Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae26c2b413505984…

MALICIOUS

PDF

45.7 KB Created: 2020-08-25 19:52:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7167ebb28f82624520ccacccc4ef32f2 SHA-1: 0b19535ef23fb8ce561797491cd962494b9b1238 SHA-256: ae26c2b413505984f289e16990cab6fe1ffb98837289edffb1881c38387c02ff
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the text 'Gymnastics training pdf' and a URL that matches the redirector. This suggests the document's primary purpose is to trick the user into visiting a malicious site via a deceptive link.

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.com/pify?keyword=gymnastics+training+pdf In PDF document text
    • http://files.peterlaughton.com/uploads/1/3/1/4/131453024/2963592.pdfIn PDF document text
    • http://files.thespeculativekitchen.com/uploads/1/3/2/6/132681513/radagise.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/1/0428/9835/8432/files/99289858455.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6073/9752/files/gujutilujejokavujufedopo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8231/7978/files/lugokebutabijelizosepezev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dogudanivivakow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6314/8706/files/18726731547.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1016/9759/files/posivokesi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0457/7129/2838/files/ncaa_basketball_10_ps3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2728/1558/files/83584457374.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8714/8709/files/mumowurufugaxusokujadi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8594/5246/files/cfot_exam_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8543/7853/files/ritezakinalamumukos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5453/0709/files/98197066904.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5496/4637/files/51624252047.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 6

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_off000072b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72B4 5576 bytes
SHA-256: 38acb162c41f6e2312adf5b37e90d982635540c3215e47a2cbbadaaebfa2a3cd
font_01_sfnt_off0000859c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x859C 10616 bytes
SHA-256: 62203ca022fd3c24e3b2fae4b1ae5532aeb091735e96c517dc2b31afc2561a22

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