General

  • Target

    XDR_ResponseApp_CollectFile_ID00000021_20230220T082205Z.7z

  • Size

    360KB

  • Sample

    230220-kfr3dshf8y

  • MD5

    eac042ad2e62c99e7fdb1f7490198c8a

  • SHA1

    01e22157ced06d3d70bd5a2b160e86c5f3f45244

  • SHA256

    7b977c0aede71c9d61e8659f07989a9b6475d0a7b09a16f4612918eb4bd72c62

  • SHA512

    ca3763d8982a55c354282d3044d61000052a28e66eb9199b99428db7ea7fd1c7e704168495a019d3865326fe6124a9aa95be02b1048c6de0cb1e08426a5636e5

  • SSDEEP

    6144:Z3/G18jhLM9hepMZFvyt38i0vX0yC/3JWf/0ceWB5hg4nO6nV4OHVphCLtCTrE3y:dJj5M9fZFvytMiHT/ZWX02B3gxoVnVph

Malware Config

Extracted

Family

remcos

Botnet

Feb-AED-2023

C2

pentester01.duckdns.org:53077

pentester0.accesscam.org:56796

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    WeTransfer.exe

  • copy_folder

    WeTransfer

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    Wetransfer

  • mouse_option

    false

  • mutex

    Wtr-T1D6TL

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    WeTransfer

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      Specifications.exe

    • Size

      37.2MB

    • MD5

      a2407b5450ae9e9c2e9cd2ce23b730f2

    • SHA1

      050c50124c3728b8e32b1d0ee3ac7051ef062f72

    • SHA256

      21586473125a0d4814ec8cfc1c09a310889f9f1fc9002eb75ff84e98fb4ff22a

    • SHA512

      f82e2ab6dabf9491543b490f66a0f464edd17529e3b455364993094398d3423f73ef561082054ca2c176739f23d70bcd01d257bc4d967ab935ac44cecbff4809

    • SSDEEP

      12288:59eu4QUqmzouRvfkK10/ngIlubJA7pXUKPpj1R8P/Wx5QblAc6FgMHOygt:59B4cuRHLkVS8pjTfzClp6FFu/

    • ModiLoader, DBatLoader

      ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.

    • Remcos

      Remcos is a closed-source remote control and surveillance software.

    • ModiLoader Second Stage

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Nirsoft

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Accesses Microsoft Outlook accounts

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

3
T1012

System Information Discovery

4
T1082

Remote System Discovery

1
T1018

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Command and Control

Web Service

1
T1102

Tasks