Malicious PDF — malware analysis report

Static analysis result for SHA-256 c226feb77afdc89e…

MALICIOUS

PDF

42.5 KB Created: 2020-07-26 23:56:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3f9ad23b5f8fc30bb51df0d920398c35 SHA-1: 3676d9749be744e4120c3c98f80159d9e364ea82 SHA-256: c226feb77afdc89e9980a4919143dd981e2779eed5849e370feab830773eb3ac
194 Risk Score

Malware Insights

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

The PDF file was flagged for containing a malicious redirector link and a large number of external links, indicating a link farm. The primary malicious URL identified is ttraff.com, which is likely used to redirect users to a phishing or malware site. The document body itself is heavily obfuscated and does not provide clear textual clues, but the heuristic firings strongly suggest a malicious redirection attempt.

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=brooklyn+tabernacle+choir+music In PDF document text
    • http://files.polahphotography.com/uploads/1/3/2/3/132303382/1232658.pdfIn PDF document text
    • http://files.inspirationastudio.com/uploads/1/3/0/9/130969511/vemiwim.pdfIn PDF document text
    • http://files.raisintheblues.com/uploads/1/3/0/7/130776489/4f331c93a.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/1/0431/2812/7645/files/naxomibazerubatajakom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5639/0551/files/mukival.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2286/0966/files/mokedologexigudogudaguw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5961/7690/files/28235944165.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2020/5726/files/54585440852.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9861/0589/files/72046068022.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5840/4245/files/12399689892.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2045/1997/files/zasad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5045/8520/files/pizunozonev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/44240048578.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 2

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_off0000670b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x670B 5276 bytes
SHA-256: 012a0dd7b32e0111dfbef27f6f4dbae16522c9803672df39f266e15f3cdb1953
font_01_sfnt_off000078d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78D4 10956 bytes
SHA-256: 8eef46048f0786324863fbe90ea1f6e57dea334293a414cfc1a6d60696a9ea70

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