Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-11-2022 11:22

General

  • Target

    a9f6d088d1a94d8acf6a702a4b24a5fca40006b5dea0665c7517d52cd824f1b1.exe

  • Size

    123KB

  • MD5

    2312a901fe66b97caaecfc2a4243617d

  • SHA1

    82f07dc97af09f81577b6acfd3ee6f318396d577

  • SHA256

    a9f6d088d1a94d8acf6a702a4b24a5fca40006b5dea0665c7517d52cd824f1b1

  • SHA512

    28dcb7f396cc119fc9a0e6fe73c8d6db2cbb4050992d336b6b4113c6a6d0ed5bc76584512cbc37904b6e2484342f72787a8ff51223ff7313156febda4dda3bff

  • SSDEEP

    3072:zr8WDrC1LsBZty6PyhujnxrfIOzCKGaVrXK:Pu1LGZ4crfIOzCSVrXK

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
  • 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\a9f6d088d1a94d8acf6a702a4b24a5fca40006b5dea0665c7517d52cd824f1b1.exe
    "C:\Users\Admin\AppData\Local\Temp\a9f6d088d1a94d8acf6a702a4b24a5fca40006b5dea0665c7517d52cd824f1b1.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:836
    • C:\Users\Admin\AppData\Local\Temp\3582-490\a9f6d088d1a94d8acf6a702a4b24a5fca40006b5dea0665c7517d52cd824f1b1.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\a9f6d088d1a94d8acf6a702a4b24a5fca40006b5dea0665c7517d52cd824f1b1.exe"
      2⤵
      • Executes dropped EXE
      PID:4520

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\a9f6d088d1a94d8acf6a702a4b24a5fca40006b5dea0665c7517d52cd824f1b1.exe

    Filesize

    82KB

    MD5

    1bff2f6a0d3c813de598a8f90e8fc567

    SHA1

    17989f2b11666db0d0930899c79f9d8740b50dcf

    SHA256

    c6fc343b0762b237ec7623f98261b277826653abe21436c531213ba970e984fc

    SHA512

    0d97bca647fe0b1ace4ba739e7378b22af438a394c630958a6f6c999cf1a9efdd01b39a1e589329a70042635e858a69fc469bdc3095fc6338571dd564cf034d1

  • C:\Users\Admin\AppData\Local\Temp\3582-490\a9f6d088d1a94d8acf6a702a4b24a5fca40006b5dea0665c7517d52cd824f1b1.exe

    Filesize

    82KB

    MD5

    1bff2f6a0d3c813de598a8f90e8fc567

    SHA1

    17989f2b11666db0d0930899c79f9d8740b50dcf

    SHA256

    c6fc343b0762b237ec7623f98261b277826653abe21436c531213ba970e984fc

    SHA512

    0d97bca647fe0b1ace4ba739e7378b22af438a394c630958a6f6c999cf1a9efdd01b39a1e589329a70042635e858a69fc469bdc3095fc6338571dd564cf034d1

  • memory/4520-132-0x0000000000000000-mapping.dmp