Overview

overview

10

Static

static

Fully Sing...t.xlsx

windows7-x64

10

Fully Sing...t.xlsx

windows10-2004-x64

1

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General

  • Target

    Fully Singed Aggrement.xlsx

  • Size

    742KB

  • Sample

    221028-qxx8mafff3

  • MD5

    f7afc6233a1a8e0607449a7552748722

  • SHA1

    2c448ddfddb4b1c0481698d5181b6295633e1777

  • SHA256

    fa167d133cb53da59f334ef6b12b264ef4e716a595084b6f922c4e447ea3def0

  • SHA512

    2609c7ff2590ab5a1987462045b6e92188d52724fc0ddb91f6365e0446ccf2c9381de014893a9b1f77a454967de1e128aae725b6e3be99474d2b8c3e60cc3a51

  • SSDEEP

    12288:38TesV8h7Hsh1mYDQlH4Fg4c6E3/pJ+QBC81JdzBffAHmZ76WW+y6ATWDmDjiYj:3OEzsh1msQlH74YpMiC81rJbbATb1j

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

      Fully Singed Aggrement.xlsx

    • Size

      742KB

    • MD5

      f7afc6233a1a8e0607449a7552748722

    • SHA1

      2c448ddfddb4b1c0481698d5181b6295633e1777

    • SHA256

      fa167d133cb53da59f334ef6b12b264ef4e716a595084b6f922c4e447ea3def0

    • SHA512

      2609c7ff2590ab5a1987462045b6e92188d52724fc0ddb91f6365e0446ccf2c9381de014893a9b1f77a454967de1e128aae725b6e3be99474d2b8c3e60cc3a51

    • SSDEEP

      12288:38TesV8h7Hsh1mYDQlH4Fg4c6E3/pJ+QBC81JdzBffAHmZ76WW+y6ATWDmDjiYj:3OEzsh1msQlH74YpMiC81rJbbATb1j

    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