Malicious PDF — malware analysis report

Static analysis result for SHA-256 155cd1c6e5fe28f8…

MALICIOUS

PDF

45.8 KB Created: 2020-08-04 22:16:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 40a45f415e2c76d38d14f88aec19a289 SHA-1: 8faace09ee8d652eab5b5f1a06f48e89912b51bf SHA-256: 155cd1c6e5fe28f865e5c4d88f718ca6edb520adc005cd7e2cc51e853ac9c425
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic identifying a link to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=arifureta+light+novel+vol+1+pdf'. The document body and PDF facts indicate a large number of external PDF links, suggesting a link farm designed to redirect users to potentially malicious content. The ML classifier also strongly flagged this PDF as malicious.

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=arifureta+light+novel+vol+1+pdf In PDF document text
    • http://files.markellscloset.com/uploads/1/3/2/7/132741555/tiladolafijujazo.pdfIn PDF document text
    • http://files.manestreethaircompany.com/uploads/1/3/1/4/131409274/b41fbfe.pdfIn PDF document text
    • http://files.biblebonanza.com/uploads/1/3/1/3/131381799/lejejeb_nimiki_fususiwonoj_pitip.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/1/0431/0355/1645/files/lavuvoje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5610/2565/files/52528295287.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4361/7958/files/moriencia_augusto_roa_bastos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5661/0971/files/gaxafoxim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3234/6773/files/xuvujilomipuzijupejen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8646/2620/files/96030479446.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dadimutixiwukigojubiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7401/0782/files/84532328574.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0522/0776/files/interventional_radiology_cardiology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5369/4626/files/75707932129.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7301/0850/files/zomagipizipasakofoso.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F7A 6372 bytes
SHA-256: 1bc964cc54542c43e24c0982c17c11614cff6bcd749eb61f5deb193eccfa1a77
font_01_sfnt_off00007560.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7560 5228 bytes
SHA-256: 728fd7edee7354188212b48f94852351e8ef8284ab6dd7b7fc52ee9dc20d9fd4
font_02_sfnt_off0000872f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x872F 10256 bytes
SHA-256: d118d9227a036950c70629b14e48e901e18029779f7dd70181bec264f6da4843

Open this report in the interactive analyzer, or submit your own file for analysis.