Malicious PDF — malware analysis report

Static analysis result for SHA-256 09515e0a92ca8160…

MALICIOUS

PDF

39.5 KB Created: 2020-08-07 08:27:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4214085a64086478d1141496e17cbdb8 SHA-1: ea9436673c332b7cd35f4ee9313a38cc1fc76b9b SHA-256: 09515e0a92ca816056ffc6e438418c6c6f4203a7cea29fe04e754bd34612249d
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to redirector infrastructure. The primary redirector URL, 'https://ttraff.cc/pify?keyword=ataxia+espinocerebelar+tipo+3+pdf', is identified as malicious. This suggests the document is designed to lead users to malicious sites, likely for phishing or malware distribution, under the guise of providing a PDF document.

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=ataxia+espinocerebelar+tipo+3+pdf In PDF document text
    • http://kazabo.nfordtransitsystem.com/uploads/1/3/1/4/131408899/6dd06.pdfIn PDF document text
    • http://fobituv.discoveryourpurpose.net/uploads/1/3/1/4/131437812/navejaduna_wunivoxunuga.pdfIn PDF document text
    • http://roreduj.fwgreenandblue.com/uploads/1/3/0/7/130738993/bdf22d8f.pdfIn PDF document text
    • http://files.tafffurniturestore.com/uploads/1/3/2/8/132815004/227989040e.pdfIn PDF document text
    • http://kiler.darrenellisdance.com/uploads/1/3/2/3/132303382/1947373.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/1/0432/9088/6312/files/99083033290.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2931/5239/files/44300522918.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1275/8426/files/57606366070.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8580/7269/files/lebasesemop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8501/1871/files/3033210016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/65587220918.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1103/7589/files/86194361352.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2423/6199/files/21831902549.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7128/4135/files/ketubufaresejenebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1357/0709/files/kuwenuwekerirox.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_off00005c80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C80 5508 bytes
SHA-256: 3f21f479a4632dac1c4fca97abb580ded392faabf71a902bbe9ca67a0629805e
font_01_sfnt_off00006f4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F4B 9960 bytes
SHA-256: dd3d41912c78d2b1be9290a5539b02d7ad973d0214c1c82ec4be171773ec32ed

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