Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f9884b0f81991f1…

MALICIOUS

PDF

53.4 KB Created: 2020-08-17 06:08:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 94469e7335545a2f7ee092920f65f279 SHA-1: e04003053e33123627bad289221c913373659ee5 SHA-256: 7f9884b0f81991f1328724300ed711a230d1cbd213ddb76c7b349cead46ef007
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple heuristics indicating it's a malicious redirector, linking to a URL that appears to be part of an SEO link farm designed to trick users into downloading files. The embedded URL 'https://ttraff.cc/pify?keyword=solving+rational+expressions+worksheet+with+answers+pdf' is a primary indicator of this malicious redirection scheme. No scripts were extracted, but the PDF structure itself facilitates the 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=solving+rational+expressions+worksheet+with+answers+pdf In PDF document text
    • http://jaxujuv.bluwooddesignandbuild.co.uk/uploads/1/3/1/6/131637254/goduvaj.pdfIn PDF document text
    • http://files.d-team.info/uploads/1/3/1/4/131453555/fulivegime_dijonaxaxelela_xidawajola.pdfIn PDF document text
    • http://gafozoxi.luebtowj.com/uploads/1/3/1/4/131438641/d8e50d69b98096a.pdfIn PDF document text
    • http://riwagin.abbywendy.co.nz/uploads/1/3/0/8/130814297/2711735.pdfIn PDF document text
    • http://zuwiwital.piperfayephotography.com/uploads/1/3/2/7/132712093/wekanodu.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/1/0430/6750/6849/files/kipepulimanimabowu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3477/1607/files/56987804185.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4571/4077/files/92613949633.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2178/6521/files/budoxeliburetizumofewanem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9449/9743/files/geometric_sequence.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/85155057715.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7121/8588/files/feledufufigona.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6255/0940/files/add_to_kindle_cloud_reader.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0611/6511/files/wobul.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 3

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_off0000707b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x707B 5688 bytes
SHA-256: 94b1568b0c9153a31468ac226facaa1b5d5684289dfd8e8b3fb25f2aee790fa0
font_01_sfnt_off000083e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83E4 14660 bytes
SHA-256: 805a4e91f9cef380515c3a2a66a19f90f9e50a31e9d233f3b552a6296630b711
font_02_sfnt_off0000b1eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB1EB 16272 bytes
SHA-256: 73e18e1b520c5ef4424bada6fa52b30450462488f402fbcfc6484d4b0fcca15a

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