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Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    16/03/2024, 07:53

General

  • Target

    2024-03-16_bb56b1f43609cbc2282c2684354ae7aa_cryptolocker.exe

  • Size

    26KB

  • MD5

    bb56b1f43609cbc2282c2684354ae7aa

  • SHA1

    5e292c817fc26eb4625c6aebc8dd62603a7feb1f

  • SHA256

    f622f4f4836c92a253168aaf7ef01ad1b6796498f49e350e889cb8f98ed60d9a

  • SHA512

    8e7c5683f7b199deeee23f76ac29272a884c94fd8ea082cdfbd015bdd04ed04757e29346311bb0cd4636a1b7f856eb3d949c6f40bb5e5c4354376da10d74a8bf

  • SSDEEP

    384:qxOZzyjOnqGAs+8ULueO4NdE8tOOtEvwDpjqIGRYK1sGGYkxOqy:q0ZziOWwULueOSdE8tOOtEvwDpjeYy

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 3 IoCs
  • UPX dump on OEP (original entry point) 5 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • 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\2024-03-16_bb56b1f43609cbc2282c2684354ae7aa_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-16_bb56b1f43609cbc2282c2684354ae7aa_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:936
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2996

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    27KB

    MD5

    7c518f4bb7b992c690fe72bfcc3165d1

    SHA1

    1fdd7ec23bbbd342888309d73f57a10b2ea55d4d

    SHA256

    12c6e4a73cd9fdf73759eec54cb9fccee0ba700fb5a7b82dfa3dac96f00d6522

    SHA512

    3b111ab13b676d541fee745a28a6cd240fad0a4e990a419b181d3d339c258bb12b299f469336759cab5667914e8b1975e56aaccb8a69453d84d68979d8c35f2f

  • memory/936-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/936-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/936-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/936-3-0x00000000002F0000-0x00000000002F6000-memory.dmp

    Filesize

    24KB

  • memory/936-15-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2996-16-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2996-18-0x0000000000270000-0x0000000000276000-memory.dmp

    Filesize

    24KB

  • memory/2996-23-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2996-26-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB