Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec2ef19a5f2958a7…

MALICIOUS

PDF

45.8 KB Created: 2020-08-06 22:54:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c7f0385f4ab720b4c6556dc6dbdc8103 SHA-1: f137fb542b941838190201c80068149c8a59cdec SHA-256: ec2ef19a5f2958a7c740194513a6e00a223d422d361daff5ce366557cb979632
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector at `https://ttraff.cc/pify?keyword=bland+diet+spanish+pdf`. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains references to URLs, reinforcing the redirection attempt. The presence of a link farm suggests an attempt to game search engines or distribute content broadly.

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=bland+diet+spanish+pdf In PDF document text
    • http://files.colemansei.com/uploads/1/3/1/6/131607066/majiwijovewuf.pdfIn PDF document text
    • http://files.thenovacastrianphilosopher.com/uploads/1/3/0/8/130813781/kawaloduvoxex.pdfIn PDF document text
    • http://files.artistlyne.com/uploads/1/3/0/8/130874569/vezedusuzulo_tawigugexowabir_girezutigiwufe.pdfIn PDF document text
    • http://files.burgerclubdubai.org/uploads/1/3/0/7/130740493/zebep_kowebiwefax.pdfIn PDF document text
    • http://files.teachaloha.com/uploads/1/3/1/3/131378868/xejujelasig_legovedaxi_rerux.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/1/0432/7990/9017/files/73622827890.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7193/8461/files/91511909174.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1219/3438/files/bogubirapirefulomokepavoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8702/6581/files/diper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2942/2499/files/6928772993.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3550/7358/files/antinomie_dfinition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1561/8203/files/depabe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5461/2123/files/64801984087.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8144/0168/files/14820321507.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5819/1768/files/pokuzaropukidivoxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3331/3958/files/63926438320.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 7

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_off00007572.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7572 5080 bytes
SHA-256: 337fc7c7cb3d945ae511557e9d4837580549dd6811b5461746a3ecda7049176f
font_01_sfnt_off000086c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86C2 10620 bytes
SHA-256: 19fcd32fd889b770d4d7b78cadcf33ea5f7bcc412640eed06d9d644a63e0eaa5

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