Analysis

  • max time kernel
    189s
  • max time network
    180s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 21:03

General

  • Target

    77b0ea439c327e12480ff5471a8915900cc95a1b99ab7272675a00ea3e1510f8.exe

  • Size

    255KB

  • MD5

    eaefe78dd0ca9b0d51a10039bbb94a3f

  • SHA1

    cb4a65fbebfcd5a1507d2247e213c1ff54b1b179

  • SHA256

    77b0ea439c327e12480ff5471a8915900cc95a1b99ab7272675a00ea3e1510f8

  • SHA512

    07c39f5eb8c05eda926c9403d9895836d633c8896405f7990773ee5c9854ab1598a062e4c096743c5331c765f8312a5a3c47795428bdf319850fb875aba2867a

  • SSDEEP

    3072:MMDb50WrZa8jCgae5+VQkGdUQFDxePZ2SBaQJXkNRtXlNGKaUIQW/qlQBG3mmTJd:1xlZam+akqx6YQJXcNlEHUIQeE3mmBI8

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 5 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Executes dropped EXE 5 IoCs
  • UPX packed file 23 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Windows security modification 2 TTPs 6 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Enumerates connected drives 3 TTPs 64 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Modifies WinLogon 2 TTPs 2 IoCs
  • AutoIT Executable 11 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 9 IoCs
  • Drops file in Program Files directory 14 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 20 IoCs
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of FindShellTrayWindow 18 IoCs
  • Suspicious use of SendNotifyMessage 18 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\77b0ea439c327e12480ff5471a8915900cc95a1b99ab7272675a00ea3e1510f8.exe
    "C:\Users\Admin\AppData\Local\Temp\77b0ea439c327e12480ff5471a8915900cc95a1b99ab7272675a00ea3e1510f8.exe"
    1⤵
    • Checks computer location settings
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:4000
    • C:\Windows\SysWOW64\gofrkpvatl.exe
      gofrkpvatl.exe
      2⤵
      • Modifies visibility of file extensions in Explorer
      • Modifies visiblity of hidden/system files in Explorer
      • Windows security bypass
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Windows security modification
      • Enumerates connected drives
      • Modifies WinLogon
      • Drops file in System32 directory
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:5096
      • C:\Windows\SysWOW64\gicjocqw.exe
        C:\Windows\system32\gicjocqw.exe
        3⤵
        • Executes dropped EXE
        • Enumerates connected drives
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2172
    • C:\Windows\SysWOW64\rfiljhtlpbkdkud.exe
      rfiljhtlpbkdkud.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:3824
    • C:\Windows\SysWOW64\gicjocqw.exe
      gicjocqw.exe
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:380
    • C:\Windows\SysWOW64\nytpbculqkbbl.exe
      nytpbculqkbbl.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:4300
    • C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
      "C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Windows\mydoc.rtf" /o ""
      2⤵
      • Drops file in Windows directory
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      PID:3172

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.DOC.exe

    Filesize

    255KB

    MD5

    77b6dad312d63aa9e2c6813252983daf

    SHA1

    c78d39d07228c99fe4369cdc81343138b3321e5f

    SHA256

    7089c80a9325a82fa9edc8240401e49755729d635d25a8873eb66bbfb2cb57bb

    SHA512

    cb75e175b4eee51af2ab2b74d546ae5a24e7be8aa947c35245bc32895d68d138ae85c74ec2dcfa72254838f9ef62b83cf5da6f1fdad8f851524924242dfb02cb

  • C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.DOC.exe

    Filesize

    255KB

    MD5

    878d2f691d9aebb502e92bcb520bb456

    SHA1

    0315f9edaf501303ce939c5abe68b5cbb9ce74f3

    SHA256

    b054176a852756def97c3ed6e6c7bc4d0a13d6cb1e9b6c58505637fb8016f555

    SHA512

    fedc9b27b9135d12a13ef84d4b12e41553bdb22333bac3f0f6a9676f776ab3d20c5c5f15bcc829f4c116c368189ff1567e5624f2a1b16c4ee8f00d4f178f4c30

