Overview

overview

10

Static

static

3

OSE - PO &...01.exe

windows7-x64

10

OSE - PO &...01.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    OSE - PO & FCST - ???-LT24052303183991-01.exe

  • Size

    15.0MB

  • Sample

    240524-bth7zagb7w

  • MD5

    4cbc670c79dddc759b63ded7f36a80e1

  • SHA1

    7bf50c94959846e1c7caf521e697ee2367aabf01

  • SHA256

    1dd45a1200496700a9a9e138a0ecf1625c981855159ceb8624fe69b8bcfe3bb5

  • SHA512

    6bc15e6acbfdcf09e5eefc1fcc02e997ae81c2b9bcbf02df78ba6c3db8c8620130880fa2d6e49a1b3a9e7df2b4f5e428d8cb4326e6679d9e0639dc40ce099535

  • SSDEEP

    24576:y6nVMk+HIj90cmvFMN8O6TXQRfAGWEUAxqnRAIsJumwocd5xShmC+a+OPj:xVz7tWqKTXQiTpsJr/Qx8ec

Score
10/10
remcosremotehostpersistencerat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

b64c611.ddnss.eu:3154

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    uytrs.exe

  • copy_folder

    iu7y6tr

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    true

  • install_flag

    false

  • keylog_crypt

    true

  • keylog_file

    u8tus.dat

  • keylog_flag

    false

  • keylog_folder

    87y6trf

  • mouse_option

    false

  • mutex

    OIUGH6-BFBAXD

  • 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

      OSE - PO & FCST - ???-LT24052303183991-01.exe

    • Size

      15.0MB

    • MD5

      4cbc670c79dddc759b63ded7f36a80e1

    • SHA1

      7bf50c94959846e1c7caf521e697ee2367aabf01

    • SHA256

      1dd45a1200496700a9a9e138a0ecf1625c981855159ceb8624fe69b8bcfe3bb5

    • SHA512

      6bc15e6acbfdcf09e5eefc1fcc02e997ae81c2b9bcbf02df78ba6c3db8c8620130880fa2d6e49a1b3a9e7df2b4f5e428d8cb4326e6679d9e0639dc40ce099535

    • SSDEEP

      24576:y6nVMk+HIj90cmvFMN8O6TXQRfAGWEUAxqnRAIsJumwocd5xShmC+a+OPj:xVz7tWqKTXQiTpsJr/Qx8ec

    Score
    10/10
    remcosremotehostpersistencerat

    • 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

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

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

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