Malicious PDF — malware analysis report

Static analysis result for SHA-256 042dd84ddadfc9dd…

MALICIOUS

PDF

40.9 KB Created: 2020-08-06 21:36:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fcb297a2f4b6fe6c06a417e23030e7a1 SHA-1: 086f54e4abec5621ca6ace1d947fed48bfdcd7a4 SHA-256: 042dd84ddadfc9dd2d96f2e4fe234120f752eb39235212b9517b00a736434815
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which are SEO-optimized PDF files hosted on Shopify. A critical heuristic identified a link to a redirector, 'ttraff.com', which is known to host malicious content. The document body, though heavily obfuscated, contains the same redirector URL and several benign-looking Shopify URLs, suggesting a lure to disguise the malicious redirection. No scripts were extracted, but the presence of malicious redirector links and the ML classifier's high confidence indicate a malicious intent to redirect users to harmful sites.

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=area+of+composite+rectangles+worksheet+pdf In PDF document text
    • http://files.davesartdimensions.com/uploads/1/3/1/6/131606348/vojetiborakupo.pdfIn PDF document text
    • http://files.johnscreekchorus.com/uploads/1/3/1/6/131637136/d78bb5c70da.pdfIn PDF document text
    • http://files.nemnlc.org/uploads/1/3/1/3/131380728/lujixalut.pdfIn PDF document text
    • http://files.justguystravel.com/uploads/1/3/1/3/131398547/256f3.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/1/0431/3304/2839/files/fe_mechanical_review_manual_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7877/9047/files/21671569229.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4488/7963/files/786_380_6798.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5382/4677/files/wowezejogosojumit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9990/5429/files/56728720182.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5556/2398/files/ripiroporomokokolavuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4513/5260/files/kekeket.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5538/1669/files/nabokolovifuniditiworukuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4837/8266/files/vixota.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7149/4554/files/632761784.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5063/0296/files/sale_of_business_agreement.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0580/4698/files/lolekibu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1351/2100/files/teroxuve.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_off000060f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60F3 5712 bytes
SHA-256: 4a18c75c6ed8e718f816169fd49b0f45bfa49f5721f7e57edb90ce5a488c5bd9
font_01_sfnt_off00007447.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7447 9960 bytes
SHA-256: cbecc088c7fecd5a36208c7e58d72f9afd3fce8624050deb1591983d36d5794b

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