Malicious PDF — malware analysis report

Static analysis result for SHA-256 81934d263ef19049…

MALICIOUS

PDF

46.4 KB Created: 2020-08-01 06:17:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4f8484411ed4356d78a4e6bfe992cadb SHA-1: a67112155bfb2d6d8293e04ae69246f718288aa4 SHA-256: 81934d263ef19049b1dfd91bca7a4d39e06210a36feb21b67e5c869b52dfc2ee
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external resources, many of which are hosted on Shopify and appear to be part of an SEO link farm designed to attract clicks. The primary redirector URL, https://ttraff.cc/pify?keyword=how+many+discord+servers+can+you+join, is flagged as malicious. This suggests the document is a lure, likely for phishing or to distribute further malware, by disguising malicious links as legitimate downloads.

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=how+many+discord+servers+can+you+join In PDF document text
    • http://files.bobconi.com/uploads/1/3/1/6/131637224/vinibud_robibazibu.pdfIn PDF document text
    • http://files.gypsydenboutique.com/uploads/1/3/0/7/130739116/4023380.pdfIn PDF document text
    • http://files.laurenboehmlynch.com/uploads/1/3/0/7/130739379/54d45a9bbd402.pdfIn PDF document text
    • http://files.bernadettebuote.com/uploads/1/3/0/8/130814283/be088.pdfIn PDF document text
    • http://files.annepwert.com/uploads/1/3/0/8/130813592/454a6cd0c.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/1/0433/7188/8803/files/2335862204.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3486/8897/files/87285824958.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4350/9656/files/fi_6130z_driver.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8381/7375/files/70703090401.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6885/8272/files/94819014306.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6300/0734/files/mozozer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2821/0073/files/34270458501.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5106/3195/files/16991446018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0654/8377/files/adobe_illustrator_free_trial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/puneson.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7028/3173/files/drake_sword_ds1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1055/4016/files/kedezowejevavafikap.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 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_off000076b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76B9 5344 bytes
SHA-256: 87bcf4261732af2db03b2089f1c82983ad9b6868fcd039452233433457093835
font_01_sfnt_off000088ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88EC 10316 bytes
SHA-256: 8de7608785205c5d9e6ebb29220379bab0427d3f3e2ef296e6f0c3f09b1ac8a4

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