Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad11565df6c0bfe8…

MALICIOUS

PDF

33.6 KB Created: 2020-08-23 01:07:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a48efc713a6c3a6393d04cc86c4952a8 SHA-1: a8d870a6d7abeb71d9abab8533724b1653577614 SHA-256: ad11565df6c0bfe8821209955ee72b4225739ff1fec0bef55a313d7e99e1887a
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One of the primary links directs to a malicious redirector at ttraff.com, which is likely used to obscure the final malicious destination. The ML classifier also 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=cheetah+wallpaper+full+hd In PDF document text
    • http://files.paperpensandplanners.com/uploads/1/3/1/8/131871859/lofikazenepoku.pdfIn PDF document text
    • http://files.jeffreyscottsalsbury.com/uploads/1/3/1/3/131380094/8cbdb3684.pdfIn PDF document text
    • http://files.lifestylefitness.club/uploads/1/3/1/4/131407135/kufelododigadif.pdfIn PDF document text
    • http://files.aldersongallery.com/uploads/1/3/2/6/132681970/wewaruxop_dadimoti_rufugirodoju_jexodejilojam.pdfIn PDF document text
    • http://files.kocanada-usa.com/uploads/1/3/1/4/131437538/zorodoke.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/1/0431/2009/9488/files/pofaje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6544/9365/files/two_way_repeated_measures_anova_reporting_results.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/7057/0915/files/vector_triple_product_solved_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8225/2442/files/kenenumeronogatexife.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0255/2742/files/chemistry_textbook_for_secondary_school.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4008/0025/files/21534814886.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3239/6447/files/zigepowefeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1701/7243/files/2946266932.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6656/4520/files/wpf_treeview_hierarchicaldatatemplate_selected_item_mvvm.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8861/8396/files/74799617858.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0313/9480/files/diabetes_guidelines_2018_ppt.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7474/7545/files/isometric_grid_download.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_off000048a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48A9 4948 bytes
SHA-256: 34e68098af955c8c95564a1656fa00495c093d1a860787b92815fc9b598c1f6b
font_01_sfnt_off00005987.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5987 9440 bytes
SHA-256: f81583d8774f36f33d4f34b4c8d24e88e15dacb8d30741eb58a406c11b96bdd2

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