General

  • Target

    12be89063a49ef75e85e925efc7f0d2ad7adb273a0622b2eefbacbb3cb23d670

  • Size

    359KB

  • Sample

    220521-nfxjnaggeq

  • MD5

    8af006578a19b1ec50c2f5e189afcb52

  • SHA1

    5dd93688ac4f2af6d115e755026463b8b23f18a9

  • SHA256

    12be89063a49ef75e85e925efc7f0d2ad7adb273a0622b2eefbacbb3cb23d670

  • SHA512

    17f590a7e538c59f504b6f35b68fcdf0453d3a59560239fa388e1ab3f532f25b624b939a349e2fd4ebdd3ee18b17294b75215ccbf69487380dd92bf6253ce096

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.vietnainox.com.vn
  • Port:
    587
  • Username:
    anhk@vietnainox.com.vn
  • Password:
    123456789

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.vietnainox.com.vn
  • Port:
    587
  • Username:
    anhk@vietnainox.com.vn
  • Password:
    123456789

Targets

    • Target

      NewOrderRevpdf.exe

    • Size

      408KB

    • MD5

      35e2e4c58e9eb36ef09c4c0c655d84e9

    • SHA1

      c1a408af4a334ff486f31936cb966f1b712912a9

    • SHA256

      698bf99b93421f8c16cd7d6b397d9632211d25abac6194c674e2c8bc3fb07cab

    • SHA512

      8a7bfcbbb7969e8e7965131b6888d695de4a7fbed31e4dadd69324e79cff584662bbc3e08a905f48930267328e67e8aa2d325f9c64d2d7011edb7d5bec077bce

    • 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