Analysis

  • max time kernel
    136s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/08/2023, 10:22

General

  • Target

    4fd5aa66a0d427b405324b1786b182c2_cryptolocker_JC.exe

  • Size

    49KB

  • MD5

    4fd5aa66a0d427b405324b1786b182c2

  • SHA1

    fcb5d90323f8a552087c610651c79d6deafe99be

  • SHA256

    d2cf7b30fed1db7d6b64d5a5e16b76cb39b842351e216dd4898e25c1d5c8c20a

  • SHA512

    f09e606c9767ebf6358cc631da4a7033a5d70d24d8809c46cd19f160d522aecd03968df00c367808a642f0ff415e94f726a77d9c97a9b40acb6a53fe202143dd

  • SSDEEP

    768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4hdCW1nw71TkhsiPn1YFvs:vj+jsMQMOtEvwDpj5HH1nw73KOFE

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4fd5aa66a0d427b405324b1786b182c2_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\4fd5aa66a0d427b405324b1786b182c2_cryptolocker_JC.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1368
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      PID:4360

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    50KB

    MD5

    05880a4ad436fc8ae18afb5b62debd3f

    SHA1

    29680c40cc4d65df18f56d7354cf3e28f322e893

    SHA256

    6760afece0324889505b9038d05ed5bdddf3c0e3eec047b356e8d3e97c8b57ac

    SHA512

    6de91318e59dc50fbc8099f99278559738f3a6404469474af549a51ac1136e894750740e6cd47c97f63a6078b4a86d8b17c12cf8700560f0c8739290f8dece8d

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

    Filesize

    50KB

    MD5

    05880a4ad436fc8ae18afb5b62debd3f

    SHA1

    29680c40cc4d65df18f56d7354cf3e28f322e893

    SHA256

    6760afece0324889505b9038d05ed5bdddf3c0e3eec047b356e8d3e97c8b57ac

    SHA512

    6de91318e59dc50fbc8099f99278559738f3a6404469474af549a51ac1136e894750740e6cd47c97f63a6078b4a86d8b17c12cf8700560f0c8739290f8dece8d

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

    Filesize

    50KB

    MD5

    05880a4ad436fc8ae18afb5b62debd3f

    SHA1

    29680c40cc4d65df18f56d7354cf3e28f322e893

    SHA256

    6760afece0324889505b9038d05ed5bdddf3c0e3eec047b356e8d3e97c8b57ac

    SHA512

    6de91318e59dc50fbc8099f99278559738f3a6404469474af549a51ac1136e894750740e6cd47c97f63a6078b4a86d8b17c12cf8700560f0c8739290f8dece8d

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1368-133-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB

  • memory/1368-134-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB

  • memory/1368-135-0x00000000005D0000-0x00000000005D6000-memory.dmp

    Filesize

    24KB