Overview

overview

10

Static

static

3

472a8fbff3...d1.exe

windows7-x64

10

472a8fbff3...d1.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe

  • Size

    1.1MB

  • Sample

    240524-bl8snafg91

  • MD5

    96a62642b79fcb88da4f854b2c46c64c

  • SHA1

    1778d5bad1acb999458092745af2a6ac3fce39a3

  • SHA256

    472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1

  • SHA512

    4643ede4706e904a6b6efd4c59d29c5a58c3aa3614de1d4d17e02d8ad33c4ecfd2bfe61de335e726c8ec085717afef77e9146eab4f71fd8a25758a2f3612d457

  • SSDEEP

    24576:+8lmSlcXrLArMThOTAiVOpoUJ3jEDFXF9bo:9mSubfQrVS1xjcFDo

Score
10/10
remcosremotehostcollectionexecutionpersistenceratspywarestealer

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

45.95.169.137:2404

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

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-NG20QI

  • 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

      472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe

    • Size

      1.1MB

    • MD5

      96a62642b79fcb88da4f854b2c46c64c

    • SHA1

      1778d5bad1acb999458092745af2a6ac3fce39a3

    • SHA256

      472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1

    • SHA512

      4643ede4706e904a6b6efd4c59d29c5a58c3aa3614de1d4d17e02d8ad33c4ecfd2bfe61de335e726c8ec085717afef77e9146eab4f71fd8a25758a2f3612d457

    • SSDEEP

      24576:+8lmSlcXrLArMThOTAiVOpoUJ3jEDFXF9bo:9mSubfQrVS1xjcFDo

    Score
    10/10
    remcosremotehostcollectionexecutionpersistenceratspywarestealer

    • Remcos

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

      ratremcos

    • Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)

    • Detects executables built or packed with MPress PE compressor

    • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

    • Detects executables referencing many email and collaboration clients. Observed in information stealers

    • 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

    • 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.

      spywarestealer

    • Accesses Microsoft Outlook accounts

      collection

    • Adds Run key to start application

      persistence

    • 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

Scheduled Task/Job

1
T1053

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks