Overview

overview

10

Static

static

1

Enquiry No...la.xls

windows7-x64

10

Enquiry No...la.xls

windows10-2004-x64

1

Sharing

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General

  • Target

    Enquiry No. 2421005.xla.xlsx

  • Size

    288KB

  • Sample

    240522-wtsfvsbe2x

  • MD5

    c0ebdb60b864fa2e67de7ce936940fe7

  • SHA1

    cd7d188d435223ef0ecc0b1b7288ad9e6b4ff1e6

  • SHA256

    d9a36f96f6d7263584d9d7ef75116e6f3361b989ef59df225b53ee826654373d

  • SHA512

    8e677a80609a7d54008b319836cdbd60747ade9f3ec74670617f33f68a3c9f6db768c3e9e2d2e8d9d162a930f35c19585300bcdd83f3600b90544b6b6cd52f0c

  • SSDEEP

    6144:96NCLXoD6NCLXuc2gfBsHPUacczIoQva0FYnbDjXSR8CBMzWEDS9V5hqc:96NCL4D6NCLeCfG8kMva0FYXjQFTf5h

Score
10/10
remcosremotehostexecutionpersistencerat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

2024remcmon.duckdns.org:14645

newlinkforconnect.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

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-YE1Z5P

  • 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

      Enquiry No. 2421005.xla.xlsx

    • Size

      288KB

    • MD5

      c0ebdb60b864fa2e67de7ce936940fe7

    • SHA1

      cd7d188d435223ef0ecc0b1b7288ad9e6b4ff1e6

    • SHA256

      d9a36f96f6d7263584d9d7ef75116e6f3361b989ef59df225b53ee826654373d

    • SHA512

      8e677a80609a7d54008b319836cdbd60747ade9f3ec74670617f33f68a3c9f6db768c3e9e2d2e8d9d162a930f35c19585300bcdd83f3600b90544b6b6cd52f0c

    • SSDEEP

      6144:96NCLXoD6NCLXuc2gfBsHPUacczIoQva0FYnbDjXSR8CBMzWEDS9V5hqc:96NCL4D6NCLeCfG8kMva0FYXjQFTf5h

    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