Malicious PDF — malware analysis report

Static analysis result for SHA-256 0537edc61566c5fa…

MALICIOUS

PDF

56.0 KB Created: 2020-09-06 02:29:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f6a3713a3c2a626321c5273fac1fa3da SHA-1: a8658b1ac2b5a005212728707de5510a914ff94a SHA-256: 0537edc61566c5fa7c66c9900fd79d0c2f26dd7772ec9585a2674a32000dda26
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service. The primary redirector URL is 'https://ttraff.link/pify?keyword=basotho+initiation+songs', which is flagged as malicious. This suggests the document is part of a phishing or scam campaign designed to drive traffic to malicious infrastructure.

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.link/pify?keyword=basotho+initiation+songs In 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/1/0432/6352/5029/files/rurepe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/7309/8143/files/dewufatujarif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8555/3061/files/zuseni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8506/8456/files/14692634978.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7328/2983/files/kebukekafovusumov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8311/1323/files/vugezajonulotajudomixat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2032/8853/files/56159287592.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0926/9156/files/fosigajoxiba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7526/3909/files/tofugetevadopuzi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0409/9735/files/zx_spectrum_basic_programming.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0677/8784/files/50371795263.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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_off00007f2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F2E 4868 bytes
SHA-256: 26fc769f8321a14a6790251ea40155bf6ab606a621723acf8afc9b5d68c18c4b
font_01_sfnt_off00008fc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FC3 10392 bytes
SHA-256: bdb30e3257c264cec6f64c39e722089448551bce8440e72b2f90a10d9fcf5f0b
font_02_sfnt_off0000b389.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB389 18776 bytes
SHA-256: 96ab3042575e6db92b7bad1aac42ed8095504d59665b3326cf7857e97d54a14f

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