Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9ee351b7d4ef7f4…

MALICIOUS

PDF

106.9 KB Created: 2020-08-02 16:01:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ac52990c48945fa4cf78588b812953a3 SHA-1: 348bd24ac1869bee1985d478f733a840aeec166c SHA-256: f9ee351b7d4ef7f4b8b1b087e8092322b4de769f5f5b58fded9a36be9cc2c481
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector at 'https://ttraff.ru/pify?keyword=breath+of+the+wild+wizzrobe'. Another critical heuristic identified a PDF link farm, suggesting a spam or SEO-based distribution method. The ML classifier strongly indicates maliciousness. The document body, though heavily obfuscated, contains the same lure text as the malicious URL.

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=breath+of+the+wild+wizzrobe In PDF document text
    • http://files.apriloliviaroskos.com/uploads/1/3/0/7/130739895/6041879.pdfIn PDF document text
    • http://denuf.mochisu.com/uploads/1/3/0/7/130739625/zezipu_safel_vagozuvavatusar_wigud.pdfIn PDF document text
    • http://files.mystartjournal.com/uploads/1/3/1/6/131637136/sepazejituled-gewopi-zazipolajum.pdfIn PDF document text
    • http://files.markjmusic.com/uploads/1/3/2/6/132681931/kibisosilirum.pdfIn PDF document text
    • http://files.rippleartstudio.com/uploads/1/3/2/6/132695915/17530dcd.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/1/0437/4082/3706/files/71025014107.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4431/5029/files/master_piece_kannada_movie_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6042/7928/files/23646558518.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9819/3566/files/20296533192.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0423/9770/files/juzopo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8786/9592/files/rumabapis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6556/5589/files/duluvineba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kemulubu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1537/2949/files/zepitikumejukaxowanur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9005/9176/files/24993988439.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1310/9917/files/joworafari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3332/9817/files/71082726597.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3081/4626/files/7774689053.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: apriloliviaroskos.com 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_off0001588b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1588B 5148 bytes
SHA-256: 5710ba136d335cc5edf581eebb2720356bf9a26be25b45f6b58e89cdfe327e19
font_01_sfnt_off00016a21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16A21 16892 bytes
SHA-256: 9b1b7859f922e87abf9773f059142b2e19ce5f012b0248906f305782fa5bf6c1

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