Overview

overview

10

Static

static

10

tmp.exe

windows7-x64

10

tmp.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    tmp

  • Size

    19KB

  • Sample

    230129-2wewfahf5s

  • MD5

    17abf0697eea43427b7e0ea295a09c2f

  • SHA1

    9665076d470f2c614f58f36839591347f4236668

  • SHA256

    1060b71f9fd78f5d283b8295def74b2b1457fb4949815fa8442904cd75329d4a

  • SHA512

    dbf7a7bbf3488300ad688260cc2aa33e0fe4ef82b2ac430b2b4d0661e20f5e7259bf456e478ab1c3cc0120a7b33acf97bbffcc6e8c74e694f1785395635a25d4

  • SSDEEP

    192:FPLL2GSnvjtt6BtFIEZtltPtptUtCttttZ6fWdZAphAtttWnTC/F:9fSvW+hhnG/

Score
10/10
purecrypterremcosmstoxdownloaderloaderrat

Malware Config

Extracted

Family

purecrypter

C2

http://121.4.69.26:53712/Sjewbm.dat

Extracted

Family

remcos

Botnet

MStox

C2

80.66.75.126:53813

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    17

  • connect_interval

    8

  • 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-6QBZSN

  • 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

      tmp

    • Size

      19KB

    • MD5

      17abf0697eea43427b7e0ea295a09c2f

    • SHA1

      9665076d470f2c614f58f36839591347f4236668

    • SHA256

      1060b71f9fd78f5d283b8295def74b2b1457fb4949815fa8442904cd75329d4a

    • SHA512

      dbf7a7bbf3488300ad688260cc2aa33e0fe4ef82b2ac430b2b4d0661e20f5e7259bf456e478ab1c3cc0120a7b33acf97bbffcc6e8c74e694f1785395635a25d4

    • SSDEEP

      192:FPLL2GSnvjtt6BtFIEZtltPtptUtCttttZ6fWdZAphAtttWnTC/F:9fSvW+hhnG/

    Score
    10/10
    purecrypterremcosmstoxdownloaderloaderrat

    • Detect PureCrypter injector

      loader

    • PureCrypter

      PureCrypter is a .NET malware loader first seen in early 2021.

      loaderdownloaderpurecrypter

    • Remcos

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

      ratremcos

    • Checks computer location settings

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

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks