Analysis

  • max time kernel
    135s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-05-2024 18:28

General

  • Target

    099e42db09df259b5a9b170b08e0b7667f677e87bbe2f19edea3615f09a7d759.exe

  • Size

    69KB

  • MD5

    56afab560134b74a4d846efc624c82fc

  • SHA1

    882211287468aeedbfd330488824daf6c248a222

  • SHA256

    099e42db09df259b5a9b170b08e0b7667f677e87bbe2f19edea3615f09a7d759

  • SHA512

    3a52b5187df2d499abc9b16fc3f864afdd3e8e1a123f5cb46dcf6e48584c27cc87d505fe7a77f216cd86ce9478785e02c40899f0f580f9ed7272d2f083ea211d

  • SSDEEP

    768:XS5nQJ24LR1bytOOtEvwDpjNbZ7uyA36S7MpxRXrZSUNsYD/dB:i5nkFGMOtEvwDpjNbwQEI8UZDL

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Detection of Cryptolocker Samples 2 IoCs
  • Detects executables built or packed with MPress PE compressor 4 IoCs
  • 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).

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\099e42db09df259b5a9b170b08e0b7667f677e87bbe2f19edea3615f09a7d759.exe
    "C:\Users\Admin\AppData\Local\Temp\099e42db09df259b5a9b170b08e0b7667f677e87bbe2f19edea3615f09a7d759.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3152
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Modifies system certificate store
      PID:2104

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    69KB

    MD5

    db406b7e1287b3fbd8e63714b654b8f5

    SHA1

    5e9702c072aad172055e4dd3625c6bf8abe1a911

    SHA256

    4fabf7674f414ca03e81d12942be301521697e6785af32b7e3c0c30fec58e387

    SHA512

    c0400157b4f42973e8585eb18188df3a569c7bd791637a53c67436f3f6963103eed2ec03825ad17946311f14a9008b4983d61849c1f56d7c051e218b5142ec02

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/2104-19-0x00000000006D0000-0x00000000006D6000-memory.dmp

    Filesize

    24KB

  • memory/2104-25-0x00000000006B0000-0x00000000006B6000-memory.dmp

    Filesize

    24KB

  • memory/2104-48-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/3152-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/3152-1-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB

  • memory/3152-2-0x00000000005D0000-0x00000000005D6000-memory.dmp

    Filesize

    24KB

  • memory/3152-9-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB

  • memory/3152-17-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB