Overview

overview

10

Static

static

8

Remittance Advice.xls

windows7_x64

Sharing

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General

  • Target

    Remittance Advice.xls

  • Size

    119KB

  • Sample

    210713-xcyarbxkx6

  • MD5

    86d04735e11e91474dc5a8b20f5d895c

  • SHA1

    26dca4cf90a1e41bc19c2724e1c5aa7fb524683a

  • SHA256

    c7386a5b02bf56ea6569d4c0a4544694142fb8afd4e3118999880aa8df6ff025

  • SHA512

    7e5d478b14972d3ae025fe2c8b8100029e6beb055749687324dfdfb837dc97681d144909f9d354e317cb70a9ecf2f2f5fa0ec42f869bcaf9370a8daf7a507cf2

Score
10/10
remcosjune buildmacromacro_on_actionratspywarestealerxlm

Malware Config

Extracted

Family

remcos

Version

3.1.5 Pro

Botnet

JUNE BUILD

C2

eter101.dvrlists.com:2050

eter103.dvrlists.com:2050
Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    5

  • connect_interval

    3

  • copy_file

    explorer.exe

  • copy_folder

    Windows

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • install_path

    %UserProfile%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    rem

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    backup-4JVH3M

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    iexplorer

  • take_screenshot_option

    false

  • take_screenshot_time

    5

  • take_screenshot_title

    wikipedia;solitaire;

Targets

    • Target

      Remittance Advice.xls

    • Size

      119KB

    • MD5

      86d04735e11e91474dc5a8b20f5d895c

    • SHA1

      26dca4cf90a1e41bc19c2724e1c5aa7fb524683a

    • SHA256

      c7386a5b02bf56ea6569d4c0a4544694142fb8afd4e3118999880aa8df6ff025

    • SHA512

      7e5d478b14972d3ae025fe2c8b8100029e6beb055749687324dfdfb837dc97681d144909f9d354e317cb70a9ecf2f2f5fa0ec42f869bcaf9370a8daf7a507cf2

    Score
    10/10
    remcosjune buildratspywarestealer

    • 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

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • Nirsoft

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Suspicious use of SetThreadContext

    behavioral1

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

System Information Discovery

2
T1082

Query Registry

1
T1012

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Tasks