General

  • Target

    dcc41a696bd3a288bab35e1ee6448d6a9171514b2ad737257198a775a7b96dc6

  • Size

    481KB

  • Sample

    220521-ndxrmsgfdp

  • MD5

    181bfc51a912a8ef756ebccc7a8523db

  • SHA1

    4f78adce22400445e98db661b1efa22345206cfb

  • SHA256

    dcc41a696bd3a288bab35e1ee6448d6a9171514b2ad737257198a775a7b96dc6

  • SHA512

    248997c72bfa92548da06de5573da730b6a584f773e02da9b7cbca0b06ae0d65191616de73b0b69ca62cd0a9a5e0bd612099a9dab790db3fe0513bf4e3862c43

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.bnb-spa.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    tPo!47:glt$E

Targets

    • Target

      purchase Order NO.8909w4vvy..exe

    • Size

      583KB

    • MD5

      b928fd1ba01bd33342b2462fb6e55947

    • SHA1

      f5d165fcbf2075bedf5a3f0cad36781030d8dcc9

    • SHA256

      4c09fce4576481f55dcd4cffbe780d90867da332a6d86666831496fa33e36b84

    • SHA512

      346c7236c5ae67932261483708fed85031ee62c97cd35e7348fb875da794fe0d5d05eee8f979eece0e92578caab8b9cc8859398cfcbd7aca89bed9d361f1d44e

    • AgentTesla

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

    • AgentTesla Payload

    • 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

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

1
T1112

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