General

  • Target

    0770133d27e47a0cbbac1ce9e1147182a607711907158b2f97b6dda8cea997d7

  • Size

    543KB

  • Sample

    220520-2pf5xsfga2

  • MD5

    07eb6b28637c601a058c32f7dc9a8f7a

  • SHA1

    c2f2dff111acc1ce356a8cf71132beb50bdab16a

  • SHA256

    0770133d27e47a0cbbac1ce9e1147182a607711907158b2f97b6dda8cea997d7

  • SHA512

    c71afd8746a432b9f5796c009229f4ced1c1eea8770a801730032abf8a56481be78bb7cf2f4938795c4b32a23b070bcd740c7fd132dcc958f1a56c546337bcff

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    SAIRAM@98765

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    SAIRAM@98765

Targets

    • Target

      Invoice.pdf.exe

    • Size

      576KB

    • MD5

      930091c98bb3b061c28b243dff029dee

    • SHA1

      931dd659e1b25157cb04eddd79fe7581511842b5

    • SHA256

      b250144e3bf196501c5064576d34ff66398323d7862e957f359a263d7a0c3636

    • SHA512

      32cdd782f4ec5c0a9e1034fe6a46e1b5e0edcbf5118d36fddd0db71958cda5e52676a00e9c4b538a86eaf6aada8dd9732cad13d74150c98e12ffa3e5aa5d7232

    • 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