Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d5ffd806e1034f1…

MALICIOUS

PDF

51.4 KB Created: 2020-09-17 01:05:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 41de88109bae717904bc9f128e7a4c28 SHA-1: a958b4d3b315b2053b25a96831549eac528a73b5 SHA-256: 4d5ffd806e1034f191e3e3d434b9b8760313b0a132f5bcc7a78eb495db03cfea
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a mass of external links, many pointing to Shopify-hosted PDFs, which is indicative of a link farm or SEO poisoning tactic. One prominent link, 'https://ttraff.me/wix?keyword=bdo+t4+fairy+skills', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains this same URL, suggesting the primary intent is to redirect the user to malicious infrastructure.

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.me/wix?keyword=bdo+t4+fairy+skills In PDF document text
    • http://files.mountainairdance.com/uploads/1/3/1/3/131382078/fe694ad8.pdfIn PDF document text
    • http://tarusoju.inspectnj.net/uploads/1/3/1/4/131410939/webatesafi_zapug_ziromusabate_vedexuva.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/1/0430/7727/1716/files/zakoralaxozexigaropilapil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/2143/7608/files/mesefalagenasewuwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/5789/7623/files/39690934189.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8446/3784/files/kujabogimo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6431/0425/files/vinolufagijemawunan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1871/5289/files/jitowujetimudujokelite.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5523/4710/files/ben_10_ultimate_alien_game_psp.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9384/3358/files/wepix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8613/5961/files/nafevugiju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4619/7653/files/venofipituwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6694/9786/files/88185332870.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: mountainairdance.com 7 samples

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007566.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7566 4620 bytes
SHA-256: b9bc7bfc59515ce64032228e2778658f282954a2144f7cd1ad8c265cc5f4ed9b
font_01_sfnt_off0000856f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x856F 5204 bytes
SHA-256: 347eb9a93cb43d573585d27c570ad4846a88ac67e12c85beb4a97e1018e9eda5
font_02_sfnt_off0000974c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x974C 13052 bytes
SHA-256: ba743de955b9b55a2b3b36de3b51077c55b90d62f6dc369ac67eb1a89dc53dbd

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