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Analysis

  • max time kernel
    156s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/12/2022, 06:21

General

  • Target

    bf8453f1c847da3fd4385b18d1561233fef215e05a8519207e88e14ea0d977a0.exe

  • Size

    172KB

  • MD5

    e2271fbc453b32701e301007420f837a

  • SHA1

    89491dac9bbeb41bc8746b4cd898a72c475da4e8

  • SHA256

    bf8453f1c847da3fd4385b18d1561233fef215e05a8519207e88e14ea0d977a0

  • SHA512

    3f21def3512ce3c1da5f7e03db81717cfc1a398ec95d195c07f01656456e3bdb629f45b0db0bc975e8cdf8d717e12255511f4f3f6b6aa03962c57bba46850750

  • SSDEEP

    3072:MoNYnnW133uZ9nhx43Ccb1ij7Rfk1sEGga7zWTzHnXO+yK+:MoinqW9nhSScb1ij5REyWzXvyd

Score
8/10
upx

Malware Config

Signatures

  • UPX packed file 2 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.

  • Drops file in Program Files directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 35 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bf8453f1c847da3fd4385b18d1561233fef215e05a8519207e88e14ea0d977a0.exe
    "C:\Users\Admin\AppData\Local\Temp\bf8453f1c847da3fd4385b18d1561233fef215e05a8519207e88e14ea0d977a0.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:800
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" http://www.0750car.net.cn/cracksafe/tj/ctfmen.htm
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2448
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2448 CREDAT:17410 /prefetch:2
        3⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:3524

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

    Filesize

    471B

    MD5

    a1e11b6a6713dfb445339ee9dd3eea8f

    SHA1

    d6ac79e842ec2b94c5329ba195fa4f682c1ac742

    SHA256

    975d6ab3671e7e0e88ffed6a7a637d5cd16ac633b28f41f2891f30a614c8ef34

    SHA512

    1a4dacd68738bc81d3609082c899db1b5757887d191fee664a228df52f0af6db84ab6628ce52945c722e4ac8aeba856fdcf49fb177a6e4696430ceef7b83c052

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

    Filesize

    434B

    MD5

    e5f609b9f4d4cce7a33b899707edbe72

    SHA1

    0bbbe63484bd7e3a9f16c69bc104a8efd6d41dda

    SHA256

    95897d8bb29f78b3aeae0ec298b98d8a5856a551094d70e365f6c7f088443d16

    SHA512

    686f048c08f78379b09455b64e807f0b8ab4458bd5dd53167adc5906c1f271de651fd81f88f8dec2485c0ab96710f80edce374f7ab54ea87ed88534864602e17

  • memory/800-132-0x0000000000400000-0x0000000000474000-memory.dmp

    Filesize

    464KB

  • memory/800-133-0x0000000000400000-0x0000000000474000-memory.dmp

    Filesize

    464KB