General

  • Target

    PO_No._ANOP0658.exe

  • Size

    7KB

  • Sample

    221005-sdrb3sefd3

  • MD5

    bf66440c894e2c3691b58423deb5a96a

  • SHA1

    6a0d775b272c09dd4f7b1b3269d5497aa9e0bbc8

  • SHA256

    8af0a92b4f923ce464380fb0f5dc8203b4d00211b239e87d814ad44b620d63e7

  • SHA512

    989da9407ec44ccca4e3663746cecdb1fd1400cb66b486e4b56a69e6116589be8d1b317f4db5fb9e9c02b728f1d2e173c18ad6c8bd2539bfb8818f615e0db7f8

  • SSDEEP

    96:hM+yDs4I3dsoS3iJA9W2uavvDePHK5GIR6oP959xzNtR:hM+6sR2oS3lE2umbePHK5GIvbpX

Malware Config

Extracted

Family

remcos

Botnet

50005

C2

45.155.165.117:50005

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • 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

    remcos

  • mouse_option

    false

  • mutex

    jubjutgwfkpjgsh-G1HYQL

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      PO_No._ANOP0658.exe

    • Size

      7KB

    • MD5

      bf66440c894e2c3691b58423deb5a96a

    • SHA1

      6a0d775b272c09dd4f7b1b3269d5497aa9e0bbc8

    • SHA256

      8af0a92b4f923ce464380fb0f5dc8203b4d00211b239e87d814ad44b620d63e7

    • SHA512

      989da9407ec44ccca4e3663746cecdb1fd1400cb66b486e4b56a69e6116589be8d1b317f4db5fb9e9c02b728f1d2e173c18ad6c8bd2539bfb8818f615e0db7f8

    • SSDEEP

      96:hM+yDs4I3dsoS3iJA9W2uavvDePHK5GIR6oP959xzNtR:hM+6sR2oS3lE2umbePHK5GIvbpX

    • Remcos

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

    • 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.

    • 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

    • 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

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Tasks