Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc2aa65c3f45ce2b…

MALICIOUS

PDF

41.2 KB Created: 2020-08-08 15:25:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a5760a057271c2ec94f7d6f6a5a622b6 SHA-1: 13c0be6bd91ad05e2481b4cf8cee53f731902509 SHA-256: fc2aa65c3f45ce2b30a1fb40b82269946cce8f3b556be853f93d664569f6f9c1
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=test+english+file+beginner+pdf'. This indicates the document's primary purpose is to redirect the user to malicious infrastructure. The presence of numerous other PDF links, many hosted on cdn.shopify.com, suggests a link farm or SEO poisoning tactic to increase visibility. The ML classifier also strongly flagged this PDF as malicious.

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.com/pify?keyword=test+english+file+beginner+pdf In PDF document text
    • http://files.jossavate.com/uploads/1/3/0/7/130775223/3458693.pdfIn PDF document text
    • http://files.armstrongfamilyblog.com/uploads/1/3/0/7/130775062/3886864.pdfIn PDF document text
    • http://files.fumcabilene.com/uploads/1/3/1/0/131071289/1187635.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/1/0429/6137/1290/files/73569010903.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7605/8274/files/5353996379.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8436/5476/files/53477303325.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0306/0128/files/basic_bill_of_sale_for_car.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9236/1887/files/peradilan_agama_di_indonesia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9748/9572/files/lajiselejonagibewapubi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3264/9636/files/jekaruvalilebuguxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8221/1733/files/fovovokerofamepo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5586/6265/files/mathematical_symbols_and_their_names.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5294/9913/files/90431760860.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0706/4734/files/grammar_based_models_in_computer_graphics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6828/3287/files/x3_albion_prelude_cockpit_mod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9476/0858/files/jhene_aiko_remember_download.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 3

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_off00006455.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6455 5180 bytes
SHA-256: ce2eaedb0d141148938f98839bd002a09dd3281226726ec582042f9ee01a11f6
font_01_sfnt_off000075e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75E9 10032 bytes
SHA-256: 0292744d44e403a4436509feb32bf212984bf5542675f6631b56c6cf8a8f3101

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