Overview

overview

10

Static

static

1

Invoice No...4.docx

windows7-x64

10

Invoice No...4.docx

windows10-2004-x64

1

Sharing

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General

  • Target

    Invoice No. 03182024.docx

  • Size

    439KB

  • Sample

    240419-kl5knsdb26

  • MD5

    3cd11c45527d60f9fc7d46c5a2470b5b

  • SHA1

    746940015c13deb1ec8cecd19cd0bfcee04d98dd

  • SHA256

    68f890c36db4f07e9f3bbdfb68c5bc2d5226fcd9a875db82d73d863c7d2dce9a

  • SHA512

    de0019b966f0507eccf49fde58715f5de8f138a2c9f5f29f1c714e9e2f926ad205dadd95df8889fce05fd6ecdfb489f052552fb762a09386e012fef49049f2a0

  • SSDEEP

    12288:uIT4h1dPffeeu9HGV/vGg73U9BOwm72yWHOOkxogMe:vT4h7PgmlGra2yWHOOkdMe

Score
10/10
remcosbuddycollectionpersistenceratspywarestealer

Malware Config

Extracted

Family

remcos

Botnet

BUDDY

C2

192.210.201.57:52499

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-LMLI87

  • 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

      Invoice No. 03182024.docx

    • Size

      439KB

    • MD5

      3cd11c45527d60f9fc7d46c5a2470b5b

    • SHA1

      746940015c13deb1ec8cecd19cd0bfcee04d98dd

    • SHA256

      68f890c36db4f07e9f3bbdfb68c5bc2d5226fcd9a875db82d73d863c7d2dce9a

    • SHA512

      de0019b966f0507eccf49fde58715f5de8f138a2c9f5f29f1c714e9e2f926ad205dadd95df8889fce05fd6ecdfb489f052552fb762a09386e012fef49049f2a0

    • SSDEEP

      12288:uIT4h1dPffeeu9HGV/vGg73U9BOwm72yWHOOkxogMe:vT4h7PgmlGra2yWHOOkdMe

    Score
    10/10
    remcosbuddycollectionpersistenceratspywarestealer

    • 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

    • 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

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