificate store
          PID:2864
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 2864 -s 984
            5⤵
            • Loads dropped DLL
            • Program crash
            PID:2376
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c 292a72b1538a4.exe
        3⤵
        • Loads dropped DLL
        PID:1064
        • C:\Users\Admin\AppData\Local\Temp\7zS0C70D2B6\292a72b1538a4.exe
          292a72b1538a4.exe
          4⤵
          • Identifies VirtualBox via ACPI registry values (likely anti-VM)
          • Checks BIOS information in registry
          • Executes dropped EXE
          • Loads dropped DLL
          • Checks whether UAC is enabled
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • Suspicious use of AdjustPrivilegeToken
          PID:1244
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c b1eba6b13.exe
        3⤵
        • Loads dropped DLL
        PID:2968
        • C:\Users\Admin\AppData\Local\Temp\7zS0C70D2B6\b1eba6b13.exe
          b1eba6b13.exe
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Checks SCSI registry key(s)
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          PID:1728
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c 2a07805a6bd5.exe
        3⤵
        • Loads dropped DLL
        PID:2072
        • C:\Users\Admin\AppData\Local\Temp\7zS0C70D2B6\2a07805a6bd5.exe
          2a07805a6bd5.exe
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2552
          • C:\Users\Admin\AppData\Local\Temp\7zS0C70D2B6\2a07805a6bd5.exe
            "C:\Users\Admin\AppData\Local\Temp\7zS0C70D2B6\2a07805a6bd5.exe" -a
            5⤵
            • Executes dropped EXE
            • Loads dropped DLL
            PID:2076
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c bb7eeae46907.exe
        3⤵
        • Loads dropped DLL
        PID:3036
        • C:\Users\Admin\AppData\Local\Temp\7zS0C70D2B6\bb7eeae46907.exe
          bb7eeae46907.exe
          4⤵
          • Executes dropped EXE
          PID:2520
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c 804a234bccaae49.exe
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:456
        • C:\Users\Admin\AppData\Local\Temp\7zS0C70D2B6\804a234bccaae49.exe
          804a234bccaae49.exe
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          PID:1460
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c 1558c83052a066.exe
        3⤵
        • Loads dropped DLL
        PID:2400
        • C:\Users\Admin\AppData\Local\Temp\7zS0C70D2B6\1558c83052a066.exe
          1558c83052a066.exe
          4⤵
          • Modifies Windows Defender Real-time Protection settings
          • Checks computer location settings
          • Executes dropped EXE
          • Loads dropped DLL
          • Modifies system certificate store
          PID:1708
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2784 -s 420
        3⤵
        • Loads dropped DLL
        • Program crash
        PID:2392

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 344B
        • SHA256 096b425fb091eeb1fbf79368c71c88d2c55d1cd32be08256d9ff6bd20495881a
        • MD5 SHA1 SHA512

        1558c83052a066.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7zS0C70D2B6\1558c83052a066.exe
        • Size 1.6MB
        • SHA256 1cdddf182f161ab789edfcc68a0706d0b8412a9ba67a3f918fe60fab270eabff
        • MD5 SHA1 SHA512 SSDEEP

        292a72b1538a4.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7zS0C70D2B6\292a72b1538a4.exe
        • Size 4.3MB
        • SHA256 a50dff01ab333ada57ea512332ad48453f10f664467a87dce16649ecaff44b00
        • MD5 SHA1 SHA512 SSDEEP

        bb7eeae46907.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7zS0C70D2B6\bb7eeae46907.exe
        • Size 241KB
        • SHA256 9e1a149370efe9814bf2cbd87acfcfa410d1769efd86a9722da4373d6716d22e
        • MD5 SHA1 SHA512 SSDEEP

        libcurlpp.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7zS0C70D2B6\libcurlpp.dll
        • Size 54KB
        • SHA256 43e86d650a68f1f91fa2f4375aff2720e934aa78fa3d33e06363122bf5a9535f
        • MD5 SHA1 SHA512 SSDEEP

        libgcc_s_dw2-1.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7zS0C70D2B6\libgcc_s_dw2-1.dll
        • Size 113KB
        • SHA256 59a466f77584438fc3abc0f43edc0fc99d41851726827a008841f05cfe12da7e
        • MD5 SHA1 SHA512 SSDEEP

        libwinpthread-1.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7zS0C70D2B6\libwinpthread-1.dll
        • Size 69KB
        • SHA256 509cb1d1443b623a02562ac760bced540e327c65157ffa938a22f75e38155723
        • MD5 SHA1 SHA512 SSDEEP

        CabDAD7.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\CabDAD7.tmp
        • Size 65KB
        • SHA256 c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d
        • MD5 SHA1 SHA512 SSDEEP

        TarDC02.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\TarDC02.tmp
        • Size 171KB
        • SHA256 4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f
        • MD5 SHA1 SHA512 SSDEEP

