Malicious PDF — malware analysis report

Static analysis result for SHA-256 9254d4a42bbca802…

MALICIOUS

PDF

39.4 KB Created: 2020-08-27 20:43:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 54443ee0d386927129c355c6295f93b1 SHA-1: 2d3f75b2c138093b3dc3eafbe163a5b5b6d9b828 SHA-256: 9254d4a42bbca80284ccf3130fbcd530f595df4ffafba970410849803cf330df
194 Risk Score

Malware Insights

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

The PDF document contains multiple embedded links, with one identified as a malicious redirector. The primary malicious URL is https://ttraff.cc/pify?keyword=environment+and+ecology+notes+pdf+for+aktu, which likely serves as a lure to a phishing page or a malware download site. The document's structure suggests it is part of a link farm designed to improve search engine rankings for malicious content.

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=environment+and+ecology+notes+pdf+for+aktu In PDF document text
    • http://files.pbarcade.com/uploads/1/3/1/4/131437987/6405236.pdfIn PDF document text
    • http://files.pegsandsplines.com/uploads/1/3/2/6/132695663/6416620.pdfIn PDF document text
    • http://files.ducksoupntreats808.com/uploads/1/3/0/7/130739831/bebe0ccc7b.pdfIn PDF document text
    • http://files.sustainablesecrets.com/uploads/1/3/1/4/131483138/muxulemezeg_fejirav_gijala.pdfIn PDF document text
    • http://files.benandsidneybakerfamilyreunion.com/uploads/1/3/0/8/130874683/repakina-zuboro.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/1/0430/8015/5289/files/bionic_turtle_frm_level_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5680/7586/files/stream_music_from_pc_to_android_phone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1925/5454/files/69129065487.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9818/6663/files/kozipi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/6614/3399/files/aarti_durga_mata_ji_ki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4801/8855/files/metemupox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7344/5792/files/79699618480.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3006/0955/files/zesefujiker.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8098/1407/files/27535158613.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: newadventuresamejourney.com 6 samples

Related samples 3

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_off00005947.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5947 5656 bytes
SHA-256: d48e91100475c54a3f987ec635a7eed62cdea164d3f01ada0eb2989e3caadfd7
font_01_sfnt_off00006c84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C84 10436 bytes
SHA-256: a67cf5d427e84001eb01acf9213c964015339dc8288f6995953c278119a369ac

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