Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d41a4c51213ff2f…

MALICIOUS

PDF

43.1 KB Created: 2020-08-19 06:01:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 37870c8dfeb93c085c021ed3a221bb9c SHA-1: 0c9271f388bf831cd42b67d7f2a0790eeddb6e42 SHA-256: 7d41a4c51213ff2f86068d688093cbab841d72daf02e2a83ec8431946041a4fa
194 Risk Score

Malware Insights

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

The PDF contains multiple links, including one pointing to a known malicious redirector at 'https://ttraff.cc/pify?keyword=java+32+bit+jre+windows+7'. This redirector is likely used to funnel users to malicious content, masquerading as a software download. The presence of numerous Shopify links suggests an attempt to create a link farm for SEO poisoning, further obscuring the malicious intent.

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.cc/pify?keyword=java+32+bit+jre+windows+7 In PDF document text
    • http://doderu.servantyearphila.org/uploads/1/3/1/6/131636664/be872.pdfIn PDF document text
    • http://files.moderndayseer.com/uploads/1/3/1/1/131164419/3905453.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/1/0437/7228/0981/files/wepoken.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1509/2894/files/cerebellar_examination.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5344/9365/files/75887257173.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/4970/1796/files/spanish_words_used_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2351/5300/files/arena_simulation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9959/4656/files/7448454850.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6447/5304/files/3._5_forgotten_realms_campaign_setting.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1359/4526/files/repanowopevirepudatidudes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4828/7904/files/raramedumukanapiwovo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4976/3494/files/nupeloxetazuxe.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006278.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6278 5520 bytes
SHA-256: 3a6325d6e7bf726d92b54ee9ae8aee9ab3d97bd5bf1f3bc3e322f471757ca8bc
font_01_sfnt_off0000755e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x755E 13236 bytes
SHA-256: 1455bfc5fda696ecdaa86a92ca3900db8d0b59a0d26be3986044851260fa4e52

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