General

  • Target

    FWREQUEST FOR URGENT QUOTATION (RFQ).doc

  • Size

    628KB

  • Sample

    210420-5angfp9gws

  • MD5

    7040850c5f29b143eebfe32b97a97ddc

  • SHA1

    20c428053d7d83ce23e7d6f3c48c4cd50e606ae3

  • SHA256

    53947cdc6ca591ccc866933e6d69a6861160325956ae0a284bb5d222f933e08e

  • SHA512

    827900885590850a2be455f6cbf6342535359ef2b132a6e12f7892dd038aeff0c80b1a3f08ca59b96ff2b6420372d34683c65d7b264374d0dfb597e5df300cef

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    utari.iixcp.rumahweb.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    #t.jTrXnOmWX

Targets

    • Target

      FWREQUEST FOR URGENT QUOTATION (RFQ).doc

    • Size

      628KB

    • MD5

      7040850c5f29b143eebfe32b97a97ddc

    • SHA1

      20c428053d7d83ce23e7d6f3c48c4cd50e606ae3

    • SHA256

      53947cdc6ca591ccc866933e6d69a6861160325956ae0a284bb5d222f933e08e

    • SHA512

      827900885590850a2be455f6cbf6342535359ef2b132a6e12f7892dd038aeff0c80b1a3f08ca59b96ff2b6420372d34683c65d7b264374d0dfb597e5df300cef

    • AgentTesla

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

    • AgentTesla Payload

    • 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.

    • Adds Run key to start application

    • 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

3
T1112

Install Root Certificate

1
T1130

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