Resubmissions

17-01-2024 03:31

240117-d3anasggd8 10

17-01-2024 03:18

240117-dtn5bsfffm 5

General

  • Target

    GFD09860SD.bat

  • Size

    1.5MB

  • Sample

    240117-d3anasggd8

  • MD5

    84dda4f5af900ebe09585dc2d73e01e4

  • SHA1

    64902c9d9b0e4687012dfae44dfbe4632eb8f502

  • SHA256

    20d3776c045662266c5675697a47883c95313805e12520c6118f7c5778e7ae8d

  • SHA512

    4bee8cda72fd040a4b202b8b3abf2817fe7b47a4c21444189cddca00fe15547017196f5282e1651d10be39a5695fb9b3f57aeaf5337081c393d51a39b69fac85

  • SSDEEP

    24576:zqDEvCTbMWu7rQYlBQcBiT6rprG8aNetLW7bv1C6PFztVQAiAfCFkqbB0XO:zTvC/MTQYxsWR7aNLvU6PFXjbfCFkqb8

Malware Config

Extracted

Family

remcos

Botnet

PC

C2

107.175.229.139:8087

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

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-X5MJYU

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      GFD09860SD.bat

    • Size

      1.5MB

    • MD5

      84dda4f5af900ebe09585dc2d73e01e4

    • SHA1

      64902c9d9b0e4687012dfae44dfbe4632eb8f502

    • SHA256

      20d3776c045662266c5675697a47883c95313805e12520c6118f7c5778e7ae8d

    • SHA512

      4bee8cda72fd040a4b202b8b3abf2817fe7b47a4c21444189cddca00fe15547017196f5282e1651d10be39a5695fb9b3f57aeaf5337081c393d51a39b69fac85

    • SSDEEP

      24576:zqDEvCTbMWu7rQYlBQcBiT6rprG8aNetLW7bv1C6PFztVQAiAfCFkqbB0XO:zTvC/MTQYxsWR7aNLvU6PFXjbfCFkqb8

    • 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.

    • Drops startup file

    • Executes dropped EXE

    • 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

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

2
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Tasks