General

  • Target

    4e5ef8e38b17fdf30961f28d4b5e2e23.chm

  • Size

    14KB

  • Sample

    220520-cbrbasebb7

  • MD5

    4e5ef8e38b17fdf30961f28d4b5e2e23

  • SHA1

    a7da3f869505242eb93c6bb07bc7cc76b6a5d71b

  • SHA256

    f0c20d4ea2e2cc1d3c9df58b1a4854f9e3b761b7cd0c26860559289c74a8d50f

  • SHA512

    c33cfc30c355dcb2638a7835986572c3da27b12cbb6c4a3773fbd1ce03e2c5b1710e15f1a15253f2951455eae53e71b5837dcc4176ace40bf43326b72e846f7c

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://pacurariu.com/F37.jpg

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    ftp.jordi-spedition.com
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    asdqwe123!@#

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.jordi-spedition.com/
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    asdqwe123!@#

Targets

    • Target

      4e5ef8e38b17fdf30961f28d4b5e2e23.chm

    • Size

      14KB

    • MD5

      4e5ef8e38b17fdf30961f28d4b5e2e23

    • SHA1

      a7da3f869505242eb93c6bb07bc7cc76b6a5d71b

    • SHA256

      f0c20d4ea2e2cc1d3c9df58b1a4854f9e3b761b7cd0c26860559289c74a8d50f

    • SHA512

      c33cfc30c355dcb2638a7835986572c3da27b12cbb6c4a3773fbd1ce03e2c5b1710e15f1a15253f2951455eae53e71b5837dcc4176ace40bf43326b72e846f7c

    • AgentTesla

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

    • suricata: ET MALWARE AgentTesla Exfil via FTP

      suricata: ET MALWARE AgentTesla Exfil via FTP

    • Blocklisted process makes network request

    • Loads dropped DLL

    • 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 Enterprise v6

Tasks