Overview

overview

10

Static

static

tmp.exe

windows7-x64

10

tmp.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    tmp

  • Size

    2.4MB

  • Sample

    220808-w1z5aaecgj

  • MD5

    05f6fa39a293a904e53aad577744ee8e

  • SHA1

    99126bc0831b9d49eb46fd6dcdf7a12376db415d

  • SHA256

    928f75ac182baea6734e08cdd425bcea33bf7f27a43922b9f693d199d7aee550

  • SHA512

    3136c7a911b07496d0f85885780edf684592ec265173801a1a472406a8b73bc1bebe0fa48202ded9b83acb8a0f633d6b1ce1657adc6a5775ca8946010d76df9b

Score
10/10
remcosremotehostpersistencerat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

vivald21.hopto.org:3240

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-9HMSCN

  • 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

      tmp

    • Size

      2.4MB

    • MD5

      05f6fa39a293a904e53aad577744ee8e

    • SHA1

      99126bc0831b9d49eb46fd6dcdf7a12376db415d

    • SHA256

      928f75ac182baea6734e08cdd425bcea33bf7f27a43922b9f693d199d7aee550

    • SHA512

      3136c7a911b07496d0f85885780edf684592ec265173801a1a472406a8b73bc1bebe0fa48202ded9b83acb8a0f633d6b1ce1657adc6a5775ca8946010d76df9b

    Score
    10/10
    remcosremotehostpersistencerat

    • Remcos

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

      ratremcos

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks