Overview

overview

10

Static

static

a34ff0fbcb...bd.exe

windows7-x64

10

a34ff0fbcb...bd.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    a34ff0fbcbc0bf49288aa95c9a394a65e8024d0cd20869358c9bed56d23d4ebd.exe

  • Size

    971KB

  • Sample

    230110-n32f5abf6y

  • MD5

    4d6949129a43ccc67d319639d7843b62

  • SHA1

    397e2a122868635566404b054a0d040dcdaa88a3

  • SHA256

    a34ff0fbcbc0bf49288aa95c9a394a65e8024d0cd20869358c9bed56d23d4ebd

  • SHA512

    60e8d86415f53a8225a3e4eac305959b6db4d238258334584255737295bd66070989774826e71490c28f7be0a6e6eb41c204a4a2316b2f3b51c16b7e5f0307a3

  • SSDEEP

    24576:ds2omxiHt/KZBPsekjjLmEEq36qonCgEOC57:ds2oK+tCZBwiEIpnCgE/57

Score
10/10
remcoswaltar-hostpersistencerat

Malware Config

Extracted

Family

remcos

Botnet

waltar-Host

C2

melvinchrist774.zapto.org:2290

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    qqs.exe

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    true

  • install_flag

    true

  • install_path

    %AppData%

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Rmc-6V2Q1F

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    ksd

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      a34ff0fbcbc0bf49288aa95c9a394a65e8024d0cd20869358c9bed56d23d4ebd.exe

    • Size

      971KB

    • MD5

      4d6949129a43ccc67d319639d7843b62

    • SHA1

      397e2a122868635566404b054a0d040dcdaa88a3

    • SHA256

      a34ff0fbcbc0bf49288aa95c9a394a65e8024d0cd20869358c9bed56d23d4ebd

    • SHA512

      60e8d86415f53a8225a3e4eac305959b6db4d238258334584255737295bd66070989774826e71490c28f7be0a6e6eb41c204a4a2316b2f3b51c16b7e5f0307a3

    • SSDEEP

      24576:ds2omxiHt/KZBPsekjjLmEEq36qonCgEOC57:ds2oK+tCZBwiEIpnCgE/57

    Score
    10/10
    remcoswaltar-hostpersistencerat

    • Remcos

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

      ratremcos

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks