Overview

overview

10

Static

static

6d8d1fd651...4.xlsx

windows7-x64

10

6d8d1fd651...4.xlsx

windows10-2004-x64

1

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General

  • Target

    6d8d1fd65107d64556278ebe3f3abc553dcc1c4806bb64ee267973e7155465f4.xlsx

  • Size

    707KB

  • Sample

    221103-qmadtachbm

  • MD5

    43e45bd39f26df0a62fd46e74029ac29

  • SHA1

    0c3a104ed323ffa4d07bdab19bb132dc1c10936e

  • SHA256

    6d8d1fd65107d64556278ebe3f3abc553dcc1c4806bb64ee267973e7155465f4

  • SHA512

    c0a8e3d364ff83d0ed19aee663e89b5802742f02d5c3964718fb4a15f788561af6a745f3bd75849e16d2dcb00dd22a319da684b29f35b400a74bc04329e667a2

  • SSDEEP

    12288:DkWI3guRYq00GtRXrDSSGaPgaEcV4IFit5/eFW9jo2PP+yU55IzMn9EwBWt:DUgulKtRaSDdHAt5CWGF54zt

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

      6d8d1fd65107d64556278ebe3f3abc553dcc1c4806bb64ee267973e7155465f4.xlsx

    • Size

      707KB

    • MD5

      43e45bd39f26df0a62fd46e74029ac29

    • SHA1

      0c3a104ed323ffa4d07bdab19bb132dc1c10936e

    • SHA256

      6d8d1fd65107d64556278ebe3f3abc553dcc1c4806bb64ee267973e7155465f4

    • SHA512

      c0a8e3d364ff83d0ed19aee663e89b5802742f02d5c3964718fb4a15f788561af6a745f3bd75849e16d2dcb00dd22a319da684b29f35b400a74bc04329e667a2

    • SSDEEP

      12288:DkWI3guRYq00GtRXrDSSGaPgaEcV4IFit5/eFW9jo2PP+yU55IzMn9EwBWt:DUgulKtRaSDdHAt5CWGF54zt

    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

    • 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

Exploitation for Client Execution

1
T1203

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

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