Malicious PDF — malware analysis report

Static analysis result for SHA-256 1273fb37b8d51d73…

MALICIOUS

PDF

71.8 KB Created: 2020-08-24 05:21:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5122ac1c22af92d4baa18729e3034ace SHA-1: 658b89690ba5dd18afef9b2551a27251a5c00846 SHA-256: 1273fb37b8d51d7303ca87c9c30672da226a798da84b6db542e255ba006d47af
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, pointing to a phishing attempt. The embedded URL 'https://ttraff.com/pify?keyword=lust+caution+movie+parents+guide' is identified as a malicious redirector, likely used to funnel victims to a phishing site. The document body, though heavily obfuscated, contains the same URL, reinforcing the phishing lure.

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=lust+caution+movie+parents+guide In PDF document text
    • http://files.biocoreintegration.com/uploads/1/3/1/4/131453208/5236536.pdfIn PDF document text
    • http://niliko.threadsolelife.com/uploads/1/3/2/6/132682076/jaminemikeg.pdfIn PDF document text
    • http://tuguregad.updateshappen.com/uploads/1/3/2/7/132740892/12e01d7.pdfIn PDF document text
    • http://widajufi.depthstiny.com/uploads/1/3/0/8/130814579/jajuvabegojenoj.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/1/0438/4981/0070/files/28673594464.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6623/7852/files/9811751340.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9979/8166/files/aligarh_movie_480p.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mubexuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7301/9808/files/rumomi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2889/6161/files/fozilowobi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4311/0564/files/bloody_roar_psx_rom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6500/7509/files/4187453580.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5228/3542/files/9339194894.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zejakepujubuk.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_off0000dad7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAD7 5360 bytes
SHA-256: 18618bab6955f47aa18780cbf40814e3d3bb7490849741023145efda1ec18a04
font_01_sfnt_off0000ed01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED01 10948 bytes
SHA-256: f7b22f3022925b12fa03d04a27158205b1139b4f7e804862ca3e7bbba86e45c5

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