General

  • Target

    226d50ee865fa31dd5780b59955d0cc08de81d9694d855ebf1b8094523cd60ea

  • Size

    239KB

  • Sample

    230923-2k2aasce26

  • MD5

    a5c24e1fbbf0a3307cc4556b91bd3072

  • SHA1

    51502750e32a5f919db4ccb2aeda21674ae1a599

  • SHA256

    226d50ee865fa31dd5780b59955d0cc08de81d9694d855ebf1b8094523cd60ea

  • SHA512

    783d3332c3915d77fb9074be45689857778f9e6250ff3d3d9f070ebde15d2a0a13e5821e9ef150bdac948684f4124d2aeca8f3cd73bcb948485c304d617843de

  • SSDEEP

    6144:3H46fuYXChoQTjlFgLuCY1dRuAOBpHFw8y0:3YYzXChdTbv1bu3w8y

Malware Config

Extracted

Family

smokeloader

Version

2022

C2

http://77.91.68.29/fks/

rc4.i32
rc4.i32

Extracted

Family

fabookie

C2

http://app.nnnaajjjgc.com/check/safe

Targets

    • Target

      226d50ee865fa31dd5780b59955d0cc08de81d9694d855ebf1b8094523cd60ea

    • Size

      239KB

    • MD5

      a5c24e1fbbf0a3307cc4556b91bd3072

    • SHA1

      51502750e32a5f919db4ccb2aeda21674ae1a599

    • SHA256

      226d50ee865fa31dd5780b59955d0cc08de81d9694d855ebf1b8094523cd60ea

    • SHA512

      783d3332c3915d77fb9074be45689857778f9e6250ff3d3d9f070ebde15d2a0a13e5821e9ef150bdac948684f4124d2aeca8f3cd73bcb948485c304d617843de

    • SSDEEP

      6144:3H46fuYXChoQTjlFgLuCY1dRuAOBpHFw8y0:3YYzXChdTbv1bu3w8y

    • Detect Fabookie payload

    • Detect rhadamanthys stealer shellcode

    • Detected google phishing page

    • Fabookie

      Fabookie is facebook account info stealer.

    • Phobos

      Phobos ransomware appeared at the beginning of 2019.

    • RedLine

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

    • RedLine payload

    • Rhadamanthys

      Rhadamanthys is an info stealer written in C++ first seen in August 2022.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Modifies boot configuration data using bcdedit

    • Renames multiple (89) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

    • Deletes backup catalog

      Uses wbadmin.exe to inhibit system recovery.

    • Downloads MZ/PE file

    • Modifies Windows Firewall

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Uses the VBS compiler for execution

    • Accesses Microsoft Outlook profiles

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Drops desktop.ini file(s)

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Execution

Command and Scripting Interpreter

1
T1059

Scripting

1
T1064

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

Indicator Removal

3
T1070

File Deletion

3
T1070.004

Scripting

1
T1064

Modify Registry

2
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

5
T1012

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Impact

Inhibit System Recovery

4
T1490

Tasks