General

  • Target

    f360c982a239c5902dc727ad78af022c1a699c3433ab721248b5765bc0d6f3a8

  • Size

    670KB

  • Sample

    220521-nbccxsddc6

  • MD5

    417aaba9d67a730dac35f3d84e5ab2ee

  • SHA1

    600dd49721db5a33ab2652b79f2533455484fa18

  • SHA256

    f360c982a239c5902dc727ad78af022c1a699c3433ab721248b5765bc0d6f3a8

  • SHA512

    4115cfd05d779fbcadbb7e8a16e201a6e36c7a0689e5103ddeb2e7072d22c30b2af75925deeb0fb9abdfdb64d94f7199331d10722a3307c87d618ae9914be56a

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.cortlandfire.org
  • Port:
    587
  • Username:
    matthew.vanheusen@cortlandfire.org
  • Password:
    UsMc2336

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.cortlandfire.org
  • Port:
    587
  • Username:
    matthew.vanheusen@cortlandfire.org
  • Password:
    UsMc2336

Targets

    • Target

      f360c982a239c5902dc727ad78af022c1a699c3433ab721248b5765bc0d6f3a8

    • Size

      670KB

    • MD5

      417aaba9d67a730dac35f3d84e5ab2ee

    • SHA1

      600dd49721db5a33ab2652b79f2533455484fa18

    • SHA256

      f360c982a239c5902dc727ad78af022c1a699c3433ab721248b5765bc0d6f3a8

    • SHA512

      4115cfd05d779fbcadbb7e8a16e201a6e36c7a0689e5103ddeb2e7072d22c30b2af75925deeb0fb9abdfdb64d94f7199331d10722a3307c87d618ae9914be56a

    • 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