General

  • Target

    Burgan Bank Hesap Ozeti.exe

  • Size

    618KB

  • Sample

    211103-lfb7lsafdj

  • MD5

    b741d275962b6a594401b03e6f8c258f

  • SHA1

    f69fc6c731cec9c189972d646f98ffd142e69610

  • SHA256

    039676543cb62a651daa0570029334af7e19b6c2f2b5b3a083f1a7d6ebd3143e

  • SHA512

    fb29439220b9d7159bff17017e5e1d894ba287249160ba8fcf94c2e52d277a89805f82b9230f2a62e16a2f7578726d87e34892f026a084aeea5d1a04e2fbb5a3

Malware Config

Extracted

Family

blustealer

Credentials

  • Protocol:
    smtp
  • Host:
    mail.yekamuhendislik.com
  • Port:
    587
  • Username:
    muhasebe@yekamuhendislik.com
  • Password:
    MuhasebE123*

Targets

    • Target

      Burgan Bank Hesap Ozeti.exe

    • Size

      618KB

    • MD5

      b741d275962b6a594401b03e6f8c258f

    • SHA1

      f69fc6c731cec9c189972d646f98ffd142e69610

    • SHA256

      039676543cb62a651daa0570029334af7e19b6c2f2b5b3a083f1a7d6ebd3143e

    • SHA512

      fb29439220b9d7159bff17017e5e1d894ba287249160ba8fcf94c2e52d277a89805f82b9230f2a62e16a2f7578726d87e34892f026a084aeea5d1a04e2fbb5a3

    • A310logger

      A310 Logger is a .NET stealer/logger targeting passwords from browsers and email clients.

    • BluStealer

      A Modular information stealer written in Visual Basic.

    • suricata: ET MALWARE a310Logger Stealer Exfil (SMTP)

      suricata: ET MALWARE a310Logger Stealer Exfil (SMTP)

    • A310logger Executable

    • Executes dropped EXE

    • Loads dropped DLL

    • 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 web browsers

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

    • Accesses Microsoft Outlook profiles

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Credential Access

Credentials in Files

2
T1081

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

2
T1005

Email Collection

1
T1114

Tasks