Overview

overview

10

Static

static

1

28f01b474b...d6.rtf

windows7-x64

10

28f01b474b...d6.rtf

windows10-2004-x64

1

Sharing

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General

  • Target

    28f01b474be6aeb345aaca18388a3ad6.rtf

  • Size

    71KB

  • Sample

    240416-hs7bqsbg75

  • MD5

    28f01b474be6aeb345aaca18388a3ad6

  • SHA1

    ca62d1a84fc88a61ab5ec5162219f847ffd4ab70

  • SHA256

    2562b562a8f29256cf16403c893b482838edee61e631639c39a705237046d225

  • SHA512

    6e6fb47442a111643e57167b0e181aa6299362f0d3aaefb79fe5d75338af18798229f178af9a2c25ae50ffae18c6d5eef92770a76f5e4848dc5188bbfccff2e5

  • SSDEEP

    1536:OOE//90vZ4xj50yduAGFbN2ftcO1aWKW/H6yzAZF94BPU:S90Kxj50IuAeQft/1aWKW/ayAt4NU

Score
10/10
remcosremotehostpersistencerat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

rmcnewlistening.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-AK1F22

  • 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

      28f01b474be6aeb345aaca18388a3ad6.rtf

    • Size

      71KB

    • MD5

      28f01b474be6aeb345aaca18388a3ad6

    • SHA1

      ca62d1a84fc88a61ab5ec5162219f847ffd4ab70

    • SHA256

      2562b562a8f29256cf16403c893b482838edee61e631639c39a705237046d225

    • SHA512

      6e6fb47442a111643e57167b0e181aa6299362f0d3aaefb79fe5d75338af18798229f178af9a2c25ae50ffae18c6d5eef92770a76f5e4848dc5188bbfccff2e5

    • SSDEEP

      1536:OOE//90vZ4xj50yduAGFbN2ftcO1aWKW/H6yzAZF94BPU:S90Kxj50IuAeQft/1aWKW/ayAt4NU

    Score
    10/10
    remcosremotehostpersistencerat

    • Remcos

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

      ratremcos

    • Blocklisted process makes network request

    • 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

Discovery

System Information Discovery

3
T1082

Query Registry

2
T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks