General

  • Target

    SecuriteInfo.com.Exploit.CVE-2018-0798.4.22910.26534.rtf

  • Size

    24KB

  • Sample

    221123-p4nr4aga41

  • MD5

    9840b28dccdefdd60cded7e28c82dea9

  • SHA1

    b0f8d8b2938d929beab034795597fff5f4dac137

  • SHA256

    e09e2133513b68311b4e451245b5a705bd520e30225af926d6a9d45229c7d2f7

  • SHA512

    4713444b3f139c3e444177fd57ee698a505edb9f76dfa88b6beeda0b5b0164475a21c9c94ff140e68abc8bb0b27a5c56bea71bd99c4901d61b1f2f4073371c93

  • SSDEEP

    384:OQMmdOFNYY0aaaIswqPeOrka1+fHQJ+t3rQkRhZ4XgvHJKF7pz6bOUMUrMAMl3i+:qFx0XaIsnPRIa4fwJM/KFtzsJMCM/i+

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5826208898:AAHq1wGhT3E-mEl-_VCUxWwOZtnwnWe6Rp0/

Targets

    • Target

      SecuriteInfo.com.Exploit.CVE-2018-0798.4.22910.26534.rtf

    • Size

      24KB

    • MD5

      9840b28dccdefdd60cded7e28c82dea9

    • SHA1

      b0f8d8b2938d929beab034795597fff5f4dac137

    • SHA256

      e09e2133513b68311b4e451245b5a705bd520e30225af926d6a9d45229c7d2f7

    • SHA512

      4713444b3f139c3e444177fd57ee698a505edb9f76dfa88b6beeda0b5b0164475a21c9c94ff140e68abc8bb0b27a5c56bea71bd99c4901d61b1f2f4073371c93

    • SSDEEP

      384:OQMmdOFNYY0aaaIswqPeOrka1+fHQJ+t3rQkRhZ4XgvHJKF7pz6bOUMUrMAMl3i+:qFx0XaIsnPRIa4fwJM/KFtzsJMCM/i+

    • AgentTesla

      Agent Tesla is a remote access tool (RAT) written in visual basic.

    • 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 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 Microsoft Outlook profiles

    • Adds Run key to start application

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Exploitation for Client Execution

1
T1203

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

2
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks