General

  • Target

    a4e779e38a8d0ce7f6ecfcedcba9ddd6353bb2f53bfddbc34af8b03b04576e6d

  • Size

    611KB

  • Sample

    220521-aaq8sscgcl

  • MD5

    5ab841ac053ac7db78d9cadbc4911d3a

  • SHA1

    b499bfe101e09722b347eb2ba5438f1c1afeff12

  • SHA256

    a4e779e38a8d0ce7f6ecfcedcba9ddd6353bb2f53bfddbc34af8b03b04576e6d

  • SHA512

    a696ede34e2e7eff05bb3c1570950afb1ec4c00e57bd784572b1d2393d2f3045fa6291be8022991fd4b06db28025fecf00cbd688aacf4fad79d53a1ecebd7dc0

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

      prove of payment 7302020.exe

    • Size

      781KB

    • MD5

      334a4702c2d6602a307a9ab03dfd5c33

    • SHA1

      4ae1b8a89738d374f6abfc35f4b733057f4fd989

    • SHA256

      61f33b4982359531b0f61caee9e5d0abf02413224fa7895d32d4a79ce638c9ad

    • SHA512

      4c54e384138d64f72059e47f40a0c6e7886f26bd37a9f9bba32416fc42e5f102d1405712268308718f8d466c0b7d3f500d0641ad88cd919653211dd4de7532bb

    • 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