General

  • Target

    New_PO #1783919939-12-2022 RFQ Amended.exe

  • Size

    880KB

  • Sample

    221208-kr54dscd6t

  • MD5

    4539061d908b8efb290f3d8326482324

  • SHA1

    cfb842136aaee73a35801e60eb898aeb7df7d5c7

  • SHA256

    66e8893d8742feb4cf59cba5705d0ed26ec79f7287c873e56b4216b71903af81

  • SHA512

    e2c805525fc16a243550c633dcb97e5ff28b81652cfa08b79543ae4d065c80b04a637188d559ad659c97be1d3ae8ace907d0c222f16b10ff95ff2a3b8759a4eb

  • SSDEEP

    24576:9HZFWD/I1REDicfWwQXGTPcABRGrnyzccWwg5+RbZV:q/IkZfWwQXMc3yjee1

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.tegzw-com.cf
  • Port:
    587
  • Username:
    admin@tegzw-com.cf
  • Password:
    k6C[HUoih&9&

Targets

    • Target

      New_PO #1783919939-12-2022 RFQ Amended.exe

    • Size

      880KB

    • MD5

      4539061d908b8efb290f3d8326482324

    • SHA1

      cfb842136aaee73a35801e60eb898aeb7df7d5c7

    • SHA256

      66e8893d8742feb4cf59cba5705d0ed26ec79f7287c873e56b4216b71903af81

    • SHA512

      e2c805525fc16a243550c633dcb97e5ff28b81652cfa08b79543ae4d065c80b04a637188d559ad659c97be1d3ae8ace907d0c222f16b10ff95ff2a3b8759a4eb

    • SSDEEP

      24576:9HZFWD/I1REDicfWwQXGTPcABRGrnyzccWwg5+RbZV:q/IkZfWwQXMc3yjee1

    • AgentTesla

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

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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

    • 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

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks