Overview

overview

10

Static

static

1

sostener.vbs

windows7-x64

10

sostener.vbs

windows10-2004-x64

10

Sharing

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General

  • Target

    sostener.vbs

  • Size

    1.6MB

  • Sample

    240925-r3l8zsthpf

  • MD5

    76dc07a863d93237819c1e08c5bb0eef

  • SHA1

    fc7e6a1ef7679f7461ae8b34987b46dc118cc4bb

  • SHA256

    5e519ab2640c9d1065a0e7610661fcd83e2e38869d48768fcd1b674b3804dd0f

  • SHA512

    9538b37d31fcb53e968ce7e69c13166e3f4f16fada79b9bac91ec2de012ed5b2642e6e380591c9716e9ae8d8f1149b7492e06c291bb8ec6a234af47daf95b51e

  • SSDEEP

    192:9PmPPPPmPPPPPPGPmPPPPmPPPPPPGPmPPPPmPPPPPPGPmPPPPmPPPPPPGPmPPPP7:IeGsXcpR

Score
10/10
remcosremotehostdiscoveryexecutionrat

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://pastebin.com/raw/V9y5Q5vv

Extracted

Family

remcos

Botnet

RemoteHost

C2

rem0324.duckdns.org:1213

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

    Rmc-WGH0X6

  • 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

      sostener.vbs

    • Size

      1.6MB

    • MD5

      76dc07a863d93237819c1e08c5bb0eef

    • SHA1

      fc7e6a1ef7679f7461ae8b34987b46dc118cc4bb

    • SHA256

      5e519ab2640c9d1065a0e7610661fcd83e2e38869d48768fcd1b674b3804dd0f

    • SHA512

      9538b37d31fcb53e968ce7e69c13166e3f4f16fada79b9bac91ec2de012ed5b2642e6e380591c9716e9ae8d8f1149b7492e06c291bb8ec6a234af47daf95b51e

    • SSDEEP

      192:9PmPPPPmPPPPPPGPmPPPPmPPPPPPGPmPPPPmPPPPPPGPmPPPPmPPPPPPGPmPPPP7:IeGsXcpR

    Score
    10/10
    executionremcosremotehostdiscoveryrat

    • Remcos

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

      ratremcos

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

      execution

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks