Overview

overview

10

Static

static

8

ACH remittance.xls

windows7-x64

10

ACH remittance.xls

windows10-2004-x64

10

Sharing

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General

  • Target

    ACH remittance.xls

  • Size

    32KB

  • Sample

    220806-hx9mnaeda6

  • MD5

    053dbb0cbcfcb2f96552414b4637a0ac

  • SHA1

    5f8ba5947e41eaf20cbb4cb7e8ac69e140d56b3a

  • SHA256

    56c743180f8459c00a5941dc3fca9c254cce1ea8830c84a617c3e33fbcd30650

  • SHA512

    205c5e76b036bc3143a2a6e27a0d436f5ea2418881685a6cf19ef01cc41bc56156e6961fd7e5b2ed45b67e36f7edb96005714e6da947fffbdd6a22ab474f8e73

Score
10/10
remcosremotehostmacromacro_on_actionrat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

businessculture.dvrlists.com:117

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Remcos-GN4RN2

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      ACH remittance.xls

    • Size

      32KB

    • MD5

      053dbb0cbcfcb2f96552414b4637a0ac

    • SHA1

      5f8ba5947e41eaf20cbb4cb7e8ac69e140d56b3a

    • SHA256

      56c743180f8459c00a5941dc3fca9c254cce1ea8830c84a617c3e33fbcd30650

    • SHA512

      205c5e76b036bc3143a2a6e27a0d436f5ea2418881685a6cf19ef01cc41bc56156e6961fd7e5b2ed45b67e36f7edb96005714e6da947fffbdd6a22ab474f8e73

    Score
    10/10
    remcosremotehostrat

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • Remcos

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

      ratremcos

    • Blocklisted process makes network request

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Loads dropped DLL

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

3
T1012

System Information Discovery

4
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks