General

  • Target

    2eaf147e46a106eaf7a6c8e618060e2f.exe

  • Size

    817KB

  • Sample

    210723-94ynslz13x

  • MD5

    2eaf147e46a106eaf7a6c8e618060e2f

  • SHA1

    b3419edba9585c0b5a9a3ece82592cb9893ae17e

  • SHA256

    367fd8584be5901c9b262975ab5e5700e0e3010d697f1161b6aafabcc7f07d07

  • SHA512

    71e172b10385b62c242208079da62b4d8a39422d9762e3164fe5ae2edbc7413386d7a3dc8fc1f8c4562d1b45bf6fa099adc4d7dcdbf73a63d860f26f8c39aa56

Malware Config

Extracted

Family

azorult

C2

http://195.245.112.115/index.php

Extracted

Family

asyncrat

Version

0.5.7B

C2

omomom.ac.ug:6970

omkarusdajvc.ac.ug:6970

Mutex

6SI8OkPnkxzcasd

Attributes
  • aes_key

    sEiaxlqpFmHMU8l5j0Ycz8apFoEBTERY

  • anti_detection

    false

  • autorun

    false

  • bdos

    false

  • delay

    XX

  • host

    omomom.ac.ug,omkarusdajvc.ac.ug

  • hwid

    3

  • install_file

  • install_folder

    %AppData%

  • mutex

    6SI8OkPnkxzcasd

  • pastebin_config

    null

  • port

    6970

  • version

    0.5.7B

aes.plain

Extracted

Family

oski

C2

danielmax.ac.ug

Targets

    • Target

      2eaf147e46a106eaf7a6c8e618060e2f.exe

    • Size

      817KB

    • MD5

      2eaf147e46a106eaf7a6c8e618060e2f

    • SHA1

      b3419edba9585c0b5a9a3ece82592cb9893ae17e

    • SHA256

      367fd8584be5901c9b262975ab5e5700e0e3010d697f1161b6aafabcc7f07d07

    • SHA512

      71e172b10385b62c242208079da62b4d8a39422d9762e3164fe5ae2edbc7413386d7a3dc8fc1f8c4562d1b45bf6fa099adc4d7dcdbf73a63d860f26f8c39aa56

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers.

    • Azorult

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

    • BitRAT

      BitRAT is a remote access tool written in C++ and uses leaked source code from other families.

    • BitRAT Payload

    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • Modifies Windows Defender Real-time Protection settings

    • Oski

      Oski is an infostealer targeting browser data, crypto wallets.

    • suricata: ET MALWARE Observed Malicious SSL Cert (AsyncRAT Server)

    • suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

    • suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

    • suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

    • suricata: ET MALWARE Win32/AZORult V3.3 Client Checkin M1

    • suricata: ET MALWARE Win32/AZORult V3.3 Client Checkin M16

    • Async RAT payload

    • Downloads MZ/PE file

    • Executes dropped EXE

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Deletes itself

    • Loads dropped DLL

    • 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.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

5
T1112

Disabling Security Tools

2
T1089

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Tasks