Overview

overview

10

Static

static

HIT221000598.xlsx

windows7-x64

10

HIT221000598.xlsx

windows10-2004-x64

1

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General

  • Target

    HIT221000598.xlsx

  • Size

    615KB

  • Sample

    221101-vr15jseegr

  • MD5

    c0540e9242a21eb4de07fb232601dd0e

  • SHA1

    de322fcde28b0a90d2e89e6545c2cf32c2cc714d

  • SHA256

    929df8a15e583ad6b64698fb702cf44183f0d726d86cada07cf072d7f9f74913

  • SHA512

    613e2802a62fc4560a33a05e794b77852f5be6573cd6728946ee9c1cab3e42a8deb2c8e814e71c84be816c8241dbdbdfe17e56051a88a7b0eb8b55385fc7e3fc

  • SSDEEP

    12288:iMmaVPxIFv02yL3i7zvI287jr43/s7L1j9rYf1g7/TuZuRlMmJMH/x9MoMWZ4MyP:iexI1sLS77Kr4v490f1gvKunMmWmW2aq

Score
10/10
remcosxppersistencerat

Malware Config

Extracted

Family

remcos

Botnet

XP

C2

xpremcuz300622.ddns.net:3542

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    oos.exe

  • delete_file

    false

  • hide_file

    true

  • hide_keylog_file

    false

  • install_flag

    true

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Remcos-MMP2I7

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    kkl

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      HIT221000598.xlsx

    • Size

      615KB

    • MD5

      c0540e9242a21eb4de07fb232601dd0e

    • SHA1

      de322fcde28b0a90d2e89e6545c2cf32c2cc714d

    • SHA256

      929df8a15e583ad6b64698fb702cf44183f0d726d86cada07cf072d7f9f74913

    • SHA512

      613e2802a62fc4560a33a05e794b77852f5be6573cd6728946ee9c1cab3e42a8deb2c8e814e71c84be816c8241dbdbdfe17e56051a88a7b0eb8b55385fc7e3fc

    • SSDEEP

      12288:iMmaVPxIFv02yL3i7zvI287jr43/s7L1j9rYf1g7/TuZuRlMmJMH/x9MoMWZ4MyP:iexI1sLS77Kr4v490f1gvKunMmWmW2aq

    Score
    10/10
    remcosxppersistencerat

    • Remcos

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

      ratremcos

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Exploitation for Client Execution

1
T1203

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

2
T1112

Credential Access

Discovery

System Information Discovery

3
T1082

Query Registry

2
T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks