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Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    24/04/2024, 04:22

General

  • Target

    2024-04-24_d8e7cb8c4b7a0130a5ac0fcb8d692b1e_cryptolocker.exe

  • Size

    41KB

  • MD5

    d8e7cb8c4b7a0130a5ac0fcb8d692b1e

  • SHA1

    840f3a5342ccea776c4d038e20b321d2ce4885a8

  • SHA256

    d13206cb9a6afa85ef00d07f2bda90f2f35f9e2d4ee6654d161b29f16cbd0210

  • SHA512

    9faa2c1c0efe42f5bf5156ce0c3d9b3dd1102f5e1658f398dcfc2cd60ab46859e49ef66dd4e6b1a7559d6701fb25594cb340819541739f5e587be6f429f279c3

  • SSDEEP

    768:bAvJCYOOvbRPDEgXrNekd7l94i3py/yY/Jj:bAvJCF+RQgJeab4sy/lt

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 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).

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-04-24_d8e7cb8c4b7a0130a5ac0fcb8d692b1e_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-24_d8e7cb8c4b7a0130a5ac0fcb8d692b1e_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1296
    • C:\Users\Admin\AppData\Local\Temp\demka.exe
      "C:\Users\Admin\AppData\Local\Temp\demka.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      PID:2520

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    42KB

    MD5

    09fed60e458bc459a8f3ef50602ff619

    SHA1

    a28f97038396b4d5e41425e4434cae81abfe77c8

    SHA256

    4d89d5c45cd02b280cddab97b61bb0d054cb308bfb860dcb07b1736d235eb82e

    SHA512

    dc7ad7c2d527464c455d1ec2e391a80063ccfdbe6cd194339a33d359d296c4f951989700b3cb39c82c4db1eb480f50b835a8a6cbe033e495866a15e8599f99ae

  • memory/1296-0-0x0000000000390000-0x0000000000396000-memory.dmp

    Filesize

    24KB

  • memory/1296-1-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

  • memory/1296-8-0x0000000000390000-0x0000000000396000-memory.dmp

    Filesize

    24KB