Overview

overview

10

Static

static

8

Payment Advice.xls

windows7-x64

10

Payment Advice.xls

windows10-2004-x64

10

Sharing

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General

  • Target

    Payment Advice.xls

  • Size

    124KB

  • Sample

    220818-rh1wmsaed7

  • MD5

    873c90af6836b2ad3cce748e99d1b0bd

  • SHA1

    266f7f7ac7890227852a996d5f71bf09483616df

  • SHA256

    9465c35c652271b12b696f88d353149641b74c354d955753e10ee14424e84f88

  • SHA512

    e52eeebb1997b795331fac921dee3e831bd1cc44a73921e2bc5454bb56e3b68f7313aa90fc8bf8519e0afc1fff68ae5850dcfa8e2d2bdc404dd5e9774878d071

  • SSDEEP

    3072:Mk3hOdsylKlgxopeiBNhZFGzE+cL2kdAJbE22h6hu5LmZADuohIliIsz:Mk3hOdsylKlgxopeiBNhZF+E+W2kdAKV

Score
10/10
remcosaugcollectionmacromacro_on_actionrat

Malware Config

Extracted

Family

remcos

Botnet

Aug

C2

topboysully.dvrlists.com:10171

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • 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

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Aug-MR3KZU

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      Payment Advice.xls

    • Size

      124KB

    • MD5

      873c90af6836b2ad3cce748e99d1b0bd

    • SHA1

      266f7f7ac7890227852a996d5f71bf09483616df

    • SHA256

      9465c35c652271b12b696f88d353149641b74c354d955753e10ee14424e84f88

    • SHA512

      e52eeebb1997b795331fac921dee3e831bd1cc44a73921e2bc5454bb56e3b68f7313aa90fc8bf8519e0afc1fff68ae5850dcfa8e2d2bdc404dd5e9774878d071

    • SSDEEP

      3072:Mk3hOdsylKlgxopeiBNhZFGzE+cL2kdAJbE22h6hu5LmZADuohIliIsz:Mk3hOdsylKlgxopeiBNhZF+E+W2kdAKV

    Score
    10/10
    remcosaugcollectionrat

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • 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

    • Checks computer location settings

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

    • Loads dropped DLL

    • Accesses Microsoft Outlook accounts

      collection

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

3
T1012

System Information Discovery

4
T1082

Lateral Movement

Collection

Email Collection

1
T1114

Exfiltration

Command and Control

Impact

Tasks