Malicious PDF — malware analysis report

Static analysis result for SHA-256 07027972ff5fc63d…

MALICIOUS

PDF

46.0 KB Created: 2020-07-31 06:39:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0008f638ba3582124901268b6ff793fb SHA-1: 18c8122668acd136b5e5559100bc669f4dad8475 SHA-256: 07027972ff5fc63dd8fc66809ae3beadae62d98590e7da3573c37be359e918fa
194 Risk Score

Malware Insights

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

The PDF contains a large number of links to external PDFs, many of which are hosted on domains that appear to be part of a link farm or SEO manipulation scheme. The primary redirector URL, 'https://ttraff.ru/pify?keyword=autonomous+learning+systems+pdf', is flagged as malicious. This suggests the document is designed to drive traffic to malicious infrastructure, likely for phishing or malware distribution, masquerading as a free download.

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.ru/pify?keyword=autonomous+learning+systems+pdf In PDF document text
    • http://files.flyzephyr.com/uploads/1/3/1/3/131398423/zekiru_pidezariviz_segozilafifege_kifutop.pdfIn PDF document text
    • http://files.thepeacefulpup.com/uploads/1/3/0/7/130775286/4e6fb9ea0a140a.pdfIn PDF document text
    • http://files.dhltaiwanconnects.com/uploads/1/3/1/3/131378953/1699271.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/1/0436/6431/0425/files/verasadejuzitusov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1048/2588/files/sabapepodibaruwopanofo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6889/8966/files/mazogobigebaruxewog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5165/5076/files/gokimibovupirigevipe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1785/4366/files/butanorimigi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1851/6637/files/78854612473.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5654/5433/files/kibip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5637/3659/files/bowesavo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8326/0314/files/betakenalox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4248/7963/files/14896516220.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3841/6801/files/zowupafimodedunaxof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4277/4938/files/24868391188.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5207/2089/files/5439895486.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0621/4819/files/fusolis.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
🗂 Part of campaign: aledobandboosters.org 6 samples

Related samples 8

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_off00007408.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7408 5332 bytes
SHA-256: 890cfe351f6eaf00c9d131d5bd93974be68caae5759e6593957fdaf30bb44836
font_01_sfnt_off00008617.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8617 10900 bytes
SHA-256: d590f5648af894845826ca79fa71160185aaf4115bd7cb1052a21ee61a3be2a2

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