  • C:\Windows\SysWOW64\gicjocqw.exe

    Filesize

    255KB

    MD5

    d8424b163eca9261fb4e02c6f2a4b0aa

    SHA1

    76867fcaf7460aa14d1e4b11c52bd42ba051a22b

    SHA256

    3271279070b1a38579d87456ab47ebf7e5a0633d7b776555ce912a8bee7e3f9a

    SHA512

    d446939af9f43c42d876ddcaa3165695031f916af79fa53bfe8628dd8c6045385a8d6758d267d2ee0fce2473f28879daf39df8691e19c246a9401e025711a62f

  • C:\Windows\SysWOW64\gicjocqw.exe

    Filesize

    255KB

    MD5

    d8424b163eca9261fb4e02c6f2a4b0aa

    SHA1

    76867fcaf7460aa14d1e4b11c52bd42ba051a22b

    SHA256

    3271279070b1a38579d87456ab47ebf7e5a0633d7b776555ce912a8bee7e3f9a

    SHA512

    d446939af9f43c42d876ddcaa3165695031f916af79fa53bfe8628dd8c6045385a8d6758d267d2ee0fce2473f28879daf39df8691e19c246a9401e025711a62f

  • C:\Windows\SysWOW64\gicjocqw.exe

    Filesize

    255KB

    MD5

    d8424b163eca9261fb4e02c6f2a4b0aa

    SHA1

    76867fcaf7460aa14d1e4b11c52bd42ba051a22b

    SHA256

    3271279070b1a38579d87456ab47ebf7e5a0633d7b776555ce912a8bee7e3f9a

    SHA512

    d446939af9f43c42d876ddcaa3165695031f916af79fa53bfe8628dd8c6045385a8d6758d267d2ee0fce2473f28879daf39df8691e19c246a9401e025711a62f

  • C:\Windows\SysWOW64\gofrkpvatl.exe

    Filesize

    255KB

    MD5

    298bd89bbe095964bff5aa7a30657f30

    SHA1

    14bb935dc4e7e1388b270087d04be05e3a85cef2

    SHA256

    7a8aefcefd0050e2858b0a35b9879699942693c14e2de0041a038f3e46bce946

    SHA512

    a0908020495c20f62243cc61a0990afa62b6292ed59b5d5dac60302130de4924ff62a5fab34afcffc1722924724a42a3281784f74f00d1305837272b7a6251fd

  • C:\Windows\SysWOW64\gofrkpvatl.exe

    Filesize

    255KB

    MD5

    298bd89bbe095964bff5aa7a30657f30

    SHA1

    14bb935dc4e7e1388b270087d04be05e3a85cef2

    SHA256

    7a8aefcefd0050e2858b0a35b9879699942693c14e2de0041a038f3e46bce946

    SHA512

    a0908020495c20f62243cc61a0990afa62b6292ed59b5d5dac60302130de4924ff62a5fab34afcffc1722924724a42a3281784f74f00d1305837272b7a6251fd

  • C:\Windows\SysWOW64\nytpbculqkbbl.exe

    Filesize

    255KB

    MD5

    8f36ac331b17bd093a4f69275536c388

    SHA1

    73e1a934225894612384b193e14517d278cd320b

    SHA256

    76a5a9f5fd3554765ba344c9194a44b9a0e59a9fd111d5545159c21c82a926a8

    SHA512

    2092f45e554a5abde5fe303ac39d092ab6a89950e321aeeb98edc04e86911de1bae1799e0d3d00aebadd42941979f57364128541964e82d4a9d4aa4ad5e9fe81

