General

  • Target

    aaa4b955227b94eca939dbc0afaa558fce10a81d4021a016076414c9dbe83ed2.zip

  • Size

    1.5MB

  • Sample

    231119-zjzc7sbd84

  • MD5

    3d9f3181c1e7d19ea87b2ba6febd09f2

  • SHA1

    a2e71009fd218fefc8b045370cd9c66da68c18c8

  • SHA256

    bb8134a719bab3a13f1fb67711afeb67c235ce3639b21f57a9805f1eb9b1a433

  • SHA512

    6c6f68c2444001f71343c9b2f3123441d2e03f988755577e2d7b41f8f3588a0b83240cd2e75e44bc4b70ee6f1aad2e97fbbf46f7f7d5628d12f9ec284eeddb73

  • SSDEEP

    24576:8SdG8T2uGkBen6CO64Xx2+x5eAqioeHgt3q7PJT8b+J6TQmgYIzfVzAYfJojtRt7:Q8qu/RX0+xvfgNGTLo6YKzbotWp68i

Malware Config

Extracted

Family

smokeloader

Version

2022

C2

http://77.91.68.29/fks/

rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

grome

C2

77.91.124.86:19084

Extracted

Family

amadey

Version

3.89

C2

http://77.91.124.1/theme/index.php

Attributes
  • install_dir

    fefffe8cea

  • install_file

    explothe.exe

  • strings_key

    36a96139c1118a354edf72b1080d4b2f

rc4.plain

Targets

    • Target

      aaa4b955227b94eca939dbc0afaa558fce10a81d4021a016076414c9dbe83ed2.exe

    • Size

      1.6MB

    • MD5

      c28f9c8113172c2adb98c510a070a0f4

    • SHA1

      5566c8c299cabf6c8558d71e72df39fd00b85383

    • SHA256

      aaa4b955227b94eca939dbc0afaa558fce10a81d4021a016076414c9dbe83ed2

    • SHA512

      fe2017b25bf7c1faa9dfcb9cab1c3e6d79efe74cd132a0395e0907b8b9595283fc8cabbe7d1c5b426622cef40dc19433fa73b1b65cf9cafb6ea7dd415a6ac0ea

    • SSDEEP

      49152:OGV+PKmx+2JnKBb9EIoyLUKYgMfjWUaPR:7V+PoiK1W7yL8rra

    • Amadey

      Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    • Detect Mystic stealer payload

    • Modifies Windows Defender Real-time Protection settings

    • Mystic

      Mystic is an infostealer written in C++.

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine payload

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

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

Scheduled Task/Job

1
T1053

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

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

2
T1112

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Discovery

Query Registry

3
T1012

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Tasks