Overview

overview

10

Static

static

1

Drejn255.vbe

windows7-x64

10

Drejn255.vbe

windows10-2004-x64

10

Sharing

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General

  • Target

    Drejn255.vbe

  • Size

    89KB

  • Sample

    230206-lfc4xadb57

  • MD5

    8cf3e9eb785e9a3cefd64443a1f30bd2

  • SHA1

    74583b42b8b8e1883bd2b055d5c560e18d3d71f0

  • SHA256

    56c0cea73bf798f06be6c3cd0c834c0c7446a65e26be683ca66ec0347818fb15

  • SHA512

    ae7f3558cae8640b66465a3f3c12ac672bfdacb3f2509bb619f75156f7569e289d67e3ef78b30331b24b58aa41d9d9c9e2fc1b30f712903f77c518d3b56bb4ec

  • SSDEEP

    1536:VATmpA5OwzckQJVtIGMT8mTH/Wxfi0PS6aW1VHpWAFi:STiyDzKJE8mTH+xfi0PS6HVJli

Score
10/10
guloaderremcosremotehostcollectiondownloaderpersistencerat

Malware Config

Extracted

Language
ps1
Source
URLs
exe.dropper

https://drive.google.com/uc?export=download&id=14hXc2YnYQ5ZQ9yYI2eO9_NIGnUr-R83L

Extracted

Family

remcos

Botnet

RemoteHost

C2

185.236.76.65:50544

Attributes
  • audio_folder

    MicRecords

  • 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

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-FBR71N

  • 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

      Drejn255.vbe

    • Size

      89KB

    • MD5

      8cf3e9eb785e9a3cefd64443a1f30bd2

    • SHA1

      74583b42b8b8e1883bd2b055d5c560e18d3d71f0

    • SHA256

      56c0cea73bf798f06be6c3cd0c834c0c7446a65e26be683ca66ec0347818fb15

    • SHA512

      ae7f3558cae8640b66465a3f3c12ac672bfdacb3f2509bb619f75156f7569e289d67e3ef78b30331b24b58aa41d9d9c9e2fc1b30f712903f77c518d3b56bb4ec

    • SSDEEP

      1536:VATmpA5OwzckQJVtIGMT8mTH/Wxfi0PS6aW1VHpWAFi:STiyDzKJE8mTH+xfi0PS6HVJli

    Score
    10/10
    guloaderremcosremotehostcollectiondownloaderpersistencerat

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

      downloaderguloader

    • Remcos

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

      ratremcos

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Nirsoft

    • Blocklisted process makes network request

    • Checks QEMU agent file

      Checks presence of QEMU agent, possibly to detect virtualization.

    • Checks computer location settings

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

    • Accesses Microsoft Outlook accounts

      collection

    • Adds Run key to start application

      persistence

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • 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

2
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Email Collection

1
T1114

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Tasks