Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6fbc8be782d428c…

MALICIOUS

PDF

42.2 KB Created: 2020-08-06 21:19:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f88b4b65f46ab94e271d8a039003374a SHA-1: e8e2714125bb2f4b0d8c97bde78ebae0231a715b SHA-256: f6fbc8be782d428c48d078d732acfa0d7518721bae91fb1dc7fecb594d065148
234 Risk Score

Malware Insights

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

The PDF contains a lure related to payment and invoices, directing the user to click a link. The primary link, 'https://ttraff.com/pify?keyword=free+automobile+bill+of+sale+template+pdf', is identified as a malicious redirector. The document also hosts a large number of external PDF links, many of which point to benign Shopify domains, but the initial redirector is the most critical IOC.

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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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=free+automobile+bill+of+sale+template+pdf In PDF document text
    • http://files.usualumnibookstore.com/uploads/1/3/0/9/130969046/sanutoduwezo.pdfIn PDF document text
    • http://files.kokuabehavioralhealth.org/uploads/1/3/0/7/130740183/878aa.pdfIn PDF document text
    • http://files.wjra.net/uploads/1/3/1/0/131070527/vogadutiwovazin-guxoxuse-tegivoxafarat-xomuxaki.pdfIn PDF document text
    • http://files.jennyrollsyoga.com/uploads/1/3/2/7/132740541/1d673fd.pdfIn PDF document text
    • http://nubawig.brookwoodlearning.com/uploads/1/3/1/1/131163898/5636770.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/1/0434/0485/3402/files/nuzodipobimez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9469/5329/files/puzimebiwotomutis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6601/5395/files/oxford_advanced_learner_s_dictionary_9th_edition_international_student_s_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tawoxusabevesumaxev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0899/1125/files/lujofavuxuwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6200/9760/files/faxofelidinaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4852/5208/files/86470136381.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5353/7690/files/jewufefomuvuvapapiwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5149/9170/files/track_tapes_value.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3905/5258/files/nilaxifizip.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 6

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_off00006599.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6599 5280 bytes
SHA-256: f55628311dfe57ce27e6db45a476ad7b2d2c6b8c407099adae1fb1dcbc98bfa6
font_01_sfnt_off0000776e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x776E 10860 bytes
SHA-256: 97d4395a3f34565646d60ae18cae5e208aa16782c4c68a745ace00c2e157f23c

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