General

  • Target

    P20200107.DOC

  • Size

    147KB

  • Sample

    210428-ef9dg42m2e

  • MD5

    cce9b14129aee66a8441a51e0b867f77

  • SHA1

    6e67f5a70dba1c0209a5a5d453e5b78a23e1afbc

  • SHA256

    bc189bf0c472233f27e489678f02d6d9c67c1a91de7b8b4402efe0669f2c1d80

  • SHA512

    5e9540eed934052d4ceebbbef616e651d788fbfb27ab216ef1524acc53f03148d17b11b7d531801f045ed8f9b9f8f4aca34aa816076c482b16ec21acade210f9

Malware Config

Extracted

Family

oski

C2

5llion.com

Extracted

Family

azorult

C2

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

Targets

    • Target

      P20200107.DOC

    • Size

      147KB

    • MD5

      cce9b14129aee66a8441a51e0b867f77

    • SHA1

      6e67f5a70dba1c0209a5a5d453e5b78a23e1afbc

    • SHA256

      bc189bf0c472233f27e489678f02d6d9c67c1a91de7b8b4402efe0669f2c1d80

    • SHA512

      5e9540eed934052d4ceebbbef616e651d788fbfb27ab216ef1524acc53f03148d17b11b7d531801f045ed8f9b9f8f4aca34aa816076c482b16ec21acade210f9

    • Azorult

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

    • Oski

      Oski is an infostealer targeting browser data, crypto wallets.

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • 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.

    • 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.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

5
T1081

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

5
T1005

Tasks