Overview

overview

10

Static

static

1

Req. for q...on.xls

windows7-x64

10

Req. for q...on.xls

windows10-2004-x64

1

Sharing

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General

  • Target

    Req. for quotation.xls

  • Size

    307KB

  • Sample

    240522-wtvk8abf29

  • MD5

    aebf2a5d9c39a0ca3f50c94ef4019ea5

  • SHA1

    d13bca09d55ec93ca8d21ec63a5371f60a247aaf

  • SHA256

    6a1302ddfc84a73a69702b11ca81d318b073a07f79344c1485c5166e543f4518

  • SHA512

    8f684125d385e94a5f1a7b70e9727ccdbc350ce2150f5c70b3de49d33d1195f8c9fba96aeea922eae0b46fd336ae84b2ccd4493a9e4166b6c500bc2072b7119d

  • SSDEEP

    6144:u0W8kCSJ2FVYIa5FxCF/LWJ/Z/kM7yaTW7IY3BPdSI9pev+OZoK87:JW8kCSJcKxCAgQyag3BPIjLZoK87

Score
10/10
remcosnewcollectionexecutionpersistenceratspywarestealer

Malware Config

Extracted

Family

remcos

Botnet

New

C2

hoacanhceramic.com:14782

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-4X155W

  • 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

      Req. for quotation.xls

    • Size

      307KB

    • MD5

      aebf2a5d9c39a0ca3f50c94ef4019ea5

    • SHA1

      d13bca09d55ec93ca8d21ec63a5371f60a247aaf

    • SHA256

      6a1302ddfc84a73a69702b11ca81d318b073a07f79344c1485c5166e543f4518

    • SHA512

      8f684125d385e94a5f1a7b70e9727ccdbc350ce2150f5c70b3de49d33d1195f8c9fba96aeea922eae0b46fd336ae84b2ccd4493a9e4166b6c500bc2072b7119d

    • SSDEEP

      6144:u0W8kCSJ2FVYIa5FxCF/LWJ/Z/kM7yaTW7IY3BPdSI9pev+OZoK87:JW8kCSJcKxCAgQyag3BPIjLZoK87

    Score
    10/10
    remcosnewcollectionexecutionpersistenceratspywarestealer

    • Remcos

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

      ratremcos

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Nirsoft

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

      execution

    • Abuses OpenXML format to download file from external location

    • 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

    • Drops file in System32 directory

    • 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

Exploitation for Client Execution

1
T1203

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

System Information Discovery

3
T1082

Query Registry

3
T1012

Lateral Movement

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks