Malicious PDF — malware analysis report

Static analysis result for SHA-256 96a5aab0a10368a9…

MALICIOUS

PDF

39.3 KB Created: 2020-08-23 17:09:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1e5f56063338d6220f59609986a71e45 SHA-1: bedcea6ff1084cfcb589449377828c48cf94bf68 SHA-256: 96a5aab0a10368a942d07eb2d8a605df2403738160b11b87b5453f29fcd9eadd
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a prominent link disguised as a lure for a "video call app for android". This link redirects to `https://ttraff.cc/pify?keyword=video+call+app++for+android`, which is identified as a malicious redirector. The document also contains a large number of embedded links, many pointing to shopify.com, suggesting a link farm or SEO poisoning tactic to distribute the malicious PDF. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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 https://ttraff.cc/pify?keyword=video+call+app++for+android In PDF document text
    • http://fuzudiz.pillagerboosterclub.com/uploads/1/3/0/8/130873830/dusobemat.pdfIn PDF document text
    • http://files.ulclcy.org/uploads/1/3/1/3/131398504/f46b106abfe8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0058/6649/files/sunesimuvij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7078/3645/files/77524835596.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4975/3493/files/tibozaxipot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9375/4009/files/piromupupovowuwixixani.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2465/3224/files/21643568502.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5661/0979/files/sewadagawaxizexuxufa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9651/3448/files/bsc_third_year_maths_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6139/3046/files/vba_excel_save_as_and_email.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/8328/4890/files/spongebob_episode_guide_imdb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1358/7623/files/tratamiento_de_rinitis_alergica_cronica.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

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_off00005d69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D69 4936 bytes
SHA-256: acc4726ecd692f447d1bf979c57f65742a2e2958bd27c086591254f3aa25798c
font_01_sfnt_off00006e3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E3D 10100 bytes
SHA-256: 01fd97c579f4b8e8101f02d0c7ff57d47207b0367b74f29c8b6091ffef801d31

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