General

  • Target

    contract invoce.doc

  • Size

    132KB

  • Sample

    210226-j49vxetyen

  • MD5

    85585f5162a053f177019cec24e86375

  • SHA1

    720f60ada0426fe82aabaa4c3f8db95c2e09b07a

  • SHA256

    9c9d3701bb36c5fc3498ca7d57d553ee644ddd6daa8e551b80b2d109bdd08d35

  • SHA512

    6f1f1fae3a7d5a16611df9f46e78b57d72721499b7ad7b79bc2054d71b02c9245338a8f6ffd19e4b23944ae511c08c9eb02e788bbe26e5b940703b41bd9c38ea

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.orienttech.com.qa
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Op{^fLb9gN[!

Targets

    • Target

      contract invoce.doc

    • Size

      132KB

    • MD5

      85585f5162a053f177019cec24e86375

    • SHA1

      720f60ada0426fe82aabaa4c3f8db95c2e09b07a

    • SHA256

      9c9d3701bb36c5fc3498ca7d57d553ee644ddd6daa8e551b80b2d109bdd08d35

    • SHA512

      6f1f1fae3a7d5a16611df9f46e78b57d72721499b7ad7b79bc2054d71b02c9245338a8f6ffd19e4b23944ae511c08c9eb02e788bbe26e5b940703b41bd9c38ea

    • AgentTesla

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

    • AgentTesla Payload

    • Blocklisted process makes network request

    • 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.

    • Adds Run key to start application

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • 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

System Information Discovery

3
T1082

Query Registry

2
T1012

Collection

Data from Local System

3
T1005

Tasks