Malicious PDF — malware analysis report

Static analysis result for SHA-256 a85a4845b6169817…

MALICIOUS

PDF

37.3 KB Authoring application: PDFedit First seen: 2020-09-24
MD5: 89080ea17059c63e19fae6dc8fbd169e SHA-1: 03e907e3f8881771b372ef6857ee3f65c3996f60 SHA-256: a85a4845b61698177b4e39d2fcafe8faf4026394226cc36a5e6a290d1be4d263
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links to external websites, a common technique for SEO poisoning and phishing. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing classification. The document body, though heavily obfuscated, contains references to 'psychic' and 'mediums', suggesting a lure to fraudulent services. The embedded URLs are the primary indicators of compromise, leading to potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://vateguxa.proxymaniacs.com/uploads/2020/01/28/darovowubulu_vatuwaguzupobo.pdf In PDF document text
    • http://suzaf.express-prachka.ru/uploads/2020/01/28/1105659.pdfIn PDF document text
    • https://tazelojovizazad.weebly.com/uploads/1/3/0/4/130483741/xategimekigijuwinoj.pdfIn PDF document text
    • http://pamejabo.technolojix.com/uploads/2020/01/27/beraxuvad.pdfIn PDF document text
    • http://zepub.online-shoping.club/uploads/2020/01/28/ladoso.pdfIn PDF document text
    • http://cfthomas.com/uploads/1/3/0/5/130590278/130590278.html#cassadaga+best+psychicIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000107e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107E 7884 bytes
SHA-256: b5406cbfffcad917e4a47cb69ed1fc25015a848366dbfc45edb81acbacf9b8fe
font_01_sfnt_off00004aec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AEC 16176 bytes
SHA-256: bf3bff3bedfaeabefa51d33005a2669c85ccaa6957f952e846d5c5d67e96d558

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