Malicious PDF — malware analysis report

Static analysis result for SHA-256 07a15eb27bb54470…

MALICIOUS

PDF

40.9 KB Created: 2020-08-13 21:57:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4c3bfae60dd8a79e0707e79d9b459539 SHA-1: 18e714242704154ac41adecf984799bddfa78399 SHA-256: 07a15eb27bb5447045e1f1daf454fc515c58a3077d0a41caeeb7c6e9fbd65406
194 Risk Score

Malware Insights

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

This PDF document employs SEO tactics and redirects users to potentially malicious content via the URL https://ttraff.cc/pify?keyword=bin+sachivalay+clerk+model+paper+book+pdf. The document body and embedded links suggest a lure for downloading study materials, which is a common phishing pretext. The ML classifier strongly indicated maliciousness, and the presence of redirector links further supports a malicious intent.

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=bin+sachivalay+clerk+model+paper+book+pdf In PDF document text
    • http://files.elawr.org/uploads/1/3/2/6/132695574/dupabotab.pdfIn PDF document text
    • http://files.covingtonproductions.com/uploads/1/3/0/9/130970003/8993388.pdfIn PDF document text
    • http://zopesoba.crossfitzonedesign.net/uploads/1/3/2/7/132712326/zojebip.pdfIn PDF document text
    • http://files.onestrength.com.au/uploads/1/3/1/0/131070491/7334111.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/1/0432/3095/3630/files/strength_of_materials_important_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0802/4985/files/2189111761.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6123/9192/files/wokevol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8294/8506/files/zopevirarumo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8186/7176/files/mepawogikovenamufaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4506/8699/files/gajirapika.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0224/6814/files/fundamental_of_thermodynamics_8th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5340/7646/files/curb_65_score_pneumonia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1708/4833/files/fotawibuzapufodevixunuto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1540/5725/files/55212343955.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 3

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_off00005ef9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EF9 5812 bytes
SHA-256: d74b2c6395ecdcd2b4865b79609dcf0ddabc09902a3899599c86593ee431e1bf
font_01_sfnt_off0000728b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x728B 10484 bytes
SHA-256: 1644c12ba16cceba55ce07cb8ef3374fed6ea85b71a0148c755bf666be596d83

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