Malicious PDF — malware analysis report

Static analysis result for SHA-256 3009964a55d52ac3…

MALICIOUS

PDF

46.8 KB Created: 2020-08-01 12:48:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d94cc1af77685190fc6ace1c25f113ac SHA-1: 07694a0d97c1eaf4947a33018446850b2a465d2f SHA-256: 3009964a55d52ac3cc6105946bf4d81a7672b828c0c99fe5ee54c91ef6582971
194 Risk Score

Malware Insights

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

The PDF was flagged by a machine learning classifier and heuristics indicate it contains a malicious redirector link and a large number of external links, suggesting an SEO manipulation or phishing campaign. The primary malicious URL identified is https://ttraff.cc/pify?keyword=keras+functional+api. No scripts were extracted from this sample.

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=keras+functional+api In PDF document text
    • http://files.louiselightworker.com/uploads/1/3/2/7/132710491/fubipebif_lusagur_zozexelerufoto_sutikusogililu.pdfIn PDF document text
    • http://files.bioprimehp.ca/uploads/1/3/0/8/130874254/6914273.pdfIn PDF document text
    • http://files.harvestcommunityschool.org/uploads/1/3/0/7/130738889/7788569.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/1/0431/0253/5840/files/puvakefotuwopizifezen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2585/8723/files/64694436009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5815/0046/files/lixudisopogogosesebivi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3801/4616/files/pilegizonesemesefopopilu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8015/4269/files/19648858858.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1058/7800/files/67734644362.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8364/5599/files/52969352560.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pigirerunozekolufis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6710/3645/files/rimotetibejefejogapimibu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8562/6520/files/82257996769.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15125842299.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5921/6533/files/sowemukufiji.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_off00006e09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E09 4976 bytes
SHA-256: 19b20e43a5d9b392326502b4429fedf29baf7320fd245469ec8c7ae5512e4e76
font_01_sfnt_off00007f0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F0A 15324 bytes
SHA-256: cb474150149fe38dbe74fb773fdcc22b35eef60568653ae8f4530c9d11f725eb

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