General

  • Target

    25583a13f8e47e6775ffefc2897d9176.exe

  • Size

    239KB

  • Sample

    230923-z1kw5sad9t

  • MD5

    25583a13f8e47e6775ffefc2897d9176

  • SHA1

    dacb21dd53eabc6af67460d6b405f68fcfb1f4d2

  • SHA256

    d1be7f5d28a5c648ead43ea2cccc6221251f638457879502560a3c9b62f7fee8

  • SHA512

    377596f0ff6192d58b3e000b45dc0b709a11ce3717552fc78db143e18fc19683de0f3503e1ad0e3d040777bce683adf0b9d8e8cf11be606571c907d1c8688d40

  • SSDEEP

    6144:xJ46fuYXChoQTjlFgLuCY1dRuAOLJ8Sw8y0:x+YzXChdTbv1bu/pw8y

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

Extracted

Family

smokeloader

Botnet

up3

Extracted

Family

smokeloader

Version

2020

C2

http://host-file-host6.com/

http://host-host-file8.com/

rc4.i32
rc4.i32

Targets

    • Target

      25583a13f8e47e6775ffefc2897d9176.exe

    • Size

      239KB

    • MD5

      25583a13f8e47e6775ffefc2897d9176

    • SHA1

      dacb21dd53eabc6af67460d6b405f68fcfb1f4d2

    • SHA256

      d1be7f5d28a5c648ead43ea2cccc6221251f638457879502560a3c9b62f7fee8

    • SHA512

      377596f0ff6192d58b3e000b45dc0b709a11ce3717552fc78db143e18fc19683de0f3503e1ad0e3d040777bce683adf0b9d8e8cf11be606571c907d1c8688d40

    • SSDEEP

      6144:xJ46fuYXChoQTjlFgLuCY1dRuAOLJ8Sw8y0:x+YzXChdTbv1bu/pw8y

    • Detect Fabookie payload

    • Detect rhadamanthys stealer shellcode

    • Detected google phishing page

    • Fabookie

      Fabookie is facebook account info stealer.

    • Glupteba

      Glupteba is a modular loader written in Golang with various components.

    • Glupteba payload

    • 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

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • XMRig Miner payload

    • Downloads MZ/PE file

    • Modifies Windows Firewall

    • Checks computer location settings

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

    • 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

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks installed software on the system

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

    • Detected potential entity reuse from brand microsoft.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scripting

1
T1064

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Privilege Escalation

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Defense Evasion

Indicator Removal

2
T1070

File Deletion

2
T1070.004

Scripting

1
T1064

Modify Registry

2
T1112

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Credential Access

Unsecured Credentials

2
T1552

Credentials In Files

2
T1552.001

Discovery

Query Registry

6
T1012

System Information Discovery

5
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

2
T1005

Email Collection

1
T1114

Impact

Inhibit System Recovery

2
T1490

Tasks