Analysis

  • max time kernel
    95s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-09-2024 12:14

General

  • Target

    2024-09-05_bdf5f9c6a0ad424e8b0a16e6672bd5ea_cryptolocker.exe

  • Size

    71KB

  • MD5

    bdf5f9c6a0ad424e8b0a16e6672bd5ea

  • SHA1

    76902baeb876d74b1e567382a2f55c3edc07ffc4

  • SHA256

    b2ee13dfd158d8c7c4f4f5bbf87359d79499a22133f43d322f082bb83c46b9bc

  • SHA512

    ea77e89c8a367ec34822f406633d86adbe1bf261f9b24e6c42a389a7ddc193a5c8e372deb133448bd71d4ea6e44f74f21aa39e8f1514b3cd6e8dcd3f784c29b6

  • SSDEEP

    768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4ZPsED3VK2+ZtyOjgO4r9vFAg2rq2g1B/R9:vj+jsMQMOtEvwDpj5HZYTjipvF24F

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
  • 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 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-05_bdf5f9c6a0ad424e8b0a16e6672bd5ea_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-05_bdf5f9c6a0ad424e8b0a16e6672bd5ea_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2172
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      PID:1584

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    72KB

    MD5

    996a8c68aedb18ebd32d141c91ba94ca

    SHA1

    a7ff8d9592bd2807d106fe2a8e43ccf8694b8d13

    SHA256

    1af7f002eda6e9c26526a7b8695c3b3ebbd6606b43a9827126004f6660723c0c

    SHA512

    5f81f3b81cc8677eb79361b193cc38253bdef785f64eeda76e27a7f7445778c215b4e1f7511741f209eb814511fbb16b66a6bcdc69e5d153eb6ca9aaec85eded

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1584-17-0x0000000000560000-0x0000000000566000-memory.dmp

    Filesize

    24KB

  • memory/1584-18-0x00000000006C0000-0x00000000006C6000-memory.dmp

    Filesize

    24KB

  • memory/2172-0-0x00000000005F0000-0x00000000005F6000-memory.dmp

    Filesize

    24KB

  • memory/2172-1-0x00000000005F0000-0x00000000005F6000-memory.dmp

    Filesize

    24KB

  • memory/2172-2-0x0000000000620000-0x0000000000626000-memory.dmp

    Filesize

    24KB