Analysis

  • max time kernel
    151s
  • max time network
    188s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    25-05-2022 00:18

General

  • Target

    1775401d56db262a0ab8c13d920debdab4a6def8f7fc63c207bf9072839b9544.exe

  • Size

    3.2MB

  • MD5

    86695c78bdc078304c59cf2d8f0b4f7f

  • SHA1

    5a75bb05c88bb8e41121b62ba3b57bf53affa756

  • SHA256

    1775401d56db262a0ab8c13d920debdab4a6def8f7fc63c207bf9072839b9544

  • SHA512

    c041c57495eaee0cf51cd3933e15d1568b65d1418154332ff349878db88dc44d5bd486abc0ae45202b31cd8588d20ed22791207db5ca5fc8b1580d0a8b002be0

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.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • 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\1775401d56db262a0ab8c13d920debdab4a6def8f7fc63c207bf9072839b9544.exe
    "C:\Users\Admin\AppData\Local\Temp\1775401d56db262a0ab8c13d920debdab4a6def8f7fc63c207bf9072839b9544.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:4636
    • C:\Users\Admin\AppData\Local\Temp\3582-490\1775401d56db262a0ab8c13d920debdab4a6def8f7fc63c207bf9072839b9544.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\1775401d56db262a0ab8c13d920debdab4a6def8f7fc63c207bf9072839b9544.exe"
      2⤵
      • Executes dropped EXE
      PID:4960

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Change Default File Association

1
T1042

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\1775401d56db262a0ab8c13d920debdab4a6def8f7fc63c207bf9072839b9544.exe
    Filesize

    3.2MB

    MD5

    16625bf2941363d355d065bc1446debb

    SHA1

    5ad7abc52eea4d528028029435584b6e816b06f0

    SHA256

    e8737e840a32645f7a1b79fb4ed77f66ff8611ce63e809313deb724aa7d05271

    SHA512

    7c13f108ecd4dd160527c522bd621c178e4714f927349e93d8cc19e0b648044cc39751fa5438205c9a43a2c25ec5ad26502a83cefd6ec3c0c7fa918110f1d84d

  • memory/4960-130-0x0000000000000000-mapping.dmp
  • memory/4960-132-0x0000000002F70000-0x0000000002FD0000-memory.dmp
    Filesize

    384KB