  • C:\Windows\SysWOW64\nytpbculqkbbl.exe

    Filesize

    255KB

    MD5

    8f36ac331b17bd093a4f69275536c388

    SHA1

    73e1a934225894612384b193e14517d278cd320b

    SHA256

    76a5a9f5fd3554765ba344c9194a44b9a0e59a9fd111d5545159c21c82a926a8

    SHA512

    2092f45e554a5abde5fe303ac39d092ab6a89950e321aeeb98edc04e86911de1bae1799e0d3d00aebadd42941979f57364128541964e82d4a9d4aa4ad5e9fe81

  • C:\Windows\SysWOW64\rfiljhtlpbkdkud.exe

    Filesize

    255KB

    MD5

    d808d304db7b551b3b8f429fe3fa94ce

    SHA1

    d860177e9cf682386c76cf2ecde3ab8648b073b0

    SHA256

    d4db9d95feed245676b671ee642fdc1cc858493571492576abbdb1982fda7137

    SHA512

    a24b010f50d86d4e206a3a4a6cf1a84a74486a96af21bd6886d07868baa6f06487d4bf0902b91ad0137de7f2c6f72b9aa47430cbe1ef9052137a7de4e0a919b9

  • C:\Windows\SysWOW64\rfiljhtlpbkdkud.exe

    Filesize

    255KB

    MD5

    d808d304db7b551b3b8f429fe3fa94ce

    SHA1

    d860177e9cf682386c76cf2ecde3ab8648b073b0

    SHA256

    d4db9d95feed245676b671ee642fdc1cc858493571492576abbdb1982fda7137

    SHA512

    a24b010f50d86d4e206a3a4a6cf1a84a74486a96af21bd6886d07868baa6f06487d4bf0902b91ad0137de7f2c6f72b9aa47430cbe1ef9052137a7de4e0a919b9

  • C:\Windows\mydoc.rtf

    Filesize

    223B

    MD5

    06604e5941c126e2e7be02c5cd9f62ec

    SHA1

    4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

    SHA256

    85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

    SHA512

    803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

  • memory/380-139-0x0000000000000000-mapping.dmp

  • memory/380-166-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/380-147-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/2172-168-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/2172-149-0x0000000000000000-mapping.dmp

  • memory/2172-153-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/3172-162-0x00007FF85FE20000-0x00007FF85FE30000-memory.dmp

    Filesize

    64KB

  • memory/3172-170-0x00007FF862150000-0x00007FF862160000-memory.dmp

    Filesize

    64KB

  • memory/3172-173-0x00007FF862150000-0x00007FF862160000-memory.dmp

    Filesize

    64KB

  • memory/3172-148-0x0000000000000000-mapping.dmp

  • memory/3172-154-0x00007FF862150000-0x00007FF862160000-memory.dmp

    Filesize

    64KB

  • memory/3172-156-0x00007FF862150000-0x00007FF862160000-memory.dmp

    Filesize

    64KB

  • memory/3172-155-0x00007FF862150000-0x00007FF862160000-memory.dmp

    Filesize

    64KB

  • memory/3172-157-0x00007FF862150000-0x00007FF862160000-memory.dmp

    Filesize

    64KB

  • memory/3172-158-0x00007FF862150000-0x00007FF862160000-memory.dmp

    Filesize

    64KB

  • memory/3172-172-0x00007FF862150000-0x00007FF862160000-memory.dmp

    Filesize

    64KB

  • memory/3172-159-0x00007FF85FE20000-0x00007FF85FE30000-memory.dmp

    Filesize

    64KB

  • memory/3172-171-0x00007FF862150000-0x00007FF862160000-memory.dmp

    Filesize

    64KB

  • memory/3824-136-0x0000000000000000-mapping.dmp

  • memory/3824-165-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/3824-146-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/4000-151-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/4000-132-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/4300-142-0x0000000000000000-mapping.dmp

  • memory/4300-167-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/4300-152-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/5096-164-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/5096-133-0x0000000000000000-mapping.dmp

  • memory/5096-143-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB