Malicious PDF — malware analysis report

Static analysis result for SHA-256 82d2b322871357c8…

MALICIOUS

PDF

40.1 KB Created: 2020-07-28 14:33:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a177002562867192235fef85671156c9 SHA-1: 2ade0770609cbc5670069f8fb735a761acc4f0f7 SHA-256: 82d2b322871357c8bfdff9d911a851814374b5243bcad935cc275219f7f6668d
194 Risk Score

Malware Insights

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

The PDF contains a link disguised as an answer to a game, which redirects to a malicious URL. This URL is part of a link farm and a redirector, indicating a phishing or scam attempt. The ML classifier strongly supports the malicious nature of this PDF.

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=blockly+turtle+level+9+answer In PDF document text
    • http://files.iodeontario.ca/uploads/1/3/2/8/132814387/65f17559056e1.pdfIn PDF document text
    • http://files.mrwingard.com/uploads/1/3/0/7/130740571/5877627.pdfIn PDF document text
    • http://files.donnylambeth.com/uploads/1/3/1/4/131454304/a7db73242ac39b6.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/1/0432/4750/1474/files/45027958183.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5531/7149/files/kuvunikesisak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1358/6600/files/35988644600.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1576/6177/files/xoraporapulijogetulanefig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bovabokuvuxinapuwukiberem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8514/3969/files/gerutibuxebapozenutizaji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3860/5461/files/zibuvoderaxuvasozupiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1415/1589/files/78628016615.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5249/8070/files/wuzevew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4496/1436/files/rusidorodopo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5152/2977/files/41633298287.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0708/0605/files/ginowipoxoruder.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0921/1557/files/37059665363.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 3

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_off00005f56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F56 5152 bytes
SHA-256: f430750e9bcef649c85527f59bae218ce728dad0dc6e13d5f722f0b77d4bca7f
font_01_sfnt_off00007106.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7106 10080 bytes
SHA-256: 6b1a7bdae5e18d790d6fee5e7213b915d26c34c460d1de407207ca90903e8fd7

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