Malicious PDF — malware analysis report

Static analysis result for SHA-256 e86589e411793652…

MALICIOUS

PDF

40.7 KB Created: 2020-08-20 13:33:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0c0aae91ea1415e4dd4693ffda780a0f SHA-1: cd4ef865e27023ab4d011f2c79be883f78cab4fe SHA-256: e86589e41179365222226bc4754176069347f6c488db1f8bef31efdb1bd863b0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link farm designed to appear as relevant search results, with the primary malicious link redirecting through 'ttraff.cc'. This infrastructure is known for distributing malware. The ML classifier strongly indicated maliciousness, and the PDF structure itself points to a link farm tactic. No scripts were extracted, but the embedded URLs and heuristic firings are sufficient to assess the attack pattern.

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=autocad+electrical+drawings In PDF document text
    • http://pileg.oregonpremiumlabradors.com/uploads/1/3/1/3/131398125/movobunobubavorojal.pdfIn PDF document text
    • http://xusagadoz.mindfulnessyoga.net/uploads/1/3/2/8/132815933/julunizulukike.pdfIn PDF document text
    • http://files.moneytreerentacar.com/uploads/1/3/2/7/132741334/f25fdbac.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/1/0438/0036/3169/files/razelavaxenokoxazu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6943/2230/files/fofigobifamefuxus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9302/3133/files/73658537184.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2571/0750/files/49641071446.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2843/8440/files/weekly_timesheet_hour_calculator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3172/2146/files/chemical_engineering_interview_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1605/2123/files/fisanovopov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6055/2085/files/lapelixugata.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8153/9489/files/54497748647.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5248/2208/files/vakigab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7507/5225/files/vopisovokatapiwuvisituzew.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_off0000603c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x603C 5188 bytes
SHA-256: af51c609d11208cd87a801f9501bed5c497002e1e3c3ce37eabd0e583ffe7e5c
font_01_sfnt_off000071fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71FD 10556 bytes
SHA-256: 8c8dc3b418ea6c3b514bef7697527bebf2c84902ada11e371355802e0a28d1ba

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