Malicious PDF — malware analysis report

Static analysis result for SHA-256 60359b4b49431b23…

MALICIOUS

PDF

43.9 KB Created: 2020-08-05 14:29:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a76f3f690cff0abb3556eba19896ec61 SHA-1: bd12c4b0b68c73d42f5d1b054092f33b7f1913ec SHA-256: 60359b4b49431b2373ad8b8090123ab6e6d45b8d05e5d78ef06794e3c0ce0aad
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous links, many of which point to a redirector service (ttraff.com) known for malicious activity. The document body and embedded links suggest a lure to download files, disguised as study guides, which is a common phishing tactic. The ML classifier also strongly indicated maliciousness.

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=az+900+microsoft+azure+fundamentals+study+guide+pdf In PDF document text
    • http://files.stbrendansccm.org/uploads/1/3/0/9/130969045/bupafurubenupe-falasirumojave-kawerudapuxe.pdfIn PDF document text
    • http://files.rosellepark247.org/uploads/1/3/1/4/131407818/mitovekozejof_safoto_gepupakawumu.pdfIn PDF document text
    • http://files.terrraofwyoming.com/uploads/1/3/0/8/130815277/bosal.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/1/0429/4003/9324/files/mechanic_labor_time_guide_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9952/1181/files/97503456843.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2971/7407/files/44776899023.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9258/8184/files/pibawunewufufavewenebibo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7256/0033/files/wps_file_extension.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7651/8049/files/negofazasa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6686/0455/files/pinowutugelavopiferivifu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6556/5589/files/bezidanigexufanuxovive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0773/8019/files/sekiro_ashina_sake.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7453/6103/files/convert_image_to_grayscale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8577/5519/files/rivud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2021/2635/files/zafakemufoximurubesome.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
🗂 Part of campaign: oldgoatlures.com 6 samples

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_off00006aa2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AA2 5916 bytes
SHA-256: e710e299e1fbf2f1e4bf19e7a600ec6fd3a195f759bdaa2ed92b9992a154c61d
font_01_sfnt_off00007ec1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EC1 10412 bytes
SHA-256: 6da8b5c94fe5cadc9379cb739914ab57f1c2c2820033c2cadad5016a801fb721

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