Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c78f76d575ccaca…

MALICIOUS

PDF

41.5 KB Created: 2020-08-01 21:11:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c748a33ca4d83c9e952eb621b3e09a12 SHA-1: 8253680b120358c5dbc405a79b2768c702874890 SHA-256: 5c78f76d575ccaca87721b0a05a6b26d040ebbf2bad7cde30006ad3c6d7d916e
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 malware distribution attempt. The embedded link `https://ttraff.cc/pify?keyword=gmail+read+receipt+without+recipient+knowing` is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to this URL and other Shopify links, suggesting a lure to download further content.

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=gmail+read+receipt+without+recipient+knowing In PDF document text
    • http://files.harrietslaughter.net/uploads/1/3/0/8/130813921/812699.pdfIn PDF document text
    • http://files.tradepennystock.net/uploads/1/3/2/8/132814980/3088012.pdfIn PDF document text
    • http://files.thedelidownstairs.co.uk/uploads/1/3/2/7/132712034/wetosixoriwofu.pdfIn PDF document text
    • http://www.fotolia.com''gt;Fotolia.com/a'gtIn 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/1/0433/0687/7080/files/zebegevuda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6893/8647/files/mutelabomipir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2427/7923/files/mobixexabuwejifirure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/45235944591.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6086/1845/files/lutozezafevu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6173/0718/files/rogokoliribebuled.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7194/6398/files/bimap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7047/8746/files/65962278732.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4852/5206/files/fiwozuwigezevugaxav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5870/8136/files/adventure_time_season_9_episode_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4352/8609/files/gamejibunexibisa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6148/6503/files/nefewejakitipupopo.pdfIn PDF document text
    • http://www.fotolia.comIn 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_off00006390.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6390 5496 bytes
SHA-256: 984b2aa0dc6c352de05f6cae55151d93e906d5c9b6733f2c387e539a6d67b0de
font_01_sfnt_off00007625.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7625 10076 bytes
SHA-256: 671285b736335f43abd5b7d6f88280f5eab889639f868b5d590d7bfa1e71938b

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