Malicious PDF — malware analysis report

Static analysis result for SHA-256 7592a9274455eeae…

MALICIOUS

PDF

45.1 KB Created: 2020-08-10 13:45:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0b0ff6fe42854d8f09e4a24547f5c55e SHA-1: ab5ec6d4c710be529add6e3526d6df170bd75385 SHA-256: 7592a9274455eeae0c3c6f5023b8a204dfca339e7cfb5ee33ee11630106dd885
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting an attempt to drive traffic to malicious sites. The document body, though partially obfuscated, includes a URL that matches the malicious redirector found by heuristics. The ML classifier also 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.ru/pify?keyword=cuales+son+los+valores+de+la+ciudadania+digital+pdf In PDF document text
    • http://jubet.brunyislandseafood.net/uploads/1/3/1/4/131482995/205a53f8034ae.pdfIn PDF document text
    • http://files.quasilocum.com/uploads/1/3/1/3/131380733/dazepip-tefifipipewesex.pdfIn PDF document text
    • http://files.plantsandponytails.com/uploads/1/3/1/4/131437657/9962222.pdfIn PDF document text
    • http://files.rebeccagrayyoga.com/uploads/1/3/0/8/130874238/bdc71a461.pdfIn PDF document text
    • http://lifuzo.thesummitplayhouse.org/uploads/1/3/0/7/130776791/cb7cca.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/1/0430/9850/5377/files/pujugexomarirazaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8281/3341/files/about_behaviorism_b_f_skinner.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2160/6817/files/widodazo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1479/7981/files/fipamamej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9562/1786/files/hey_soul_sister_ukulele_chords.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6259/9583/files/4438896869.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4803/4716/files/30630070056.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6745/7188/files/add_artboard_photoshop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6866/1660/files/46627691127.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8176/7841/files/555_astable_multivibrator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7270/7990/files/vumepetotokolowoma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4506/8699/files/82032160532.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8991/0167/files/44862080313.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_off00006ed6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ED6 5288 bytes
SHA-256: 2223e4b4e3055e48a510e00d15007e38d6c637ddcf268753a5107f6263eb137c
font_01_sfnt_off000080ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80EA 11024 bytes
SHA-256: 344b96cd5a9d7b406858be4903b01407f8a8aeb26399fe556ffaca4b4ef55c52

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