Overview

overview

10

Static

static

1

6c7572f38e...8f.exe

windows7-x64

10

6c7572f38e...8f.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    6c7572f38ec5853112211eb940751b660538d61f67ae8097c8435991768af98f.exe

  • Size

    1.5MB

  • Sample

    240522-vtbyfaac4x

  • MD5

    a01dc98fbbd12e4e5ed0a3aa2ab17621

  • SHA1

    e556895217266e277aeff6bd21c8cf8f151e532a

  • SHA256

    6c7572f38ec5853112211eb940751b660538d61f67ae8097c8435991768af98f

  • SHA512

    36f777efc025eecdb06f5f86fd96a808ac91d949ababbd08ec7dd3560507fcb9aea974e253cd49650b6c35111f0f3fb7b13efc43bc925673e33055e7204ecbbc

  • SSDEEP

    24576:mTD/rj1i8Lf0156tsPlSd+uqp9I1ioX/T9d9YrJFoi7+FxkQBRGprqH0R:M8g0Gd+1BoPTjurEiMxzHGtqi

Score
10/10
remcosprotectedcollectionevasionexecutionrattrojan

Malware Config

Extracted

Family

remcos

Botnet

Protected

C2

janbours92harbu01.duckdns.org:3980

janbours92harbu01.duckdns.org:3981

janbours92harbu02.duckdns.org:3980
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

    true

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    kajsoiestc.dat

  • keylog_flag

    false

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    aksoiestgb-1YOAXH

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      6c7572f38ec5853112211eb940751b660538d61f67ae8097c8435991768af98f.exe

    • Size

      1.5MB

    • MD5

      a01dc98fbbd12e4e5ed0a3aa2ab17621

    • SHA1

      e556895217266e277aeff6bd21c8cf8f151e532a

    • SHA256

      6c7572f38ec5853112211eb940751b660538d61f67ae8097c8435991768af98f

    • SHA512

      36f777efc025eecdb06f5f86fd96a808ac91d949ababbd08ec7dd3560507fcb9aea974e253cd49650b6c35111f0f3fb7b13efc43bc925673e33055e7204ecbbc

    • SSDEEP

      24576:mTD/rj1i8Lf0156tsPlSd+uqp9I1ioX/T9d9YrJFoi7+FxkQBRGprqH0R:M8g0Gd+1BoPTjurEiMxzHGtqi

    Score
    10/10
    remcosprotectedcollectionevasionexecutionrattrojan

    • Remcos

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

      ratremcos

    • UAC bypass

      evasiontrojan

    • Windows security bypass

      evasiontrojan

    • Looks for VirtualBox Guest Additions in registry

      evasion

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Nirsoft

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

      execution

    • Looks for VMWare Tools registry key

      evasion

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Uses the VBS compiler for execution

    • Windows security modification

      evasiontrojan

    • Accesses Microsoft Outlook accounts

      collection

    • Checks whether UAC is enabled

      evasiontrojan

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Scripting

1
T1064

Persistence

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Impair Defenses

3
T1562

Disable or Modify Tools

3
T1562.001

Modify Registry

4
T1112

Virtualization/Sandbox Evasion

2
T1497

Scripting

1
T1064

Credential Access

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

5
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Email Collection

1
T1114

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks