Overview

overview

10

Static

static

d959b48082...c0.pdf

windows7-x64

10

d959b48082...c0.pdf

windows10-2004-x64

1

Sharing

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General

  • Target

    7792776136.zip

  • Size

    301KB

  • Sample

    220729-tl7vgabhcp

  • MD5

    c4623e5f274f69b0099bdda1dfc12935

  • SHA1

    2e18b04676a7e1dded4096886ab987a1c5b4762a

  • SHA256

    727b21d3161c37d2e70a9f367d72d41fac891153540bbebbe9cac7c13367b9b6

  • SHA512

    6a6a645d87f906a0762f8ff98c8e10101483a115230e67cadb8802851718caba50b05c39c4681dc8e094b27fde68d7a02ab13317bf2f4f323c4fe720eb72bff3

Score
10/10
remcosxppersistencerat

Malware Config

Extracted

Family

remcos

Botnet

XP

C2

xpremcuz300622.ddns.net:3542

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    oos.exe

  • delete_file

    false

  • hide_file

    true

  • hide_keylog_file

    false

  • install_flag

    true

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Remcos-MMP2I7

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    kkl

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      d959b480824d3f572e43bfdc6662d177353443bac3210448c8b02c9a01a3bec0

    • Size

      339KB

    • MD5

      80a1c58f87a5546e12d09e5cbbac80e9

    • SHA1

      4e92f9231b72fd64588e07428f84463941ae7355

    • SHA256

      d959b480824d3f572e43bfdc6662d177353443bac3210448c8b02c9a01a3bec0

    • SHA512

      b1bd2df11b6c83aee5aabd7cd2650f9f9bb0b5979501befa478aea8a16c18e6a52fc856c834b2173565c4cf190e644ad82e750f5ca2c94456e21dd9b23a54260

    Score
    10/10
    remcosxppersistencerat

    • Remcos

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

      ratremcos

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Abuses OpenXML format to download file from external location

    • Loads dropped DLL

    • Uses the VBS compiler for execution

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1
T1064

Exploitation for Client Execution

1
T1203

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Scripting

1
T1064

Modify Registry

2
T1112

Credential Access

Discovery

System Information Discovery

3
T1082

Query Registry

2
T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks