Overview

overview

10

Static

static

1

OUR REF NO...df.exe

windows7-x64

10

OUR REF NO...df.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    OUR REF NO. S03593.pdf.exe

  • Size

    1.0MB

  • Sample

    230306-lyv3fabf37

  • MD5

    6ffcaa9d57ed36d74cac808ffc5fc9b6

  • SHA1

    89c88ac7b1420300e2f63b5a7f863c7f672ba959

  • SHA256

    f7361813973bf5358dfe900784ab0c2cddd70ad3c1bfdeac1b1de494ffb2a3fa

  • SHA512

    49f0afba5127f6caef4a78c3c1450c362543fa88b6eb9921d3621760912914b21aa19e55c3e780c13b21693e645bd151eeb83d58e03746f26434decf8d434676

  • SSDEEP

    24576:y/OFMbQyXyXhZVTR0z71BM2TRkB6huiR3BSpNoVf0LTsIBMNjnNNOhAe/S0:dHyXyXQHFTRkB6hulb80

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

      OUR REF NO. S03593.pdf.exe

    • Size

      1.0MB

    • MD5

      6ffcaa9d57ed36d74cac808ffc5fc9b6

    • SHA1

      89c88ac7b1420300e2f63b5a7f863c7f672ba959

    • SHA256

      f7361813973bf5358dfe900784ab0c2cddd70ad3c1bfdeac1b1de494ffb2a3fa

    • SHA512

      49f0afba5127f6caef4a78c3c1450c362543fa88b6eb9921d3621760912914b21aa19e55c3e780c13b21693e645bd151eeb83d58e03746f26434decf8d434676

    • SSDEEP

      24576:y/OFMbQyXyXhZVTR0z71BM2TRkB6huiR3BSpNoVf0LTsIBMNjnNNOhAe/S0:dHyXyXQHFTRkB6hulb80

    Score
    10/10
    remcosxppersistencerat

    • 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 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

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks