General

  • Target

    SHIPPING DOCUMENTS_PDF.zip

  • Size

    551KB

  • Sample

    210927-w6pwhahggr

  • MD5

    3d202a162f53e84590a03098cf858c46

  • SHA1

    b6e112997bcfcbe4f012fc946303b857373c9998

  • SHA256

    34c0039596d87348848d0a28efe6d3fa77155df9cd8571eed952abe9e254f266

  • SHA512

    d13d1b09b1beb86b45ed3af47c36e4f6dd8d85ac0aa5ea5fd4c87bd3fea888b346c9de4143d6bead0256c359a2d89fe2163bd606dbf78c1e7f1bdd2fcdff3035

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.it-tel.eu
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    OZuw)N$0

Targets

    • Target

      SHIPPING DOCUMENTS_PDF.exe

    • Size

      850KB

    • MD5

      ff8964351ff2ef7ae003d14cd494efb3

    • SHA1

      cff664fffb5c470d4d2ff5dbbdc198276cc77634

    • SHA256

      95e22edcb0a13b44fe04a41017a585c67faf91b47177887b40b1b6190599b4ae

    • SHA512

      2455338bd54e74bdcbcd781158f3888988a77040cf768e4295e25c56800411a76fda65fbf074d8d2edba4cea3e80b9942dee54e9634b98e9d13dad8d26287226

    • AgentTesla

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

    • AgentTesla Payload

    • Looks for VirtualBox Guest Additions in registry

    • Drops file in Drivers directory

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • 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.

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Detected potential entity reuse from brand microsoft.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

3
T1005

Tasks