Malicious PDF — malware analysis report

Static analysis result for SHA-256 30c144f503482ec4…

MALICIOUS

PDF

44.8 KB Created: 2020-08-12 13:12:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fff634c4668f7635a610b87f352cb684 SHA-1: 62752a9964a49df6a287f308a6e585d1c05cc942 SHA-256: 30c144f503482ec46cfcc842ee2ae604595d385755eb5634670b32623aec5c90
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 external PDF files hosted on Shopify. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=parallelogram+law+of+vector+addition+practical+pdf'. This suggests the document is part of a link farm or SEO poisoning campaign designed to drive traffic to malicious sites. The document body, though heavily corrupted, contains the same academic-sounding title as the malicious URL, indicating a lure.

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=parallelogram+law+of+vector+addition+practical+pdf In PDF document text
    • http://files.coastalcruisetravel.com/uploads/1/3/0/8/130814169/zonisa.pdfIn PDF document text
    • http://files.sipndipwithjeanine.com/uploads/1/3/1/4/131453034/5833379.pdfIn PDF document text
    • http://files.tecumsehbakery.com/uploads/1/3/0/7/130738903/396e9b4b8684.pdfIn PDF document text
    • http://files.andyreimanis.com/uploads/1/3/1/0/131069887/567d2edfe6e.pdfIn PDF document text
    • http://files.eagleriverbestcleaningservice.com/uploads/1/3/1/4/131453114/eb12e36f192.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/1/0430/0364/2007/files/list_of_strong_acids.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/7416/9505/files/nobobexoloralorisa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8212/0358/files/bible_commentary_on_romans.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9183/6566/files/autonomous_vehicle_system_architecture.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7923/6773/files/puledugulonasoporeliwov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6508/9941/files/git_permission_denied_publickey.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6079/6318/files/jejakatofizaxomikilejovi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8494/8380/files/38712280823.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7121/8588/files/fesedovivodepuxaba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8260/3927/files/garebus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2166/3397/files/58518268620.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 4

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_off00006ed7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ED7 5448 bytes
SHA-256: 5ea2aca14d992a1aff21b9afd53cf303730b53ee1c85fdcfeaf3f1db4d5eabff
font_01_sfnt_off00008164.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8164 10544 bytes
SHA-256: b162ac8ee489233d0a211cc24b4dee303c87fe79c5a003fd7212fdbf05e74fee

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