General

  • Target

    dd24038447b24a38c5a46d1affc44551738b042400935429fb2313d60b9c4d43

  • Size

    560KB

  • Sample

    220521-n5fmfahgfj

  • MD5

    0dbaebdfb89b5c3f5e9332b454bd8f8d

  • SHA1

    393bbaecd3ae70249f4069cf3ddcf8452c8f1cbb

  • SHA256

    dd24038447b24a38c5a46d1affc44551738b042400935429fb2313d60b9c4d43

  • SHA512

    bd9b8fef3b2b2be0537b5e36709e07babf6570fccaad4768f7d0c877d0732d248c7be485d24067ccb311d2fc8fc4f73448cad4ceda47096d09a872973d932e40

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Everest10

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Everest10

Targets

    • Target

      COSU 6270575380 PCL2004868048.exe

    • Size

      606KB

    • MD5

      d1d433ad7fe5db077cb81ef0e4ec4e60

    • SHA1

      d94a577faa1557bef7fd9d2eecf7386ec3ea7e88

    • SHA256

      b4b4e82b4584a55722d213ea607a3b1131caaa039589a27e12ba4feeeaee7fb5

    • SHA512

      b1dbb723d3a342ef6666a9d11cca5182bc2228c146f2d6912eac3ea337bc1bb9b9ab55a11c1a95bf9a5bc834c41870d8b3fb2d5baafc99106289eb3c2a2b0c4c

    • 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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

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