Malicious PDF — malware analysis report

Static analysis result for SHA-256 35aeb5e2400cb8ef…

MALICIOUS

PDF

44.0 KB Created: 2020-08-03 09:14:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a119b7686b40c4132ebf4e30e5104157 SHA-1: a2f6c755ba2a3af38511295aafd7d69e84692114 SHA-256: 35aeb5e2400cb8ef4677251f3c6bde668977392f357a4615814e0a5fb4c9a602
194 Risk Score

Malware Insights

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

The PDF document was flagged by a machine learning classifier and contains numerous embedded links. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which likely serves as a lure. Another critical heuristic indicates a PDF link farm, with many links pointing to Shopify domains, suggesting an attempt to manipulate search results or distribute content. The presence of these link farms and the redirector points to a malicious distribution or SEO poisoning campaign.

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=big+sean+idfwu In PDF document text
    • http://files.ka-bloomgroup.com/uploads/1/3/1/3/131398323/7560275.pdfIn PDF document text
    • http://files.karinridgers.me/uploads/1/3/2/6/132681812/kipuxisaxajalabise.pdfIn PDF document text
    • http://files.mapced.org/uploads/1/3/0/7/130776131/giwokujedomuva.pdfIn PDF document text
    • http://teribe.avian.dk/uploads/1/3/1/4/131407178/disapuji.pdfIn PDF document text
    • http://files.bristoldoughnut.co/uploads/1/3/1/1/131164002/2596418.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/1/0428/6650/7942/files/quando_quando_quando_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3276/3816/files/videdetokawemopuxel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5421/0980/files/18755748293.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6271/4773/files/4251399701.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3006/7865/files/sda_bible_study_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6224/7080/files/zokeboxinorubi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1769/1559/files/25015998073.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9259/0236/files/zokolibudikol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gofifarigomikidapowokov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4324/8533/files/upper_level_ssat_practice_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7193/8461/files/18433745780.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1931/3053/files/zujotetuxejenifeso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8581/4173/files/tarokupijufixisamasota.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_off00006eae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EAE 5088 bytes
SHA-256: 57feb33fdf1157f464b5947039c99608f51a0ccac5fe94ab5ca6f5c9d5bf4850
font_01_sfnt_off0000802f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x802F 10204 bytes
SHA-256: 7df3c1967e90922f90805b69a1fc0766a48aea77f7cc548c7b85743e32485208

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