General

  • Target

    528b769f1d3f0cbe43e9ad807f4f4694a78c12158bd452558ebd8ecb9bcbc121

  • Size

    563KB

  • Sample

    220524-bdj5bsedcj

  • MD5

    551975d6594dbf5a2380f437a578beef

  • SHA1

    27f48000b795bb087b72a325683671af3ffdfe94

  • SHA256

    528b769f1d3f0cbe43e9ad807f4f4694a78c12158bd452558ebd8ecb9bcbc121

  • SHA512

    6d8de71097cd90652b4258060102c3c07c8473d59749a20d3ab907ec5401d239a1ff662a44a0ef759d6616cfb374f13f89ccb443e458846c672be516767d29bb

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.pipingzone.com
  • Port:
    587
  • Username:
    sales@pipingzone.com
  • Password:
    PQ^vN@^wm6

Targets

    • Target

      528b769f1d3f0cbe43e9ad807f4f4694a78c12158bd452558ebd8ecb9bcbc121

    • Size

      563KB

    • MD5

      551975d6594dbf5a2380f437a578beef

    • SHA1

      27f48000b795bb087b72a325683671af3ffdfe94

    • SHA256

      528b769f1d3f0cbe43e9ad807f4f4694a78c12158bd452558ebd8ecb9bcbc121

    • SHA512

      6d8de71097cd90652b4258060102c3c07c8473d59749a20d3ab907ec5401d239a1ff662a44a0ef759d6616cfb374f13f89ccb443e458846c672be516767d29bb

    • AgentTesla

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

    • AgentTesla Payload

    • ReZer0 packer

      Detects ReZer0, a packer with multiple versions used in various campaigns.

    • 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

    • 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