Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d49a2879b9cb324…

MALICIOUS

PDF

42.5 KB Created: 2020-08-08 20:16:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a3a1b332dc24be119fb67a7390e128d5 SHA-1: eca4cef8744902941ea62907c7dc5799a4775212 SHA-256: 7d49a2879b9cb324cd45c408c3480540c6d6ae416fe34aa8b92508083df7683f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link farm designed to lure users to a redirector URL, which is associated with malicious activity. The document body text and embedded URLs suggest a phishing or scam attempt, likely to download further malware. The ML classifier strongly indicated maliciousness.

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.com/pify?keyword=bundeskanzler+liste+pdf In PDF document text
    • http://files.citrustreeyoga.com/uploads/1/3/1/4/131437444/ad831ffe5d756.pdfIn PDF document text
    • http://files.fbcmexico.com/uploads/1/3/1/3/131398102/8465773.pdfIn PDF document text
    • http://wanolaten.rawearth.ca/uploads/1/3/2/6/132681947/ruxabevuloz.pdfIn PDF document text
    • http://files.chino77thcavalry.com/uploads/1/3/2/7/132740545/busiva-xifebojetata-vidugazukijelu-madifodezit.pdfIn PDF document text
    • http://files.cothrons.com/uploads/1/3/0/7/130775640/mugibufufomode_vozuzawenali_xagodufoxigesij_febotukidur.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/1/0432/5477/5970/files/wugosuwelesejoguz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5930/4858/files/monster_blood_gungeon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6758/0322/files/lagless_shaders_mod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7141/3151/files/dulunusomojukosuxebap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8553/7175/files/9582409147.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8760/9497/files/munanavodised.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6997/2392/files/todalevisilusid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2952/7709/files/warhammer_rulebook_7th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4444/6118/files/lafozubekosuvun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0242/9593/files/foride.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5207/2086/files/5045037968.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_off000066a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66A5 5196 bytes
SHA-256: 38a592843f22e93ed943fd8a5171fa61dbb5ac41ee3c39ed4b2f809d738ef39d
font_01_sfnt_off0000786e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x786E 10776 bytes
SHA-256: 5fd6e639d7027ea14e05cbd7e4ff7de62a962541c13ad3595fce0767325ae325

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