Malicious PDF — malware analysis report

Static analysis result for SHA-256 678f72fd8f02e318…

MALICIOUS

PDF

88.6 KB Created: 2020-08-16 19:19:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 503d5b7682bdbad7418b02162c78dc9e SHA-1: 1e7c07c19f598e56953a5f3a64b4113b322300e9 SHA-256: 678f72fd8f02e31853544571b97db44c7561eff8670a34695aef0e227710ef32
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains multiple heuristics indicating malicious redirector links and SEO link farming, directing users to potentially harmful infrastructure. The primary malicious URL identified is https://ttraff.ru/pify?keyword=alexandria+va+map+pdf, which is used in conjunction with numerous other links hosted on Shopify and other domains. The ML classifier strongly supports the malicious verdict.

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=alexandria+va+map+pdf In PDF document text
    • http://pafodak.balancedbodysolutionsok.com/uploads/1/3/0/7/130775432/75385843d0b9323.pdfIn PDF document text
    • http://files.thiscloselittlefamily.com/uploads/1/3/1/4/131453333/perokafo_direpasu_bobakajixa.pdfIn PDF document text
    • http://files.sportsplexlv.com/uploads/1/3/0/7/130775823/8159300.pdfIn PDF document text
    • http://files.phoenixhypnobirthing.com/uploads/1/3/1/6/131606687/2736204.pdfIn PDF document text
    • http://files.hitashardaslife.com/uploads/1/3/2/3/132303020/6039035.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/1/0434/0183/8757/files/mefabowamepe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5280/1943/files/xutonimetezetu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3600/6817/files/22129997385.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4440/5397/files/54702033326.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9535/8624/files/alcohol_metabolism.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7754/2823/files/dijamiririlowi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3915/2535/files/wobiviluxosezikup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6789/0069/files/79453654410.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_off00011d1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D1D 5124 bytes
SHA-256: 8a254a788acdcea3f859f85aa59159dff452d02f5e1b5c0d3f02d83e643cb0d9
font_01_sfnt_off00012e7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E7D 11072 bytes
SHA-256: 9dc54f036a970ea68b67765a0077f751bb226eba1490146efd7385357f68b2cd

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