Malicious PDF — malware analysis report

Static analysis result for SHA-256 01ecc296ccae929e…

MALICIOUS

PDF

41.0 KB Created: 2020-08-15 02:55:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dbb8e83c34c6ca380fffedbb0e336b4f SHA-1: 64dab9f08aba6f31b2b800485481a3ebc57367d9 SHA-256: 01ecc296ccae929e2ed170b82b062e59afa91b3f704342ca0e23d4183a930f62
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.ru) that is known to host malicious content. The document body, though heavily obfuscated, contains the same redirector URL and several benign-looking Shopify URLs, suggesting a link farm or SEO manipulation tactic to disguise malicious intent. The ML classifier strongly indicates maliciousness, and the presence of numerous external links points towards a phishing or malware distribution attempt.

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.ru/pify?keyword=android+tv+devices+australia In PDF document text
    • http://files.htfc-eng.org/uploads/1/3/1/4/131453539/9631953.pdfIn PDF document text
    • http://files.yolga.nl/uploads/1/3/1/3/131384777/1792929.pdfIn PDF document text
    • http://wozafe.ameritexservices.com/uploads/1/3/0/8/130814328/5286919.pdfIn PDF document text
    • http://files.onemanhealthsolutions.com/uploads/1/3/0/9/130969364/ac72b8e7e3b9d.pdfIn PDF document text
    • http://mafafof.electronic-cemetery.com/uploads/1/3/0/7/130738885/fosujifaf.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/1/0431/6371/3690/files/77159800200.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3119/8886/files/moving_flexagon_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4410/8453/files/kepusidis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1158/6722/files/liziwusazonakijud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/6117/8521/files/case_580e_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3817/8471/files/rumerezoti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3243/7158/files/60251275393.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1949/3785/files/98552433090.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5010/6018/files/88066452733.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9652/3423/files/sportsmans_guide_coupon_code.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 4

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_off00006306.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6306 4980 bytes
SHA-256: 76aef4d7ba2108b56b7fec845ab583161404a21c4d261a3c3858f2609b2b29b9
font_01_sfnt_off00007406.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7406 10380 bytes
SHA-256: 2b2d76f6a0b567ab77ead9664ea381787760fffc17d6289f932c93bb0616244d

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