Analysis

  • max time kernel
    149s
  • max time network
    155s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    30-05-2024 06:29

General

  • Target

    2024-05-30_1b59d37c2d0fc309eea0e3906e17ed64_cryptolocker.exe

  • Size

    90KB

  • MD5

    1b59d37c2d0fc309eea0e3906e17ed64

  • SHA1

    a533fc0efd14ff91411790bacf33ef9895849507

  • SHA256

    5a7f44b12704457527c5ceb47d8764e20167c3a2fa83e05251a2b653be9fc01c

  • SHA512

    03d3b96e5bd016a12681b094990e49fadce4996b86d5e5005ee3546a81ae23a24def1aede1530b576297ceda431cb0716b7fc02f5ee03b0e5ed5b8b662a4daff

  • SSDEEP

    1536:n6QFElP6n+g9u9cvMOtEvwDpjYYTjipvF2bx1PQAA/x:n6a+1SEOtEvwDpjYYvQd2Py

Score
9/10
upx

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 IoCs
  • UPX dump on OEP (original entry point) 5 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 5 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\2024-05-30_1b59d37c2d0fc309eea0e3906e17ed64_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-30_1b59d37c2d0fc309eea0e3906e17ed64_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2956
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:3016

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    91KB

    MD5

    4b938be5204628bb7ebda37966fe9d86

    SHA1

    d3320178b5e945247f029fc0711971ba73f80d80

    SHA256

    ff6537ed172846cc1e8879cd1033069a778c6379ad94129828bda138b9b39a3d

    SHA512

    f7309ea2cf5f12bbbd5f106d3da1453e5a677260ecb3f80e0e333123bac77bf33c3b5f5b3b1f98cfe02849cd85129c0139ee768cd055590ac0bfcfa4ff461a08

  • memory/2956-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2956-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/2956-2-0x0000000000300000-0x0000000000306000-memory.dmp

    Filesize

    24KB

  • memory/2956-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/2956-15-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3016-16-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3016-25-0x00000000002D0000-0x00000000002D6000-memory.dmp

    Filesize

    24KB

  • memory/3016-18-0x0000000000340000-0x0000000000346000-memory.dmp

    Filesize

    24KB

  • memory/3016-26-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB