Overview

overview

10

Static

static

PO 186603,...82.exe

windows7_x64

10

PO 186603,...82.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    eeb372866b2f0cf0aef6158442868f75ba272b57fcd8a9de5d05f9fe93bc00c7

  • Size

    177KB

  • Sample

    220521-ngzemsghbj

  • MD5

    ff7b7b13f645859595b1808715b9b02e

  • SHA1

    18852053c94f5ef13cd71e5afb6831dd2780a3bc

  • SHA256

    eeb372866b2f0cf0aef6158442868f75ba272b57fcd8a9de5d05f9fe93bc00c7

  • SHA512

    2e5f9714172b5a692052de587f2006c42638838283f01d0750c02d55b4ec10846986085cf23b9f296404c148575a392f653dfbe58a01400e904b9943f13b2af3

Score
10/10
remcoshostpersistenceratrezer0

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

C2

omari12.duckdns.org:9046

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    remcos.exe

  • copy_folder

    remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    true

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    remcos_ooesociikieaxms

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

  • take_screenshot_title

Targets

    • Target

      PO 186603, PO 18582.exe

    • Size

      232KB

    • MD5

      2dfe76a3750a1e91f198902086d81249

    • SHA1

      012cc21f1410e324533d1a883bbd60d4abe3059c

    • SHA256

      3ce66a4e58b435bcd38a1272823e97f7beac54d679ff0af1224187f032360e87

    • SHA512

      717031cd3c1590d5ea645964349df99786e3e81b12f6cf23812db50eb1ea6df7a3ec65495c1b5e08f8338563384812c6e1a8594ec15a9dac21ca847520eb020d

    Score
    10/10
    remcoshostpersistenceratrezer0

    • Remcos

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

      ratremcos

    • ReZer0 packer

      Detects ReZer0, a packer with multiple versions used in various campaigns.

      rezer0

    • 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

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Remote System Discovery

1
T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks