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Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20230712-en
  • resource tags

    arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
  • submitted
    03/08/2023, 18:41

General

  • Target

    56dba4c23ad30288349e35c50a7d9d05_cryptolocker_JC.exe

  • Size

    118KB

  • MD5

    56dba4c23ad30288349e35c50a7d9d05

  • SHA1

    58844460e6b365889419dffcf5a76073d14a58e1

  • SHA256

    67a5cb004d2dfa571833ed14cb51165023c5ece882ac1a091e3148d121991da9

  • SHA512

    78e3255b0ac406397b4fc21097b73e45fc9dad66dfc4d67eb373bc066549811c4bcd61f6b558af4e03c5c97c54a27d0715e2f0cf11bb78fc9f73a345717f7e3e

  • SSDEEP

    1536:z6QFElP6n+gKmddpMOtEvwDpj3GYQbN/PKwNgpQb6w:z6a+CdOOtEvwDpjczp

Score
7/10
upx

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 7 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\56dba4c23ad30288349e35c50a7d9d05_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\56dba4c23ad30288349e35c50a7d9d05_cryptolocker_JC.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2272
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:3012

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    118KB

    MD5

    c8c786362f3a3f052f795369e2adaaf8

    SHA1

    51b4d955a78fe161b1c6351d938b91304e08e5ff

    SHA256

    ea0cf9e084867717b20c71bcd2f79ca59a4c186d8511e2c1f7c25eb2a1cabf33

    SHA512

    d7879b8d4bace070e055c09650fcaa1af705916c6a389476eedb1e4b7b51f1ed6f2662c8e14c47de4211cb6eff1b8f478fb0c171dff565e7ef725bc8cd9a6dcf

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

    Filesize

    118KB

    MD5

    c8c786362f3a3f052f795369e2adaaf8

    SHA1

    51b4d955a78fe161b1c6351d938b91304e08e5ff

    SHA256

    ea0cf9e084867717b20c71bcd2f79ca59a4c186d8511e2c1f7c25eb2a1cabf33

    SHA512

    d7879b8d4bace070e055c09650fcaa1af705916c6a389476eedb1e4b7b51f1ed6f2662c8e14c47de4211cb6eff1b8f478fb0c171dff565e7ef725bc8cd9a6dcf

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

    Filesize

    118KB

    MD5

    c8c786362f3a3f052f795369e2adaaf8

    SHA1

    51b4d955a78fe161b1c6351d938b91304e08e5ff

    SHA256

    ea0cf9e084867717b20c71bcd2f79ca59a4c186d8511e2c1f7c25eb2a1cabf33

    SHA512

    d7879b8d4bace070e055c09650fcaa1af705916c6a389476eedb1e4b7b51f1ed6f2662c8e14c47de4211cb6eff1b8f478fb0c171dff565e7ef725bc8cd9a6dcf

  • memory/2272-56-0x0000000000420000-0x0000000000426000-memory.dmp

    Filesize

    24KB

  • memory/2272-54-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2272-67-0x0000000001F60000-0x0000000001F70000-memory.dmp

    Filesize

    64KB

  • memory/2272-57-0x0000000000490000-0x0000000000496000-memory.dmp

    Filesize

    24KB

  • memory/2272-69-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2272-55-0x0000000000420000-0x0000000000426000-memory.dmp

    Filesize

    24KB

  • memory/2272-81-0x0000000001F60000-0x0000000001F70000-memory.dmp

    Filesize

    64KB

  • memory/3012-71-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3012-73-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/3012-74-0x0000000000270000-0x0000000000276000-memory.dmp

    Filesize

    24KB

  • memory/3012-82-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB