Overview

overview

10

Static

static

1

2b05753bc6..._JC.js

windows7-x64

8

2b05753bc6..._JC.js

windows10-2004-x64

10

Sharing

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General

  • Target

    2b05753bc632ec1b4f66631be_JC.unknown

  • Size

    2KB

  • Sample

    230721-vf67esfh9t

  • MD5

    e040670bac3e2ee10dc266c6bf6c07d9

  • SHA1

    5a63414e2485bce19531562cbf033a83bcc2580e

  • SHA256

    2b05753bc632ec1b4f66631be14ddd5757a56cb5d1593b7c86f386b3e8672968

  • SHA512

    4b717f54dea8e631051f78f6687c3eecf1d4dabdc9ee798d61ed6b3c96581b9a8a5055d5ac6527a463a9bde0b2e14b9b360ee9e60d9312a42d9b67a464442d5d

Score
10/10
remcosbtcpersistenceratupx

Malware Config

Extracted

Family

remcos

Botnet

BTC

C2

zoonm.ddns.net:9001

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    vlc.exe

  • copy_folder

    vlc

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-6FL95Y

  • 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

      2b05753bc632ec1b4f66631be_JC.unknown

    • Size

      2KB

    • MD5

      e040670bac3e2ee10dc266c6bf6c07d9

    • SHA1

      5a63414e2485bce19531562cbf033a83bcc2580e

    • SHA256

      2b05753bc632ec1b4f66631be14ddd5757a56cb5d1593b7c86f386b3e8672968

    • SHA512

      4b717f54dea8e631051f78f6687c3eecf1d4dabdc9ee798d61ed6b3c96581b9a8a5055d5ac6527a463a9bde0b2e14b9b360ee9e60d9312a42d9b67a464442d5d

    Score
    10/10
    remcosbtcpersistenceratupx

    • Remcos

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

      ratremcos

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx

    • Adds Run key to start application

      persistence

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

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

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Remote System Discovery

1
T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Resource Development

Reconnaissance

Tasks