        2a07805a6bd5.exe

        • Path \Users\Admin\AppData\Local\Temp\7zS0C70D2B6\2a07805a6bd5.exe
        • Size 56KB
        • SHA256 9dcacda3913e30cafd92c909648b5bffde14b8e39e6adbfb15628006c0d4d3c2
        • MD5 SHA1 SHA512 SSDEEP

        6c03f4c63e2.exe

        • Path \Users\Admin\AppData\Local\Temp\7zS0C70D2B6\6c03f4c63e2.exe
        • Size 649KB
        • SHA256 f48752a18c651f67ea479410fd3cee0121edb21599c5b8ab3e343006133a66d8
        • MD5 SHA1 SHA512 SSDEEP

        804a234bccaae49.exe

        • Path \Users\Admin\AppData\Local\Temp\7zS0C70D2B6\804a234bccaae49.exe
        • Size 8KB
        • SHA256 908b275d6fc2f20e9d04e8609a9d994f7e88a429c3eb0a55d99ca1c681e17ec8
        • MD5 SHA1 SHA512 SSDEEP

        80ff3a0909402a71.exe

        • Path \Users\Admin\AppData\Local\Temp\7zS0C70D2B6\80ff3a0909402a71.exe
        • Size 165KB
        • SHA256 aeb2d203b415b00e0a23aa026862cec8e11962fdb99c6dce38fb0b018b7d8409
        • MD5 SHA1 SHA512 SSDEEP

        b1eba6b13.exe

        • Path \Users\Admin\AppData\Local\Temp\7zS0C70D2B6\b1eba6b13.exe
        • Size 313KB
        • SHA256 c4f3e59da8a6827adfbdbb04a9ec4ef8f718ad48bd9bbe70811a164fde758337
        • MD5 SHA1 SHA512 SSDEEP

        libcurl.dll

        • Path \Users\Admin\AppData\Local\Temp\7zS0C70D2B6\libcurl.dll
        • Size 218KB
        • SHA256 0de53e7be51789adaec5294346220b20f793e7f8d153a3c110a92d658760697e
        • MD5 SHA1 SHA512 SSDEEP

        libstdc++-6.dll

        • Path \Users\Admin\AppData\Local\Temp\7zS0C70D2B6\libstdc++-6.dll
        • Size 647KB
        • SHA256 97de47068327bb822b33c7106f9cbb489480901a6749513ef5c31d229dcaca87
        • MD5 SHA1 SHA512 SSDEEP

        setup_install.exe

        • Path \Users\Admin\AppData\Local\Temp\7zS0C70D2B6\setup_install.exe
        • Size 9.4MB
        • SHA256 e0be525d01fe726ea597885760bd1074930982c38e64123934bd743652b5a761
        • MD5 SHA1 SHA512 SSDEEP

        memory/1164-143-0x0000000000250000-0x0000000000256000-memory.dmp

        memory/1164-112-0x0000000000DB0000-0x0000000000DDE000-memory.dmp

        memory/1164-315-0x000007FEF5460000-0x000007FEF5E4C000-memory.dmp

        memory/1164-141-0x00000000002E0000-0x0000000000302000-memory.dmp

        memory/1164-132-0x0000000000240000-0x0000000000246000-memory.dmp

        memory/1244-153-0x0000000000B10000-0x0000000001336000-memory.dmp

        memory/1268-155-0x0000000002B40000-0x0000000002B56000-memory.dmp

        memory/1460-113-0x0000000000900000-0x0000000000908000-memory.dmp

        memory/1728-156-0x0000000000400000-0x0000000000905000-memory.dmp

        memory/1728-168-0x00000000003D0000-0x00000000003D9000-memory.dmp

        memory/1728-167-0x0000000000AF7000-0x0000000000B07000-memory.dmp

        memory/2784-45-0x000000006FE40000-0x000000006FFC6000-memory.dmp

        memory/2784-47-0x000000006B280000-0x000000006B2A6000-memory.dmp

        memory/2784-40-0x000000006B440000-0x000000006B4CF000-memory.dmp

        memory/2784-44-0x000000006FE40000-0x000000006FFC6000-memory.dmp

        memory/2784-43-0x000000006FE40000-0x000000006FFC6000-memory.dmp

        memory/2784-41-0x000000006B440000-0x000000006B4CF000-memory.dmp

        memory/2784-39-0x000000006B440000-0x000000006B4CF000-memory.dmp

        memory/2784-31-0x000000006B440000-0x000000006B4CF000-memory.dmp

        memory/2784-28-0x000000006B280000-0x000000006B2A6000-memory.dmp

        memory/2784-46-0x000000006B280000-0x000000006B2A6000-memory.dmp

        memory/2784-42-0x000000006FE40000-0x000000006FFC6000-memory.dmp