General

  • Target

    2c73c165a91d1ea91a6ebe8448bc47a3846a48660da7b85348872f7fdd94941d

  • Size

    520KB

  • Sample

    220614-2n9qvacgc8

  • MD5

    bbc8275ae17e3d4ca5e4dae47fe0c45d

  • SHA1

    81064e3ede8f0b59b3e8097cfef4b191eaf9f874

  • SHA256

    2c73c165a91d1ea91a6ebe8448bc47a3846a48660da7b85348872f7fdd94941d

  • SHA512

    b0b56ca2f1d3493534c21085d2022ac25a42a2e2dc43e5424b7c735e26e6e2e3e69729657f38d5014b9566cf9a7a81f7ae7155caab8dbcfee640a4db140ece5e

Malware Config

Targets

    • Target

      2c73c165a91d1ea91a6ebe8448bc47a3846a48660da7b85348872f7fdd94941d

    • Size

      520KB

    • MD5

      bbc8275ae17e3d4ca5e4dae47fe0c45d

    • SHA1

      81064e3ede8f0b59b3e8097cfef4b191eaf9f874

    • SHA256

      2c73c165a91d1ea91a6ebe8448bc47a3846a48660da7b85348872f7fdd94941d

    • SHA512

      b0b56ca2f1d3493534c21085d2022ac25a42a2e2dc43e5424b7c735e26e6e2e3e69729657f38d5014b9566cf9a7a81f7ae7155caab8dbcfee640a4db140ece5e

    • 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

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

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