Overview

overview

10

Static

static

3

7903ae5797...04.exe

windows7-x64

7

7903ae5797...04.exe

windows10-2004-x64

10

$PLUGINSDI...LL.dll

windows7-x64

3

$PLUGINSDI...LL.dll

windows10-2004-x64

3

$PLUGINSDI...em.dll

windows7-x64

3

$PLUGINSDI...em.dll

windows10-2004-x64

3

Sharing

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General

  • Target

    7903ae5797aeb3fc2438a2681ce14e5957b389597a8b63c72d14de1191e27604.exe

  • Size

    493KB

  • Sample

    240826-m2ncfa1frk

  • MD5

    d4063f73e358bbd79f27d6f4db61b0e8

  • SHA1

    f404f1aa5855ac5a32b2736c03b71a8fe88ab230

  • SHA256

    7903ae5797aeb3fc2438a2681ce14e5957b389597a8b63c72d14de1191e27604

  • SHA512

    a8551cebfd83081e9817374c7571b7938b9bd433534449bcce364843d50a87017d7c82205ed5aa313a1f9f477fbdc97dbc4ab8da5bbc7a6e8b4610bcf1bcabbd

  • SSDEEP

    6144:XYa6qP7JgKpEWLXH1Q/nFoE965vjFckALHZ1S9d+Z/2aYAqrGg2ZZs78LofX0oRM:XYk1XH1OnFV/BHTMd+ZO8qrIvcFdlgVv

Score
10/10
guloaderremcosbenchaodiscoverydownloaderrat

Malware Config

Extracted

Family

remcos

Botnet

benchao

C2

tochisglobal.ddns.net:6426

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-9R4HLX

  • 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

      7903ae5797aeb3fc2438a2681ce14e5957b389597a8b63c72d14de1191e27604.exe

    • Size

      493KB

    • MD5

      d4063f73e358bbd79f27d6f4db61b0e8

    • SHA1

      f404f1aa5855ac5a32b2736c03b71a8fe88ab230

    • SHA256

      7903ae5797aeb3fc2438a2681ce14e5957b389597a8b63c72d14de1191e27604

    • SHA512

      a8551cebfd83081e9817374c7571b7938b9bd433534449bcce364843d50a87017d7c82205ed5aa313a1f9f477fbdc97dbc4ab8da5bbc7a6e8b4610bcf1bcabbd

    • SSDEEP

      6144:XYa6qP7JgKpEWLXH1Q/nFoE965vjFckALHZ1S9d+Z/2aYAqrGg2ZZs78LofX0oRM:XYk1XH1OnFV/BHTMd+ZO8qrIvcFdlgVv

    Score
    10/10
    discoveryguloaderremcosbenchaodownloaderrat

    • 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

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

    • Target

      $PLUGINSDIR/LangDLL.dll

    • Size

      5KB

    • MD5

      68b287f4067ba013e34a1339afdb1ea8

    • SHA1

      45ad585b3cc8e5a6af7b68f5d8269c97992130b3

    • SHA256

      18e8b40ba22c7a1687bd16e8d585380bc2773fff5002d7d67e9485fcc0c51026

    • SHA512

      06c38bbb07fb55256f3cdc24e77b3c8f3214f25bfd140b521a39d167113bf307a7e8d24e445d510bc5e4e41d33c9173bb14e3f2a38bc29a0e3d08c1f0dca4bdb

    • SSDEEP

      48:S46+/nTKYKxbWsptIpBtWZ0iV8jAWiAJCvxft2O2B8mFofjLl:zFuPbOBtWZBV8jAWiAJCdv2Cm0L

    Score
    3/10
    discovery
    behavioral3behavioral4

    • Target

      $PLUGINSDIR/System.dll

    • Size

      12KB

    • MD5

      cff85c549d536f651d4fb8387f1976f2

    • SHA1

      d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e

    • SHA256

      8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8

    • SHA512

      531d6328daf3b86d85556016d299798fa06fefc81604185108a342d000e203094c8c12226a12bd6e1f89b0db501fb66f827b610d460b933bd4ab936ac2fd8a88

    • SSDEEP

      192:Zjvco0qWTlt70m5Aj/lQ0sEWD/wtYbBHFNaDybC7y+XBz0QPi:FHQlt70mij/lQRv/9VMjzr

    Score
    3/10
    discovery
    behavioral5behavioral6

MITRE ATT&CK Enterprise v15

Tasks