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Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20230712-en
  • resource tags

    arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
  • submitted
    15/07/2023, 11:00

General

  • Target

    3b46fd285baa2cexeexe_JC.exe

  • Size

    100KB

  • MD5

    3b46fd285baa2cb5e101123d6182b0ca

  • SHA1

    dead4426af154b7793d520d0104cb471f3daadac

  • SHA256

    d5cf1bb72a32d9affc39699e947e287bdca361501f6578d7066b06ad5b8e8a04

  • SHA512

    f25f3816db12a25b0b673f9cd2b141616fdf296708a15a7278804d37a1acc193d20ce5271e0eeaea47f4d98f50d648a4c2bd0a8a11e81b2dc852f0523629b563

  • SSDEEP

    1536:P8mnK6QFElP6n+gymddpMOtEvwDpjIHsalRn5iF1j6GC5:1nK6a+qdOOtEvwDpjA

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\3b46fd285baa2cexeexe_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\3b46fd285baa2cexeexe_JC.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:816
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:1740

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    100KB

    MD5

    9fda3a307745a8f6e76b552cc39bcaa4

    SHA1

    42ab00874a02cceeb7931823210dbb3b17f7c08f

    SHA256

    cd5b3226d40779a0386af077b5039fd148a8582e00335590fc52caaa5dc31715

    SHA512

    f2b584bc6de4ed9e201f56e4d68d2dbe036c23818fa4c18aa78d35f8ec8e49756dd46599b9283198e7a09f85e6b6aadd1012a637a24fd3c09ba061feea1bd7c0

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

    Filesize

    100KB

    MD5

    9fda3a307745a8f6e76b552cc39bcaa4

    SHA1

    42ab00874a02cceeb7931823210dbb3b17f7c08f

    SHA256

    cd5b3226d40779a0386af077b5039fd148a8582e00335590fc52caaa5dc31715

    SHA512

    f2b584bc6de4ed9e201f56e4d68d2dbe036c23818fa4c18aa78d35f8ec8e49756dd46599b9283198e7a09f85e6b6aadd1012a637a24fd3c09ba061feea1bd7c0

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

    Filesize

    100KB

    MD5

    9fda3a307745a8f6e76b552cc39bcaa4

    SHA1

    42ab00874a02cceeb7931823210dbb3b17f7c08f

    SHA256

    cd5b3226d40779a0386af077b5039fd148a8582e00335590fc52caaa5dc31715

    SHA512

    f2b584bc6de4ed9e201f56e4d68d2dbe036c23818fa4c18aa78d35f8ec8e49756dd46599b9283198e7a09f85e6b6aadd1012a637a24fd3c09ba061feea1bd7c0

  • memory/816-55-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/816-57-0x0000000000270000-0x0000000000276000-memory.dmp

    Filesize

    24KB

  • memory/816-56-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/816-69-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB

  • memory/816-54-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB

  • memory/816-68-0x0000000002800000-0x0000000002810000-memory.dmp

    Filesize

    64KB

  • memory/1740-71-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB

  • memory/1740-73-0x00000000001D0000-0x00000000001D6000-memory.dmp

    Filesize

    24KB

  • memory/1740-74-0x0000000000200000-0x0000000000206000-memory.dmp

    Filesize

    24KB

  • memory/1740-81-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB