Malicious PDF — malware analysis report

Static analysis result for SHA-256 12ca7479debc224c…

MALICIOUS

PDF

41.6 KB Created: 2020-08-03 23:42:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8282fabd3a87b4c8be29acaf3202f657 SHA-1: 9c635fe79b8d8647d4aa6002ccaeaf694998a503 SHA-256: 12ca7479debc224c867c41ce6e54e7773807fabcc622deba527a931293bd9b9f
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which are part of a link farm designed to manipulate search engine results for "free download" keywords. The primary redirector URL, https://ttraff.cc/pify?keyword=history+of+ancient+egypt+pdf+free+download, is flagged as malicious. This suggests the document's purpose is to drive traffic to potentially malicious or ad-filled sites under the guise of providing free PDF downloads.

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=history+of+ancient+egypt+pdf+free+download In PDF document text
    • http://files.councillpsychiatric.com/uploads/1/3/0/7/130775561/jisawodanoseve.pdfIn PDF document text
    • http://files.itsnotstreaming.com/uploads/1/3/0/7/130738673/26071.pdfIn PDF document text
    • http://files.sarahrosepeterson.net/uploads/1/3/2/6/132695493/1386074.pdfIn PDF document text
    • http://files.hotsill.com/uploads/1/3/0/7/130775859/1f104.pdfIn PDF document text
    • http://files.memphisjrscience.org/uploads/1/3/0/8/130813965/femaxepokox.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/1/0434/2611/9847/files/ty_beanie_babies_prices_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5481/7690/files/wokanozewotosesinamijigu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0911/3253/files/30927954062.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/31968244380.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7921/2959/files/navy_seal_workout_routine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5006/6339/files/tosuto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1618/2166/files/79014554242.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7013/6218/files/goromajij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0962/2687/files/vowugasikuferorajaziraw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6019/9573/files/todesidaruxugofubi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1293/2255/files/38455467616.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_off00006320.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6320 5476 bytes
SHA-256: a10306ece93c733c3ef9aa87ad45e882dc662071786f829d343bf52ac4453909
font_01_sfnt_off000075ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75EA 10364 bytes
SHA-256: 969071603a1c15899d8125bc9658e26c3e18c430a5ef14833353e43fd607fe72

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