Malicious PDF — malware analysis report

Static analysis result for SHA-256 05cafc3555293b87…

MALICIOUS

PDF

52.3 KB Created: 2020-07-31 15:13:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bfb3ea1e229e6f4736099f8b5f63e310 SHA-1: 3936e8d7d990809ea06b972ce753ac69d9fe3bbb SHA-256: 05cafc3555293b87956069e479a0da7901394f08d416ec6d79453bb94442684a
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.com) and a large number of other PDFs hosted on Shopify. This suggests a link farm or SEO manipulation tactic. The presence of a malicious redirector link and the ML classifier's high confidence score indicate malicious intent, likely to drive traffic to malicious or unwanted content. No scripts were extracted, but the PDF structure itself facilitates the attack.

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=ase+a5+study+guide+pdf In PDF document text
    • http://files.thefashionanalyst.com/uploads/1/3/1/3/131383624/wezunawe.pdfIn PDF document text
    • http://files.glapousis.com/uploads/1/3/2/6/132695200/gamokapaverumapis.pdfIn PDF document text
    • http://files.costavistachiro.com/uploads/1/3/2/6/132681985/lowamupaf.pdfIn PDF document text
    • http://files.individualee.com/uploads/1/3/0/7/130776246/linejofamifatowizu.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/1/0436/9947/0486/files/nojorev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8283/2280/files/lufaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8278/4676/files/sofiranitatavujakoza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2482/6014/files/35263629630.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/9590150980.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0460/8155/files/tuduvet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/4155504299.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1021/9422/files/nosedujetaxadekivipotozi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9541/7237/files/fuxesezujuloniki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8779/7160/files/torokerojinebitoruselinu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6387/8566/files/jisiredut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9565/4554/files/64132548054.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6910/4540/files/wobawowokisewi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2421/9293/files/zabafodijekidebinavujubis.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_off00009097.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9097 4960 bytes
SHA-256: e3ea1992cc3a4e15c786e2cf627ca82481b055dace2a129ea86367b3873fc911
font_01_sfnt_off0000a193.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA193 10156 bytes
SHA-256: ab59c62641e6e975da892612c4528cd7cd82a6d108f3daea055a34b84d371ebb

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