Malicious PDF — malware analysis report

Static analysis result for SHA-256 d80f51a6ef2391f3…

MALICIOUS

PDF

42.2 KB Created: 2020-08-25 16:08:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 34ac20f064f336668b55f6e0c4ee69c8 SHA-1: b5b2ebe66cc96d133d439106df734d82bc6957d3 SHA-256: d80f51a6ef2391f3f6b82a9d3077901d863854e60c7aaff37946e06ca27aabba
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. The document body itself is heavily obfuscated but contains the URL 'https://ttraff.cc/pify?keyword=bose+headphones+apple+or+android', indicating a likely phishing or scam lure. The presence of numerous other PDF links, many pointing to unknown domains, further supports the attack pattern of a link farm used for malicious redirection.

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.cc/pify?keyword=bose+headphones+apple+or+android In PDF document text
    • http://lixeregu.staceymason.com/uploads/1/3/1/6/131637814/8b054e96e6.pdfIn PDF document text
    • http://files.barkavedeland.com/uploads/1/3/0/7/130775592/dadijarabezapi.pdfIn PDF document text
    • http://files.harristonunited.com/uploads/1/3/1/4/131437766/zoregok.pdfIn PDF document text
    • http://tibalup.carolsuereader.org/uploads/1/3/0/9/130969060/826256.pdfIn PDF document text
    • http://files.bigredlocksmiths.com/uploads/1/3/0/7/130776077/3813594.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/1/0439/1705/0008/files/maplestory_tera_burning_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0066/8065/files/css_linear_gradient.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4424/7451/files/32208169736.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/5073/7320/files/celula_animal_y_vegetal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2503/8498/files/67092230609.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/8430/3775/files/at_risk_youth_a_comprehensive_response_6th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3273/1030/files/powesalu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4388/9052/files/definition_of_quantitative_research.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8380/9443/files/dnd_5e_help_action.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006605.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6605 5096 bytes
SHA-256: 4b13d77015497f715b27bcc75e7a204aca574457bb7bcd02cba660480a4e4f38
font_01_sfnt_off00007748.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7748 10560 bytes
SHA-256: 209e0ddf8e5541aa44118c43114a4a3db3999f1c8cd2b360fcae14ee6fa387fb

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