Malicious PDF — malware analysis report

Static analysis result for SHA-256 10b3a2d576f6c954…

MALICIOUS

PDF

57.7 KB Created: 2020-08-18 17:54:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6048a91823226a01fb45d2e3ced652af SHA-1: 32e58f43113fbe0a4744613d9c958b57292b8fda SHA-256: 10b3a2d576f6c95447a522c8a2cd9bb2118c8fe5c9c433a2d9fb3bea8dc2fb0c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external resources, many of which are hosted on Shopify and appear to be part of a link farm designed to mimic legitimate content. The primary redirector link, https://ttraff.ru/pify?keyword=allegory+in+literature+pdf, is flagged as malicious and indicative of a phishing or scam lure. The document body, though heavily obfuscated, also contains this URL, reinforcing 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.ru/pify?keyword=allegory+in+literature+pdf In PDF document text
    • http://vuvateken.thekansasbeecompany.com/uploads/1/3/2/8/132814930/6214823.pdfIn PDF document text
    • http://files.serenitybirth.com/uploads/1/3/1/4/131454098/2a98ccadbd.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/1/0435/1570/7551/files/91422981045.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5353/0788/files/lunogig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2100/7005/files/wajokenebid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9947/2551/files/kadijada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3882/5887/files/46229486455.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4647/8759/files/bizakikafox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5901/2006/files/cars_2_fast_as_lightning_game.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9957/8773/files/aptamil_pro_expert_minsan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8955/9705/files/99875016376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4914/7816/files/forever_aloe_vera_gel_benefits.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 1

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_off0000a09f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA09F 5124 bytes
SHA-256: 7879115640fa7aa8c82576b78fbcde9fa2eec65a396fa5d746e4f8c2f712fd5d
font_01_sfnt_off0000b223.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB223 12452 bytes
SHA-256: a0338fb935b4ceefd8c3c3014c9af633aa364e26a6ef1d4bc47a823b6c6fff85

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