Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a7a13a713449564…

MALICIOUS

PDF

40.8 KB Created: 2020-08-16 19:26:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6460c9a6da40be1bad1eb41e10b16ead SHA-1: ce29a601aaff49d45a195bf4130ff53e18f84f61 SHA-256: 7a7a13a7134495648aee8f88fa44b5e05bc1fc97723a97638b914d6b91c88b5f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous links, many of which point to a redirector service known for malicious activity. The primary redirector URL, 'https://ttraff.cc/pify?keyword=stickers+whatsapp+apk', is flagged as malicious and likely serves as a lure for phishing or malware distribution. The presence of a large number of PDF links, including those hosted on Shopify, suggests an attempt to create a link farm for SEO manipulation or to obscure the malicious destination.

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=stickers+whatsapp+apk In PDF document text
    • http://files.norfolkvintagehire.co.uk/uploads/1/3/1/4/131454102/4292211.pdfIn PDF document text
    • http://files.michaelmillermemorialfoundation.com/uploads/1/3/1/4/131438111/nesaxugidivujej.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/1/0430/8749/5321/files/dodafeledovevi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7777/9100/files/las_frases_mas_comunes_en_ingles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8747/6389/files/gadixego.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7450/9213/files/13036969229.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9482/6405/files/against_method_paul_feyerabend.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4146/3189/files/fadekikisuzorulo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2808/5912/files/52482470260.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8362/0757/files/the_gods_are_bastards.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1537/2953/files/rewezudukapi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2224/5273/files/romozizufod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8106/3838/files/ielts_writing_task_2_sentence_structure.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_off00006189.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6189 5248 bytes
SHA-256: d8859f829b3847cb14851c0464ef565d4e36b8eecb62959ee1fe858507fb37cd
font_01_sfnt_off00007363.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7363 10336 bytes
SHA-256: 09bd108d4057facd02c93b242f8e5470ce8cac6e7f7094dc0fac33c0d984f5ed

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