General

  • Target

    Product List .doc

  • Size

    310KB

  • Sample

    210126-v1rdveahmn

  • MD5

    7a3e5b886547c1dc69707e8ebc49164c

  • SHA1

    5d986639838db803ecc37c9d0b98916063dde4be

  • SHA256

    7e5d0929a23d923994c3b544b5e9b75c08b6871f070f67c0da719f8b4d4f1e9b

  • SHA512

    5f5bf087361579085d7a2f3dbf3ce0c2f6ad3a8879820d933e1bf89494957596f33177443bea29585c57c64906fb430038d2ffbd9ac1c233b0d8f1ce0283e8bd

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.sardaplywood.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    sup123st45

Targets

    • Target

      Product List .doc

    • Size

      310KB

    • MD5

      7a3e5b886547c1dc69707e8ebc49164c

    • SHA1

      5d986639838db803ecc37c9d0b98916063dde4be

    • SHA256

      7e5d0929a23d923994c3b544b5e9b75c08b6871f070f67c0da719f8b4d4f1e9b

    • SHA512

      5f5bf087361579085d7a2f3dbf3ce0c2f6ad3a8879820d933e1bf89494957596f33177443bea29585c57c64906fb430038d2ffbd9ac1c233b0d8f1ce0283e8bd

    • 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.

    • 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

Defense Evasion

Modify Registry

1
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

Tasks