Overview

overview

10

Static

static

3

91cc08eaa2...3b.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    91cc08eaa2d516fe6b48ecf473dac67146c347e939a09646e1e141008e82003b.exe

  • Size

    652KB

  • Sample

    231124-wtvafseb5s

  • MD5

    f4e05067b330b3af02bcbe478c14dc70

  • SHA1

    dac73148c5ee4176574c51e7429f482a21c0dde6

  • SHA256

    91cc08eaa2d516fe6b48ecf473dac67146c347e939a09646e1e141008e82003b

  • SHA512

    4ee5ff2a6f0150d39968122d2e25cd68839f3f8c085df3a0b11ea2d16a5be583160c38b3d5236b904b50a9657c4f23922eb171ef7819a846c8326bb899228a2d

  • SSDEEP

    12288:EMray90Q5kgF6ABsLF4lZV1xX4dZdXprV8qT7zSrawUGcE3b6QfYBctEQ48:+yb5ku6m6YDvX4dZxJV3v2awUO3b6gt

Score
10/10
mysticsmokeloaderbackdoorevasionpersistencestealertrojan

Malware Config

Extracted

Family

smokeloader

Version

2022

C2

http://77.91.68.29/fks/

rc4.i32
rc4.i32

Targets

    • Target

      91cc08eaa2d516fe6b48ecf473dac67146c347e939a09646e1e141008e82003b.exe

    • Size

      652KB

    • MD5

      f4e05067b330b3af02bcbe478c14dc70

    • SHA1

      dac73148c5ee4176574c51e7429f482a21c0dde6

    • SHA256

      91cc08eaa2d516fe6b48ecf473dac67146c347e939a09646e1e141008e82003b

    • SHA512

      4ee5ff2a6f0150d39968122d2e25cd68839f3f8c085df3a0b11ea2d16a5be583160c38b3d5236b904b50a9657c4f23922eb171ef7819a846c8326bb899228a2d

    • SSDEEP

      12288:EMray90Q5kgF6ABsLF4lZV1xX4dZdXprV8qT7zSrawUGcE3b6QfYBctEQ48:+yb5ku6m6YDvX4dZxJV3v2awUO3b6gt

    Score
    10/10
    mysticsmokeloaderbackdoorevasionpersistencestealertrojan

    • Detect Mystic stealer payload

    • Modifies Windows Defender Real-time Protection settings

      evasiontrojan

    • Mystic

      Mystic is an infostealer written in C++.

      stealermystic

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

      trojanbackdoorsmokeloader

    • Executes dropped EXE

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

2
T1112

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Credential Access

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks