Overview

overview

10

Static

static

1

Plată Fac...85.xls

windows7-x64

10

Plată Fac...85.xls

windows10-2004-x64

1

Sharing

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General

  • Target

    Plată Factura MTL1185.xls

  • Size

    140KB

  • Sample

    240521-k3jpjafg6w

  • MD5

    2838526d9fb2cacb67df0ce3ed842254

  • SHA1

    6a3d7a3d3ecb37428a5538da254e2d19d44adc7f

  • SHA256

    b1e7182d24c06b1acaace6890fb755058453d653b0d217d76c9ed9cec785628e

  • SHA512

    526c32606397f0512473cdb719060f42dd865ebc29e4dfc4f72282cbc937ebdb1eee721051cad18f36b4c90127cd1937688cc482cf4da416b4541fdaeff0d75b

  • SSDEEP

    3072:40WF2rlGK9RDjlonbHUA++TVdOCsTd9gjQlyf4xd:40W8r0mRvanb04VsLT3

Score
10/10
remcosremotehostexecutionpersistencerat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

sembe.duckdns.org:14645

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

    nots.dat

  • keylog_flag

    false

  • keylog_folder

    note

  • keylog_path

    %Temp%

  • mouse_option

    false

  • mutex

    Rmc-999Z97

  • 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

      Plată Factura MTL1185.xls

    • Size

      140KB

    • MD5

      2838526d9fb2cacb67df0ce3ed842254

    • SHA1

      6a3d7a3d3ecb37428a5538da254e2d19d44adc7f

    • SHA256

      b1e7182d24c06b1acaace6890fb755058453d653b0d217d76c9ed9cec785628e

    • SHA512

      526c32606397f0512473cdb719060f42dd865ebc29e4dfc4f72282cbc937ebdb1eee721051cad18f36b4c90127cd1937688cc482cf4da416b4541fdaeff0d75b

    • SSDEEP

      3072:40WF2rlGK9RDjlonbHUA++TVdOCsTd9gjQlyf4xd:40W8r0mRvanb04VsLT3

    Score
    10/10
    remcosremotehostexecutionpersistencerat

    • Remcos

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

      ratremcos

    • 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

    • 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

Discovery

System Information Discovery

3
T1082

Query Registry

3
T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks