Malicious PDF — malware analysis report

Static analysis result for SHA-256 338bb1593577b6c8…

MALICIOUS

PDF

47.0 KB Created: 2020-08-12 04:22:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9a5285bb2846e99ea156bd3409211b65 SHA-1: ae384e7e8db36b62b21a91660b0a753839124836 SHA-256: 338bb1593577b6c827955403e2815f125783a86d3af58c93f8de6aae7e32e79a
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to benign Shopify URLs, but one critical link redirects to a known malicious infrastructure at 'ttraff.cc'. The document body, though heavily obfuscated, contains the same malicious URL. This suggests the primary purpose is to redirect the user to a malicious site, likely for further exploitation or phishing.

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=type+b+blood+diet+food+list+pdf In PDF document text
    • http://fogep.keliadelaide.org/uploads/1/3/0/7/130776445/801d5f9a.pdfIn PDF document text
    • http://files.northridgebands.org/uploads/1/3/0/8/130873851/pokavezagoxolugu.pdfIn PDF document text
    • http://renudimed.ingridblacypto.com/uploads/1/3/1/0/131070571/xuxep_pexukilurofupe_jurumesaxe_natus.pdfIn PDF document text
    • http://files.socialchangemarketplace.com/uploads/1/3/2/7/132710627/kunetizepubi_dokuzogigikepo.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/1/0432/1473/3480/files/difference_between_void_agreement_and_voidable_contract.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7504/2457/files/atlas_copco_air_compressor_parts_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3732/5462/files/25533186554.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2371/8805/files/business_plan_market_analysis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4818/1666/files/kozojiluwufub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32773531818.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2715/2539/files/damekobe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0674/6011/files/sustaining_spoon_pathfinder.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1819/6891/files/bacteriologia_resumo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5205/7244/files/statistical_method_of_demand_forecasting.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3580/4319/files/63091301453.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6976/7842/files/14138366697.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 6

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_off00007318.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7318 4920 bytes
SHA-256: d21810a6be4d187d0dab6ba5d15788ff92443aa5ab46273a9c688f1fbab8cd1a
font_01_sfnt_off000083f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83F1 13540 bytes
SHA-256: 27777c36bb4392001ef6a98770b023983d9f0b4afbdb2faae270e0c53147f54f

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