General

  • Target

    eb5af57f681421a21e682dd8adf47644803649b467f4f8da53f14de2182a76c7.exe

  • Size

    62KB

  • Sample

    210407-emgqtq7q52

  • MD5

    50bef5bd8f8b1322114a433ede7834ac

  • SHA1

    e2beb1f02ee5b80abbab8f01c2b107fafec35362

  • SHA256

    eb5af57f681421a21e682dd8adf47644803649b467f4f8da53f14de2182a76c7

  • SHA512

    18525e8d2c0f15924702144eb2a7af840cd0883f3ab83114a27253937dddfc22abf5a1b7da5f714f83dd677aeb97a8f9159b6ca09f5bb1c239b5df8ad9a8c980

Malware Config

Extracted

Family

azorult

C2

http://bengalcement.com.bd/AxPu/index.php

Targets

    • Target

      eb5af57f681421a21e682dd8adf47644803649b467f4f8da53f14de2182a76c7.exe

    • Size

      62KB

    • MD5

      50bef5bd8f8b1322114a433ede7834ac

    • SHA1

      e2beb1f02ee5b80abbab8f01c2b107fafec35362

    • SHA256

      eb5af57f681421a21e682dd8adf47644803649b467f4f8da53f14de2182a76c7

    • SHA512

      18525e8d2c0f15924702144eb2a7af840cd0883f3ab83114a27253937dddfc22abf5a1b7da5f714f83dd677aeb97a8f9159b6ca09f5bb1c239b5df8ad9a8c980

    • Azorult

      An information stealer that was first discovered in 2016, targeting browsing history and passwords.

    • Modifies Windows Defender Real-time Protection settings

    • Turns off Windows Defender SpyNet reporting

    • UAC bypass

    • Windows security bypass

    • Looks for VirtualBox Guest Additions in registry

    • Nirsoft

    • Executes dropped EXE

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Drops startup file

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads local data of messenger clients

      Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

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

    • Windows security modification

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • 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.

    • Checks whether UAC is enabled

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Bypass User Account Control

1
T1088

Defense Evasion

Modify Registry

8
T1112

Disabling Security Tools

5
T1089

Bypass User Account Control

1
T1088

Virtualization/Sandbox Evasion

2
T1497

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

5
T1081

Discovery

Query Registry

6
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

5
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

5
T1005

Tasks