Overview

overview

10

Static

static

1

och_antivirus.exe

windows7-x64

6

och_antivirus.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    och_antivirus.exe

  • Size

    17.0MB

  • Sample

    240422-n4j88sbb4s

  • MD5

    41d3613c3bd70904c8ed605bed978987

  • SHA1

    8a44183362dc9dd222cb92b0e0a33b7eb3bc2c34

  • SHA256

    69b943efb0b8f871b591ce1994bae3e550701a209f79c4d31e2451a69771b166

  • SHA512

    bb80f240d675a3c8b0b756f9609bd146faa77bd1c4f23dd0a63825405166908af8aff621e2510e5f67a41e4ea181201ae50a000a3b5bc5ef68dd4806532172b1

  • SSDEEP

    196608:H0bq45mXYPrOLaw1alaHwSiLPpizFNwR3LZBh51ZC1uBaPENjZZ:Ubq4oojOLahLhr9dDZwujL

Score
10/10
remcosremotehostevasionrattrojan

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

178.33.57.155:443

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-PM1AI7

  • 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

      och_antivirus.exe

    • Size

      17.0MB

    • MD5

      41d3613c3bd70904c8ed605bed978987

    • SHA1

      8a44183362dc9dd222cb92b0e0a33b7eb3bc2c34

    • SHA256

      69b943efb0b8f871b591ce1994bae3e550701a209f79c4d31e2451a69771b166

    • SHA512

      bb80f240d675a3c8b0b756f9609bd146faa77bd1c4f23dd0a63825405166908af8aff621e2510e5f67a41e4ea181201ae50a000a3b5bc5ef68dd4806532172b1

    • SSDEEP

      196608:H0bq45mXYPrOLaw1alaHwSiLPpizFNwR3LZBh51ZC1uBaPENjZZ:Ubq4oojOLahLhr9dDZwujL

    Score
    10/10
    evasiontrojanremcosremotehostrat

    • Remcos

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

      ratremcos

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Checks whether UAC is enabled

      evasiontrojan

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks