Overview

overview

10

Static

static

3

rZD-25-05-02-Soto.exe

windows7-x64

7

rZD-25-05-02-Soto.exe

windows10-2004-x64

10

$PLUGINSDI...em.dll

windows7-x64

3

$PLUGINSDI...em.dll

windows10-2004-x64

3

Sharing

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General

  • Target

    rZD-25-05-02-Soto.bat

  • Size

    960KB

  • Sample

    240206-y9ssnsfdh5

  • MD5

    22d8cb9eff064846c4d9d10c405d899a

  • SHA1

    40868d348bf6480d6cf3b4b1cc8ecb66f16b48f8

  • SHA256

    71c691a6f747c96dac3ed26194a58123b8200be734dae7bbbf0ade19863d737f

  • SHA512

    c975c70c4b365b82b6a1390885e6e8e03418cf98ade2c13bf7c2235c655083d8d7105bd0fbb277eff1c65f58dd287bbdefa12ebb1a56af94d6520846ac85e763

  • SSDEEP

    24576:A+avBXTCVnsXjgYPioSAaowCNtn8aJ4B/F3YdgDmIcn:TavBXTptSLowOa19Ydkcn

Score
10/10
guloaderremcos24downloaderpersistencerat

Malware Config

Extracted

Family

remcos

Botnet

24

C2

162.218.122.24:5707

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-A49MY7

  • 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

      rZD-25-05-02-Soto.bat

    • Size

      960KB

    • MD5

      22d8cb9eff064846c4d9d10c405d899a

    • SHA1

      40868d348bf6480d6cf3b4b1cc8ecb66f16b48f8

    • SHA256

      71c691a6f747c96dac3ed26194a58123b8200be734dae7bbbf0ade19863d737f

    • SHA512

      c975c70c4b365b82b6a1390885e6e8e03418cf98ade2c13bf7c2235c655083d8d7105bd0fbb277eff1c65f58dd287bbdefa12ebb1a56af94d6520846ac85e763

    • SSDEEP

      24576:A+avBXTCVnsXjgYPioSAaowCNtn8aJ4B/F3YdgDmIcn:TavBXTptSLowOa19Ydkcn

    Score
    10/10
    persistenceguloaderremcos24downloaderrat

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

      downloaderguloader

    • Remcos

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

      ratremcos

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Drops file in System32 directory

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

    • Target

      $PLUGINSDIR/System.dll

    • Size

      12KB

    • MD5

      0d7ad4f45dc6f5aa87f606d0331c6901

    • SHA1

      48df0911f0484cbe2a8cdd5362140b63c41ee457

    • SHA256

      3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca

    • SHA512

      c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9

    • SSDEEP

      192:1enY0LWelt70elWjvfstJcVtwtYbjnIOg5AaDnbC7ypXhtIj:18PJlt70esj0Mt9vn6ay6

    Score
    3/10
    behavioral3behavioral4

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

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

1
T1112

Credential Access

Discovery

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks