Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3c70aa5775d9716…

MALICIOUS

PDF

33.9 KB Created: 2020-08-13 21:26:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ef30a33a06ed1c33b45168a4de09625f SHA-1: c33ae697c675c78f870358dcca67e05901e9db2c SHA-256: b3c70aa5775d97165d47e9425c045eef86909d7c5ba5bf9b730a42955f21d95d
214 Risk Score

Malware Insights

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

The PDF document contains a link farm and a specific malicious redirector URL disguised as flight gate information. The primary malicious URL, https://ttraff.com/pify?keyword=united+airlines+gate+information+sfo, is designed to redirect the user to further malicious infrastructure. The document also contains numerous links to Shopify-hosted PDFs, likely part of an SEO link farm strategy to improve search engine ranking for malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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=united+airlines+gate+information+sfo In PDF document text
    • http://files.fccfrankfort.org/uploads/1/3/0/7/130739444/4479759.pdfIn PDF document text
    • http://toxiseju.kickapoograzinginitiative.com/uploads/1/3/1/4/131454549/4a9c147f0a8675.pdfIn PDF document text
    • http://lamela.awakeningbodymindspirit.com/uploads/1/3/0/8/130814526/burabepizesa_zatovuvadekeni_sirodinulox.pdfIn PDF document text
    • http://files.hallandcodesign.com/uploads/1/3/1/4/131407857/vubaduriwagobe_loxirozifuw_jukur.pdfIn PDF document text
    • http://files.sunshinetiques.com/uploads/1/3/2/3/132302960/8f2df26c60f03.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/1/0429/0481/3721/files/31301113267.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5553/8595/files/67503884721.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1290/6405/files/89995551718.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8375/9765/files/amore_e_psiche_neumann.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8547/0623/files/notalinifekakija.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4836/0343/files/english_word_list_with_meaning_and_sentence.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1935/3757/files/8077125287.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7009/5521/files/64163163790.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/4674/3709/files/frontline_magazine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pegumi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2740/6746/files/tilolasamowilupowate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3151/8622/files/gubevutoke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6295/1077/files/18169239035.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000046da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46DA 5220 bytes
SHA-256: 59b8252517e1e45272c606a235c3c193091d2e71f386d0b19a62908e217bb244
font_01_sfnt_off00005879.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5879 9480 bytes
SHA-256: a3151e7e206457a057335b7cf7c4f5006f617b0e069da3d626d2e15042709754