General

  • Target

    5d813767b6866940a44739d59a658f3dfcc9c316078af93567cf7ef5b85e0b3c

  • Size

    424KB

  • Sample

    220521-nbyk6adde9

  • MD5

    705b8483fd603fed14cf09def577afe9

  • SHA1

    f8ab3dd9f8daf90653b1616f093b1275e3616872

  • SHA256

    5d813767b6866940a44739d59a658f3dfcc9c316078af93567cf7ef5b85e0b3c

  • SHA512

    0c6c806a02eb1a58fc686619d18e3d781f96d815f06bfbfaab3f6bafdb5b04b211edd5261659ad261a1123a253e52b30059dc6660ae805426787790a87944ad9

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.bnb-spa.com
  • Port:
    587
  • Username:
    ambibros@bnb-spa.com
  • Password:
    tPo!47:glt$E

Targets

    • Target

      verified payment.exe

    • Size

      509KB

    • MD5

      6676febfeb6d3406db3ebc03ad4f130e

    • SHA1

      5cf62bb0fe32f028f4beaa319ce3562c850a7c00

    • SHA256

      a146c15fea12b7c11eb1152c698c223d52111a51fd2c6a834d6a36ab36e20c0c

    • SHA512

      8d773f4aecba106514aa14798ac73d314f07e54967350e25ab3674cc0152f26665a901eab8a783a3088f12392bbf14b89a7b454675796127cec35907a0f0cbb5

    • 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