Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5ff9bafb59a3341…

MALICIOUS

PDF

48.9 KB Created: 2020-09-16 16:25:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8fa8dd0593f8a046acbd95dc1ea0b118 SHA-1: 2152f77a9c859c81bfa0ad2062540369bd667278 SHA-256: b5ff9bafb59a3341782b5d9a0c96830897928dd5fb2d8879af69e6fe763ce558
194 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.link/wix?keyword=nfl+mobile+app+hack', which is a known malicious redirector. This suggests the primary purpose is to redirect users to malicious sites, likely for phishing or malware delivery.

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.link/wix?keyword=nfl+mobile+app+hack In PDF document text
    • http://files.martinsburgflipside.com/uploads/1/3/0/8/130874431/koxafelikiz.pdfIn PDF document text
    • http://files.fishwoodworking.com/uploads/1/3/0/9/130969312/b7de32271d16.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://6169c09d-20cd-4e83-98c5-5be0440a95b9.filesusr.com/ugd/145364_ebb302fb0ecb4945b3d988de599d5a1b.pdf?index=trueIn PDF document text
    • https://ef2deb36-2d69-42d6-9781-85edfa0b4998.filesusr.com/ugd/c83fdb_7a78d4802f454c63b7d6fbfb2fab29ca.pdf?index=trueIn PDF document text
    • https://219abeb6-d6fe-4f58-826d-42785e5e0345.filesusr.com/ugd/067ecb_bd8e73dc80d44bbcbccfae910081058a.pdf?index=trueIn PDF document text
    • https://f1672a88-5837-41df-a546-edea9fb14c44.filesusr.com/ugd/64bd79_6a30d6470480407ab677c93729773e25.pdf?index=trueIn PDF document text
    • https://523d206d-ed48-49cc-bd21-e8596368df2f.filesusr.com/ugd/a4ea6c_d928ceb673e4414297870b924b1544ce.pdf?index=trueIn PDF document text
    • https://940b018c-2f99-4781-9808-5b77cd3e7a18.filesusr.com/ugd/33a2e4_1fb5092c062c43ee811991bfc16683fb.pdf?index=trueIn PDF document text
    • https://e0b31e09-c346-4b1a-a32f-5cb342cb0753.filesusr.com/ugd/6f9b04_3181cccbf2d941c3b1f2f1a19f3730df.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3461/5708/files/dushman_movie_video_song_hd.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9940/5977/files/fezenile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1207/8243/files/85096835116.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9191/1066/files/bixobas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7027/5236/files/pubog.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 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007330.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7330 4756 bytes
SHA-256: 07aa01bb742146b71c3fa67514fb393ad6cb5a4560f01d0d718b7388663a942c
font_01_sfnt_off00008358.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8358 10504 bytes
SHA-256: 7ae99c31ea74cef59dc4fd8f9ab32a85c975f39296b251ceb0d0bf9785b33e6b
font_02_sfnt_off0000a74d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA74D 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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