Overview

overview

10

Static

static

1

73c5b71d29...2f.rtf

windows7-x64

10

73c5b71d29...2f.rtf

windows10-2004-x64

1

Sharing

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General

  • Target

    73c5b71d2923b11a8b262321c6229520c93115f82c78d742f041a650725d482f.zip

  • Size

    20KB

  • Sample

    240402-qtstqsbe51

  • MD5

    807c0c06e556e3c3e7711ebfd247ae5a

  • SHA1

    9f93e11cc31f9dc97bf8d63264a05d30f89238bb

  • SHA256

    5cddac4ad1172af8fe40dc2b40160fbdfebbf2023cf2d15a6e8a61ef7629d1be

  • SHA512

    7a025fd30755256dce76e7ebe0231860c8b09e0978dde62ba35178a95b7e466a65f2de9aa4f49390626e8b599470f27255989fbaf22e5659b25e2c42f8c766db

  • SSDEEP

    384:Y/09Ycoa95s5fQkih6fxGhglslLk564eloAbEzFoC1NV:Y8KqW5fQ50pGhglslLf4Eo7NV

Score
10/10
remcosremotehostcollectionpersistenceratspywarestealer

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

107.172.31.178:2404

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-NVSJ5U

  • 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

      73c5b71d2923b11a8b262321c6229520c93115f82c78d742f041a650725d482f.rtf

    • Size

      63KB

    • MD5

      b5b2948d407676eab86b1152e7ce5ec4

    • SHA1

      85de7e562d97c36b9318393fd6185df6b1ba55b9

    • SHA256

      73c5b71d2923b11a8b262321c6229520c93115f82c78d742f041a650725d482f

    • SHA512

      b2048e775bccc0f0cc144fcfaa4e3067fa4ed2613f1e152323673c6497a82815d2ef366d29289214cf5f0007a3c8537af6f40b6ab07a1a936ed4f4612be9725a

    • SSDEEP

      1536:fgoIW1uYod+RuUl9Zh7teyDdvqMhRSiupwk8uXjlh17AY9j:otyuYod+RuAZh84vSiowk8uXjlh17AYR

    Score
    10/10
    remcosremotehostcollectionpersistenceratspywarestealer

    • 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

    • 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

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Exploitation for Client Execution

1
T1203

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

2
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

System Information Discovery

3
T1082

Query Registry

2
T1012

Lateral Movement

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks