Malicious PDF — malware analysis report

Static analysis result for SHA-256 914d5abd1aaae44a…

MALICIOUS

PDF

41.1 KB Created: 2020-08-15 08:39:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 46acd8b5b1c72a9bf9b1d042c83ce057 SHA-1: 737eb9f3687f1962ad9f6a5aa3044bf2e0d9f395 SHA-256: 914d5abd1aaae44ae222902337a69f2bfaad08c17abe325493d8fd92b5f0f72b
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to lure users to malicious infrastructure. The primary malicious link, https://ttraff.cc/pify?keyword=sheets+for+bedridden+patients, is a redirector. The document body, though heavily obfuscated, contains this URL and other links, suggesting a social engineering attempt to drive traffic to malicious sites.

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=sheets+for+bedridden+patients In PDF document text
    • http://jupimagu.lopezanimals.org/uploads/1/3/2/6/132695569/xawipa.pdfIn PDF document text
    • http://files.ency-education.com/uploads/1/3/1/8/131857445/a6a129f9a90813.pdfIn PDF document text
    • http://jararife.buryacapeelers.co.uk/uploads/1/3/0/8/130874049/jadaxu_semojax_nigawi_kefuti.pdfIn PDF document text
    • http://files.heroesofcolor.com/uploads/1/3/1/3/131380063/5359549.pdfIn PDF document text
    • http://lofunudo.sacredsummitchocolate.com/uploads/1/3/2/8/132814930/gorivezorokid.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/1/0428/8223/6572/files/kudave.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1730/4226/files/31582593136.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7667/3946/files/65158978508.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9842/3967/files/wulotelewijiratadatulegis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9907/8304/files/alkaline_herbal_medicine_aqiyl_aniys.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/9238/9531/files/58239090690.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8749/5322/files/43050928794.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1578/2048/files/swing_trading_with_options.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15843942414.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_off000060cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60CC 5340 bytes
SHA-256: c24d4573fde786f2622d00d8b58c8aa3025e3b6c2a94d820e79506a787ba43c6
font_01_sfnt_off000072e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72E4 10800 bytes
SHA-256: f4be4188353cbadc16702167c091120b3099380adc1c1276821417dc5e2fcb88

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