Malicious PDF — malware analysis report

Static analysis result for SHA-256 74f562281715bd8f…

MALICIOUS

PDF

48.9 KB Created: 2020-08-22 13:12:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9156d9aa4a5105ff8cc3d9a5ec22d917 SHA-1: 7c6e710dbe3303fda85e48cf19645fafadf9294f SHA-256: 74f562281715bd8f7309f3d1dc060fe99f4592ca711d882d7b5c402d316cb899
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external PDF files, many hosted on Shopify, and a primary redirector URL. The document body and heuristics indicate a lure for free HTML5 templates, which is a common tactic for phishing or malware distribution. The ML classifier strongly indicates maliciousness, and the presence of a redirector suggests an attempt to obscure the final malicious destination.

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=best+html5+templates+2018+free In PDF document text
    • http://files.herecomesthyguide.com/uploads/1/3/1/4/131453022/eaebc6b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9717/7768/files/acca_past_papers_f9.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8792/9252/files/segezabuvem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1208/8231/files/53828037777.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2935/6959/files/bisukizasibusokeganifu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6268/0984/files/wanub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/danedogorolulefumatexa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3737/6157/files/19465888551.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9791/3512/files/57570407211.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8073/6150/files/16155858300.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4752/6293/files/tnt_song_minecraft.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/5175/3128/files/cannot_format_change_card_canon_5d.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1267/0111/files/bivelakopimulupagimosulat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6103/5686/files/sikofubiziwipidum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6014/3014/files/mufaxoloworewavikur.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 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007421.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7421 5360 bytes
SHA-256: 7760107c358dd58a7cf2a47b3317f22b2f26900871169aa8cc68f6d7a7f09149
font_01_sfnt_off00008653.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8653 10016 bytes
SHA-256: 6975fb20fafc665efb2f049a390955a088eb72c84db7f00126b0d51d5a239e43
font_02_sfnt_off0000a89f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA89F 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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