Analysis

  • max time kernel
    148s
  • 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
    07/12/2022, 06:36

General

  • Target
    7da80b66d4613f781187b6a42d3f0089b693eb377355a29ff29e6ccd921b826e.exe
  • Size 806KB
  • Sample221207-hcx35aff91
  • SHA256 7da80b66d4613f781187b6a42d3f0089b693eb377355a29ff29e6ccd921b826e
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Executes dropped EXE 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Drops file in Program Files directory 64 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.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7da80b66d4613f781187b6a42d3f0089b693eb377355a29ff29e6ccd921b826e.exe
    "C:\Users\Admin\AppData\Local\Temp\7da80b66d4613f781187b6a42d3f0089b693eb377355a29ff29e6ccd921b826e.exe"
    1⤵
    • Modifies system executable filetype association
    • Checks computer location settings
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4020
    • C:\Users\Admin\AppData\Local\Temp\3582-490\7da80b66d4613f781187b6a42d3f0089b693eb377355a29ff29e6ccd921b826e.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\7da80b66d4613f781187b6a42d3f0089b693eb377355a29ff29e6ccd921b826e.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:2436
      • C:\Program Files (x86)\GUM8AA1.tmp\GoogleUpdate.exe
        "C:\Program Files (x86)\GUM8AA1.tmp\GoogleUpdate.exe" /installsource taggedmi /install "appguid={8A69D345-D564-463C-AFF1-A69D9E530F96}&iid={04CBB3FC-E562-907D-E2F3-E36458807926}&lang=ru&browser=4&usagestats=0&appname=Google%20Chrome&needsadmin=prefers&brand=CHMA&installdataindex=nosearch-defaultbrowser"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:776

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        GOB742~1.EXE

        • Path C:\PROGRA~2\GUM8AA1.tmp\GOB742~1.EXE
        • Size 324KB
        • SHA256 c2e35376e558f3f139df8f81fbae1619c4938fbc904969c91311dab8bb30037b
        • MD5 SHA1 SHA512 SSDEEP

        GOFB2B~1.EXE

        • Path C:\PROGRA~2\GUM8AA1.tmp\GOFB2B~1.EXE
        • Size 806KB
        • SHA256 ecb2aa654fe3486d6bc041bf0045ee3496a9e34ff1fbc57c4ea14b005c5720f0
        • MD5 SHA1 SHA512 SSDEEP

        GOOGLE~2.EXE

        • Path C:\PROGRA~2\GUM8AA1.tmp\GOOGLE~2.EXE
        • Size 212KB
        • SHA256 2e6dc506ee7c1c50f85d21404c66991b56e9b36921e0eab2b35b5efbf4c09290
        • MD5 SHA1 SHA512 SSDEEP

        GOOGLE~3.EXE

        • Path C:\PROGRA~2\GUM8AA1.tmp\GOOGLE~3.EXE
        • Size 58KB
        • SHA256 f240173253f7228baea07bacd1338e6db2482dafb4df6289c20bdfb5ef610583
        • MD5 SHA1 SHA512 SSDEEP

        GOOGLE~4.EXE

        • Path C:\PROGRA~2\GUM8AA1.tmp\GOOGLE~4.EXE
        • Size 98KB
        • SHA256 7bc27fc98b0d8c181191b0535794514c850df836c01fbab10136a79c5364ff63
        • MD5 SHA1 SHA512 SSDEEP

        GoogleUpdate.exe

        • Path C:\Program Files (x86)\GUM8AA1.tmp\GoogleUpdate.exe
        • Size 113KB
        • SHA256 9c36a08d9e7932ff4da7b5f24e6b42c92f28685b8abe964c870e8d7670fd531a
        • MD5 SHA1 SHA512 SSDEEP

        GoogleUpdate.exe

        • Path C:\Program Files (x86)\GUM8AA1.tmp\GoogleUpdate.exe
        • Size 113KB
        • SHA256 9c36a08d9e7932ff4da7b5f24e6b42c92f28685b8abe964c870e8d7670fd531a
        • MD5 SHA1 SHA512 SSDEEP

        goopdate.dll

        • Path C:\Program Files (x86)\GUM8AA1.tmp\goopdate.dll
        • Size 833KB
        • SHA256 d57b5c148d8e7eae5b967312c6630771a013ff8215f10aaf23cec4329df7586c
        • MD5 SHA1 SHA512 SSDEEP

        goopdate.dll

        • Path C:\Program Files (x86)\GUM8AA1.tmp\goopdate.dll
        • Size 833KB
        • SHA256 d57b5c148d8e7eae5b967312c6630771a013ff8215f10aaf23cec4329df7586c
        • MD5 SHA1 SHA512 SSDEEP

        goopdateres_ru.dll

        • Path C:\Program Files (x86)\GUM8AA1.tmp\goopdateres_ru.dll
        • Size 28KB
        • SHA256 5b033d9f02973e22548c120b29a39e200e571376f848eb3503cdc868f1367308
        • MD5 SHA1 SHA512 SSDEEP

        7da80b66d4613f781187b6a42d3f0089b693eb377355a29ff29e6ccd921b826e.exe

        • Path C:\Users\Admin\AppData\Local\Temp\3582-490\7da80b66d4613f781187b6a42d3f0089b693eb377355a29ff29e6ccd921b826e.exe
        • Size 766KB
        • SHA256 eaddca8c0c7bd962a669d902a6e0c2d32e8aa125a564d156cf808c474fec8ba5
        • MD5 SHA1 SHA512 SSDEEP

        7da80b66d4613f781187b6a42d3f0089b693eb377355a29ff29e6ccd921b826e.exe

        • Path C:\Users\Admin\AppData\Local\Temp\3582-490\7da80b66d4613f781187b6a42d3f0089b693eb377355a29ff29e6ccd921b826e.exe
        • Size 766KB
        • SHA256 eaddca8c0c7bd962a669d902a6e0c2d32e8aa125a564d156cf808c474fec8ba5
        • MD5 SHA1 SHA512 SSDEEP