Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a471282e8c5dea8…

MALICIOUS

PDF

41.8 KB Created: 2020-08-15 05:14:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 52a18b239504c1d5600daf71852e3f38 SHA-1: 1cb6afae9cbdcb3a5b8417bfb9ae71bc014800d1 SHA-256: 0a471282e8c5dea82f7ddd88d07645d0e2ec20fd440760f8803d4de0538c8cd8
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector URL, indicating a phishing or scam attempt. The ML classifier strongly flagged this PDF as malicious. The embedded URLs, particularly the redirector `https://ttraff.cc/pify?keyword=bpi+ofw+loan+form`, are designed to lead users to malicious content, likely for credential harvesting or malware distribution.

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=bpi+ofw+loan+form In PDF document text
    • http://files.kortisranchwhitetailhunting.com/uploads/1/3/0/7/130740049/2839428.pdfIn PDF document text
    • http://files.villageyogaworks.com/uploads/1/3/1/4/131482808/4146453.pdfIn PDF document text
    • http://papomadus.treeb.org/uploads/1/3/2/3/132303382/716fe086c.pdfIn PDF document text
    • http://dinaf.megantatum.com/uploads/1/3/1/6/131636951/41cfbd.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/1/0428/1748/7011/files/lebomopumox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4774/6721/files/87466292481.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2476/0484/files/57917534154.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2420/3424/files/causas_y_consecuencias_del_sedentarismo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8309/4434/files/gunomegap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/5029/9555/files/acquired_immunity.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4844/9701/files/authentic_leadership_development.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/3789/5325/files/sifuke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6356/5718/files/diroxigusodabesu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4323/2661/files/recreational_activities_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1448/7207/files/lonely_planet_egypt.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2723/2918/files/80856274188.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 3

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_off0000648b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x648B 5008 bytes
SHA-256: 1c10a70a7694b10f8651c2bd54a93ef6ba1aa8ad3522aeaedef3424c4fc5bd03
font_01_sfnt_off0000758e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x758E 10748 bytes
SHA-256: b3c291d82f3faacffcafa7bb6fc0b03d43a5651cd665dd6d0ec68749c697ae8c

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