Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/11/2024, 06:54

General

  • Target

    2024-11-10_f459ef07352f95b531be627d3a17c2c9_cryptolocker.exe

  • Size

    54KB

  • MD5

    f459ef07352f95b531be627d3a17c2c9

  • SHA1

    0c5b2a2c708c9553f2c91ff0901ee97701d45fa4

  • SHA256

    b6fad117825b6ceb6a7144af33d5bf4f0a22039751bf197b02d3e03179af38e0

  • SHA512

    20c90dba850c27764235c3511ff50d5e1efa8003bc57d0d79b37ff912208252c31ac2ce407586864cf56e820e7b188a1e929eb596b069903f9bf9c911771af7e

  • SSDEEP

    768:bODOw9UiamWUB2preAr+OfjH/0S16avdrQFiLjJvtOun:bODOw9acifAoc+vx

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • UPX packed file 4 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).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-11-10_f459ef07352f95b531be627d3a17c2c9_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-11-10_f459ef07352f95b531be627d3a17c2c9_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4408
    • C:\Users\Admin\AppData\Local\Temp\lossy.exe
      "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      PID:4252

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    54KB

    MD5

    f61ed601cf94a6d95cd32bf33638522b

    SHA1

    a330fd2f87898dd84917a4f23868a69f5f016b6e

    SHA256

    47ada7a88ed48365d1dbafcb534aeb7962e9bbb504d34cf72aaea5e3d50170ed

    SHA512

    3d7fabcf533264b4dcc2a167d7dfc329ff1e36d4a99e88029455498322283dfeecbc9c73c1bba0ff74fc32111f4a1c5bac4dd58986244c7ecf36a876c31f41e3

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

    Filesize

    537B

    MD5

    590a2a16db7c9454e5429278e1e95347

    SHA1

    11dd68b8c510df635ff033c58fa002fdcd196927

    SHA256

    c5ffd9dbef8cebbf04436e0680847b95be3f8140e3b3d1e99fe7e743799dfd97

    SHA512

    7e55708920fe2541ab1236c7616d67fd85795e80bc5f399d9b101372c347534940f2f81d942bb094c2d188b23a3501439443afbc0ca142758708c909c009cfa3

  • memory/4252-20-0x0000000002030000-0x0000000002036000-memory.dmp

    Filesize

    24KB

  • memory/4252-19-0x0000000002130000-0x0000000002136000-memory.dmp

    Filesize

    24KB

  • memory/4252-52-0x0000000008000000-0x000000000800F000-memory.dmp

    Filesize

    60KB

  • memory/4408-0-0x0000000008000000-0x000000000800F000-memory.dmp

    Filesize

    60KB

  • memory/4408-1-0x00000000021B0000-0x00000000021B6000-memory.dmp

    Filesize

    24KB

  • memory/4408-2-0x00000000021B0000-0x00000000021B6000-memory.dmp

    Filesize

    24KB

  • memory/4408-3-0x0000000002050000-0x0000000002056000-memory.dmp

    Filesize

    24KB

  • memory/4408-17-0x0000000008000000-0x000000000800F000-memory.dmp

    Filesize

    60KB