General

  • Target

    vbc.exe

  • Size

    653KB

  • Sample

    220522-ghlfvaged9

  • MD5

    cf67271f2b35c9db343f08eba81c2408

  • SHA1

    2862120c6c8fac978543d4dc9ccf8cf337361fe6

  • SHA256

    447531e094a1210b3de8f430e72c6fc8abcb8adfee2b029ad7480bb4eb2f77a7

  • SHA512

    a18926c2dc262ae1125ee1bf5a33e11712e52aad38db8fe0947e0f4b0ad5abc398a3a8422ba1ee0fb739de7c28d62ab4b266832c03ee2706b7715e3b02ca7751

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    nora@best-wd.shop
  • Password:
    5+t@dw5Mc}Dr

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    nora@best-wd.shop
  • Password:
    5+t@dw5Mc}Dr

Targets

    • Target

      vbc.exe

    • Size

      653KB

    • MD5

      cf67271f2b35c9db343f08eba81c2408

    • SHA1

      2862120c6c8fac978543d4dc9ccf8cf337361fe6

    • SHA256

      447531e094a1210b3de8f430e72c6fc8abcb8adfee2b029ad7480bb4eb2f77a7

    • SHA512

      a18926c2dc262ae1125ee1bf5a33e11712e52aad38db8fe0947e0f4b0ad5abc398a3a8422ba1ee0fb739de7c28d62ab4b266832c03ee2706b7715e3b02ca7751

    • AgentTesla

      Agent Tesla is a remote access tool (RAT) written in visual basic.

    • 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.

    • Uses the VBS compiler for execution

    • Accesses Microsoft Outlook profiles

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scripting

1
T1064

Defense Evasion

Scripting

1
T1064

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