Overview

overview

10

Static

static

3

f9905175d2...c9.exe

windows7-x64

10

f9905175d2...c9.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    1a656b2cbd02513830d9652917a1c77c648d28a4c82f83dc3178a0150e6bf5a0

  • Size

    833KB

  • Sample

    240417-qrejbshe63

  • MD5

    965cd7c4cbd82c6e4a45958d199e4cc8

  • SHA1

    608896cbf123dcea9886d64d1135fba0ebd63bb8

  • SHA256

    1a656b2cbd02513830d9652917a1c77c648d28a4c82f83dc3178a0150e6bf5a0

  • SHA512

    6b89f72794dbe72652fee14e7ffad03961da3b3bfb96f32a5116700439718ae51f14b865740bf29b25bab8aabd6f22a36582c1527fbea2689cbc0cbb2b1cf768

  • SSDEEP

    24576:Zt3tv4jY4PTdmbJHYtyn8HN1qLk4n+Cy7WF:Zt3tvv4bdKtEyn8HNoI4Ry7WF

Score
10/10
remcos7272626evasionpersistencerattrojan

Malware Config

Extracted

Family

remcos

Botnet

7272626

C2

windowsserverfebarch.duckdns.org:5841

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

    72626-GNX3E4

  • 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

      f9905175d2bba89cc70840195fe3ab71f3da27cb466e532f5e58c0b89f6880c9.exe

    • Size

      844KB

    • MD5

      8bddc2d176b374df21988621d1e34229

    • SHA1

      e9482bcfa0106160bd0d8c535082ec2a64d8e620

    • SHA256

      f9905175d2bba89cc70840195fe3ab71f3da27cb466e532f5e58c0b89f6880c9

    • SHA512

      9f597e449f017d184d726f4da8ce1a2471ff6dcf6570588790320394469110b76a1759d6cdb7f24b1904b5136b3078a390bb5e31405ff7904e989479ab9b5dd9

    • SSDEEP

      12288:sp4+EpVjZsEpt4Q8gn/pu6JnTzk9Sv+LWK+WGnsVNvlkYkBCdonHi6NQkt8YfhvW:m4Fpl+yD8c/sXwnmYk4HtSkt8WhMUPQ

    Score
    10/10
    remcos7272626evasionpersistencerattrojan

    • Remcos

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

      ratremcos

    • UAC bypass

      evasiontrojan

    • Windows security bypass

      evasiontrojan

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Windows security modification

      evasiontrojan

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1
T1053

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Impair Defenses

3
T1562

Disable or Modify Tools

3
T1562.001

Modify Registry

5
T1112

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks