Malicious PDF — malware analysis report

Static analysis result for SHA-256 f235c29b5861f467…

MALICIOUS

PDF

70.1 KB Created: 2018-05-16 04:08:10 Authoring application: Qt 5.5.1 First seen: 2020-09-04
MD5: 26d99aa1974fc127010fb279f4e003c8 SHA-1: 36f07809b5560db65a0973db30af44226cb91781 SHA-256: f235c29b5861f467ac0c94010649266f9dad4146252e1bca1a0d66184c24bb4f
84 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0050

Heuristics 5

  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 2 image(s), only 0 text block(s), carries a click-outward action, and is only 70 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • Image-only PDF lure with a single link to a non-reputable host medium PDF_IMAGE_LURE_NONREPUTABLE_LINK
    PDF is image-heavy with little real text and its only clickable action is a single external link to a host that is not known-good. This is the canonical malspam carrier shape — a screenshot-like 'click to view' page whose sole purpose is to funnel the victim to one redirect/landing URL on a compromised or throwaway domain. Flagged suspicious rather than malicious because the link alone (no shortener / typosquat / brand path) is the only corroborator beyond the image lure.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://bit.do/sexdatingsite PDF link annotation
    • http://guiditiper.wiki-data.ru/d?keyword=omegle+video+talk+strangers+key&charset=utf-8&source=drupal_uploader2In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d30b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD30B 18488 bytes
SHA-256: 9167888ac18377c94e8f45515c89e0f2e7ee7f4d522ebb23a02b949e52b42eb4
font_01_sfnt_off0000fb9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB9B 15184 bytes
SHA-256: 0140bcf0eb4d23ca584b5efeac51fda4bd5e8c843709d1b6a74d42ccfe151540

Open this report in the interactive analyzer, or submit your own file for analysis.