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Analysis

  • max time kernel
    212s
  • max time network
    333s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    04/12/2022, 11:45

General

  • Target

    d34a401fe354334c503f721eba569d9200115cf413bb0a76d336c584a13f8435.exe

  • Size

    481KB

  • MD5

    c48f179e0015278c3e1c35c23918e395

  • SHA1

    20f47f3051d785604692115c92715d6edbafa47b

  • SHA256

    d34a401fe354334c503f721eba569d9200115cf413bb0a76d336c584a13f8435

  • SHA512

    de8dc3dac71eb06134cc21bca8effdbd915fb0fbdbb404311a180498c453e53daf02a19b0c4d6953e31932a446b9212c7f85c6794e9aff8ec56e8819539db393

  • SSDEEP

    12288:DDNkFa5fF7RTX979xwJyTW7DsVpCSmGiHyJC+S8h:DJ+gF1tTyyTW7Cp13C0

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 4 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d34a401fe354334c503f721eba569d9200115cf413bb0a76d336c584a13f8435.exe
    "C:\Users\Admin\AppData\Local\Temp\d34a401fe354334c503f721eba569d9200115cf413bb0a76d336c584a13f8435.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:656
    • C:\Users\Admin\AppData\Local\Temp\d34a401fe354334c503f721eba569d9200115cf413bb0a76d336c584a13f8435.exe
      C:\Users\Admin\AppData\Local\Temp\d34a401fe354334c503f721eba569d9200115cf413bb0a76d336c584a13f8435.exe
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1616
      • C:\Users\Admin\AppData\Local\Temp\pcrypted.exe
        "C:\Users\Admin\AppData\Local\Temp\pcrypted.exe"
        3⤵
        • Executes dropped EXE
        PID:1840
      • C:\Users\Admin\AppData\Local\Temp\brute.exe
        "C:\Users\Admin\AppData\Local\Temp\brute.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1916

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\brute.exe

    Filesize

    38KB

    MD5

    1db91636706ae1b96dcfd4f6da627513

    SHA1

    cc906db45a067ba906ee3f0bfe9037758f2b925a

    SHA256

    4f9d7e8a79396191bd55cf48323038a1fcc486aa1ae32b8f2cc0ed54a3452208

    SHA512

    f515498b48c320f7da7902f9c3c641813c028a3423f688353249de62da03df57bcbdc3189d1cbbf9257acc34574bc534a1010403c4edbe0df26835b39ac53a6e

  • C:\Users\Admin\AppData\Local\Temp\pcrypted.exe

    Filesize

    73KB

    MD5

    bdbf620bc6b82316af1beb51d9596f9a

    SHA1

    58a41d2205991d093003eaa7dba6e1cf4553ac77

    SHA256

    100536f36c32d1392cfa18490cad9f490a2021c61c88cd65d14b2ceeed22be6c

    SHA512

    3b71c0023cf49b6846410598ef5f338008ed9d433031612026fa4221af1763d70e94a2e5a6c5caa60ef60ff632b602a967e2148d17682d6ab0336dd7a615d0de

  • \Users\Admin\AppData\Local\Temp\brute.exe

    Filesize

    38KB

    MD5

    1db91636706ae1b96dcfd4f6da627513

    SHA1

    cc906db45a067ba906ee3f0bfe9037758f2b925a

    SHA256

    4f9d7e8a79396191bd55cf48323038a1fcc486aa1ae32b8f2cc0ed54a3452208

    SHA512

    f515498b48c320f7da7902f9c3c641813c028a3423f688353249de62da03df57bcbdc3189d1cbbf9257acc34574bc534a1010403c4edbe0df26835b39ac53a6e

  • \Users\Admin\AppData\Local\Temp\brute.exe

    Filesize

    38KB

    MD5

    1db91636706ae1b96dcfd4f6da627513

    SHA1

    cc906db45a067ba906ee3f0bfe9037758f2b925a

    SHA256

    4f9d7e8a79396191bd55cf48323038a1fcc486aa1ae32b8f2cc0ed54a3452208

    SHA512

    f515498b48c320f7da7902f9c3c641813c028a3423f688353249de62da03df57bcbdc3189d1cbbf9257acc34574bc534a1010403c4edbe0df26835b39ac53a6e

  • \Users\Admin\AppData\Local\Temp\pcrypted.exe

    Filesize

    73KB

    MD5

    bdbf620bc6b82316af1beb51d9596f9a

    SHA1

    58a41d2205991d093003eaa7dba6e1cf4553ac77

    SHA256

    100536f36c32d1392cfa18490cad9f490a2021c61c88cd65d14b2ceeed22be6c

    SHA512

    3b71c0023cf49b6846410598ef5f338008ed9d433031612026fa4221af1763d70e94a2e5a6c5caa60ef60ff632b602a967e2148d17682d6ab0336dd7a615d0de

  • \Users\Admin\AppData\Local\Temp\pcrypted.exe

    Filesize

    73KB

    MD5

    bdbf620bc6b82316af1beb51d9596f9a

    SHA1

    58a41d2205991d093003eaa7dba6e1cf4553ac77

    SHA256

    100536f36c32d1392cfa18490cad9f490a2021c61c88cd65d14b2ceeed22be6c

    SHA512

    3b71c0023cf49b6846410598ef5f338008ed9d433031612026fa4221af1763d70e94a2e5a6c5caa60ef60ff632b602a967e2148d17682d6ab0336dd7a615d0de

  • memory/1616-59-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/1616-54-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/1616-65-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/1616-64-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/1616-58-0x00000000753F1000-0x00000000753F3000-memory.dmp

    Filesize

    8KB

  • memory/1616-56-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/1616-70-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/1840-66-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB