Analysis

  • max time kernel
    102s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    24-05-2022 22:27

General

  • Target

    52f9d30a8b09e411f18479888e591a24a9ccab7e5bd81c30ccfe43bbbc6bb401.exe

  • Size

    4.5MB

  • MD5

    51fd13f223b7fb819698426c16ac97e8

  • SHA1

    e21771f7ad74dea7e568c0b5331eef25095715a0

  • SHA256

    52f9d30a8b09e411f18479888e591a24a9ccab7e5bd81c30ccfe43bbbc6bb401

  • SHA512

    45b7a18926688e660619463b965514b55620c7080bd426a02300f45f89e121f4daf44d01079989602b174000cd09b592b09b62dd17ad5f674ae091e5e329f57d

Malware Config

Signatures

  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Executes dropped EXE 1 IoCs
  • VMProtect packed file 3 IoCs

    Detects executables packed with VMProtect commercial packer.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\52f9d30a8b09e411f18479888e591a24a9ccab7e5bd81c30ccfe43bbbc6bb401.exe
    "C:\Users\Admin\AppData\Local\Temp\52f9d30a8b09e411f18479888e591a24a9ccab7e5bd81c30ccfe43bbbc6bb401.exe"
    1⤵
    • Modifies system executable filetype association
    • Checks computer location settings
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4484
    • C:\Users\Admin\AppData\Local\Temp\3582-490\52f9d30a8b09e411f18479888e591a24a9ccab7e5bd81c30ccfe43bbbc6bb401.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\52f9d30a8b09e411f18479888e591a24a9ccab7e5bd81c30ccfe43bbbc6bb401.exe"
      2⤵
      • Executes dropped EXE
      PID:1564

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\52f9d30a8b09e411f18479888e591a24a9ccab7e5bd81c30ccfe43bbbc6bb401.exe

    Filesize

    4.4MB

    MD5

    3760caa26ed0a55986a312adc383ab7b

    SHA1

    10cc6228ef0f1e286d99483e547c47eaa53556b9

    SHA256

    d26d592eeabf10e4c4ac382d406719f677eed0a08863990ad1648b01116f3465

    SHA512

    86f7c1ae8ecb771d918e8cca988e1c63cf248f2540c25ed3579bc73bd479bb3e829074bc15c48047a6b6aa5510d3571dd714b98e8d7c6668144622e914740246

  • C:\Users\Admin\AppData\Local\Temp\3582-490\52f9d30a8b09e411f18479888e591a24a9ccab7e5bd81c30ccfe43bbbc6bb401.exe

    Filesize

    4.4MB

    MD5

    3760caa26ed0a55986a312adc383ab7b

    SHA1

    10cc6228ef0f1e286d99483e547c47eaa53556b9

    SHA256

    d26d592eeabf10e4c4ac382d406719f677eed0a08863990ad1648b01116f3465

    SHA512

    86f7c1ae8ecb771d918e8cca988e1c63cf248f2540c25ed3579bc73bd479bb3e829074bc15c48047a6b6aa5510d3571dd714b98e8d7c6668144622e914740246

  • memory/1564-130-0x0000000000000000-mapping.dmp

  • memory/1564-133-0x00000000004B0000-0x0000000000C76000-memory.dmp

    Filesize

    7.8MB

  • memory/1564-135-0x000000000A040000-0x000000000A5E4000-memory.dmp

    Filesize

    5.6MB

  • memory/1564-136-0x0000000005630000-0x00000000056C2000-memory.dmp

    Filesize

    584KB

  • memory/1564-137-0x00000000055D0000-0x00000000055DA000-memory.dmp

    Filesize

    40KB