Overview

overview

10

Static

static

1

e71210a8cb...cf.exe

windows7-x64

10

e71210a8cb...cf.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    e71210a8cb9a16fe0b777e20ab8750cf.bin

  • Size

    490KB

  • Sample

    230327-csa1msbc53

  • MD5

    e71210a8cb9a16fe0b777e20ab8750cf

  • SHA1

    16ed028a56c4a6b008f66062e574664020cf1d30

  • SHA256

    a65de678bfc68fa18936e353ba96fed7f00134a30ead01a45f88e10adb33be9b

  • SHA512

    6fa9b47082d9212f669563806108e682fda1fdd71b343e21fd93e2163512024d560524bf2b8ebde927035447d85ca0ce8aa925b6b216c0dcb38743b2ea3e42ab

  • SSDEEP

    12288:OYyF6L25vWOfQqxa0snt/Rt/04kRVCkv2ey9bdA6NT1:OYyIKNWOYqxZstkXRVCk+B9a6NB

Score
10/10
remcosfirst-sendcollectionpersistenceratspywarestealer

Malware Config

Extracted

Family

remcos

Botnet

First-Send

C2

top.not4abuse1.xyz:1558

sub.not4abuse1.xyz:1558
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

    true

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    rmcs

  • mouse_option

    false

  • mutex

    Rmc-4RNJ4J

  • screenshot_crypt

    false

  • screenshot_flag

    true

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    20

  • startup_value

    Remcos

  • take_screenshot_option

    true

  • take_screenshot_time

    5

  • take_screenshot_title

    Mail;Payment;Bank

Targets

    • Target

      e71210a8cb9a16fe0b777e20ab8750cf.bin

    • Size

      490KB

    • MD5

      e71210a8cb9a16fe0b777e20ab8750cf

    • SHA1

      16ed028a56c4a6b008f66062e574664020cf1d30

    • SHA256

      a65de678bfc68fa18936e353ba96fed7f00134a30ead01a45f88e10adb33be9b

    • SHA512

      6fa9b47082d9212f669563806108e682fda1fdd71b343e21fd93e2163512024d560524bf2b8ebde927035447d85ca0ce8aa925b6b216c0dcb38743b2ea3e42ab

    • SSDEEP

      12288:OYyF6L25vWOfQqxa0snt/Rt/04kRVCkv2ey9bdA6NT1:OYyIKNWOYqxZstkXRVCk+B9a6NB

    Score
    10/10
    remcosfirst-sendpersistenceratcollectionspywarestealer

    • 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

    • 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

    • Accesses Microsoft Outlook accounts

      collection

    • 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

Credentials in Files

1
T1081

Discovery

System Information Discovery

1
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Exfiltration

Command and Control

Impact

Tasks