Analysis

  • max time kernel
    121s
  • max time network
    134s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    09/03/2024, 21:56

General

  • Target

    2024-03-09_d9a26b386a86c1656d1c4a73f07840d1_cryptolocker.exe

  • Size

    42KB

  • MD5

    d9a26b386a86c1656d1c4a73f07840d1

  • SHA1

    af60219ff56e26d745dd00c1477f50b83ff14320

  • SHA256

    d143de38138355352bfc402be7dcd162ed401a31dc6452791667cde020d92a27

  • SHA512

    e262ad1e17c506abb0a70cf3e14b033144f40d561a8928192d3c26e0b449bb508d4b72fee0b98e36b45fe7dd73f06f3bb9a0ee597dd10e135bb75c59d79aa035

  • SSDEEP

    768:btB9g/WItCSsAGjX7r3BPOMHoc/QQJPCQ:btB9g/xtCSKfxLIc/X

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).

  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-03-09_d9a26b386a86c1656d1c4a73f07840d1_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-09_d9a26b386a86c1656d1c4a73f07840d1_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2600
    • C:\Users\Admin\AppData\Local\Temp\gewos.exe
      "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of UnmapMainImage
      PID:2664

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    42KB

    MD5

    a8ff3869f113b6a9cf760b382ce1f7f7

    SHA1

    9a4f0dc35f49d575d704e1840e61f51c3526bf78

    SHA256

    29b71ba0174abc25d6f12770590de965d325d21e734c8ea220190787e46b9d3d

    SHA512

    ad14370c645dcabfc66bd6238eb79e2499e4684c91f38b2b201ff78c5d291b64cd91bb95c1cc9ad55fcd7c287d04678ed9ec87496231a1e5b163a371d9eaa8f4

  • memory/2600-0-0x00000000003C0000-0x00000000003C6000-memory.dmp

    Filesize

    24KB

  • memory/2600-1-0x00000000003C0000-0x00000000003C6000-memory.dmp

    Filesize

    24KB

  • memory/2600-2-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

  • memory/2664-23-0x0000000000390000-0x0000000000396000-memory.dmp

    Filesize

    24KB