Overview

overview

10

Static

static

3

6fcb2b9e05...27.exe

windows7-x64

10

6fcb2b9e05...27.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    665529172f4fb478a8c91019a5086e3d0d776a628b7fe0c0e5453aa580921171

  • Size

    890KB

  • Sample

    240417-r8efbsed3y

  • MD5

    81c7e32e43cb079daaa9565e7182efb4

  • SHA1

    f9bcc878fbaa333ae7bcd024c516e23ea8b19439

  • SHA256

    665529172f4fb478a8c91019a5086e3d0d776a628b7fe0c0e5453aa580921171

  • SHA512

    369a24dcc6dc46775d3292fc32b2472a324f1e79c4ba0d78f90fcdcb01f9fadd98f476cac2f85239c82573abbb0bfc4ff2d3ba9006386a214cca22bdf898796e

  • SSDEEP

    24576:RsZ5RXER9btaOEPhIddblOOHjPb3QqGoq1X1T:RsZ5JAtaOEPOPPH/Lq1X1

Score
10/10
remcosremotehostpersistencerat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

104.250.180.178:7902

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    Skyreal.exe

  • copy_folder

    Skyreal

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Sky-K7LT69

  • 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

      6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe

    • Size

      934KB

    • MD5

      7cdb1da63c9ff18665e4a85fec748fcd

    • SHA1

      fa49423cb84debb5c378d89c88781c286f4f8e56

    • SHA256

      6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827

    • SHA512

      3ea3fca56456711eb1095f525be927ce4fa3cbdd68fa668078ba543799dc00e0d806d7291986a321303eb395a446c38898574e57d6fc44b18961c08903c68a58

    • SSDEEP

      12288:9J5Qyg1q3ZzWW1O5tmOy4nY9LIvpTo+CmqLvRDVlR9VAqF63hvWCndZl6lXDj:PGyuqAEVApTImalR9WFhuCdTy3

    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

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

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks