Malicious PDF — malware analysis report

Static analysis result for SHA-256 e792b72f66c7902d…

MALICIOUS

PDF

43.8 KB Created: 2020-08-19 05:42:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 015bb3631c46005fb5ed02c9141e32f4 SHA-1: 8ed7c97cc01e7f522726d94249e72302cfc0cd66 SHA-256: e792b72f66c7902d45c6938702e19e7d85e15c207df030e8d4188d1eab2c5df1
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to PDF files hosted on Shopify. One of the primary links directs to a known malicious redirector. The ML classifier also flagged this PDF with high confidence. The document body appears to be corrupted or obfuscated, but the presence of the malicious redirector URL and the link farm structure strongly suggest a malicious intent, likely related to SEO manipulation or further payload delivery.

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.ru/pify?keyword=precalculus+solving+equations+worksheet In PDF document text
    • http://files.bensonelectric.com/uploads/1/3/1/3/131397996/97ffdb6bc3879.pdfIn PDF document text
    • http://files.nextlevelthermal.com/uploads/1/3/2/6/132682913/5758246.pdfIn PDF document text
    • http://libesigud.myuntoldpleasures.com/uploads/1/3/2/6/132683071/8534005.pdfIn PDF document text
    • http://files.topqueensbeautythrone.com/uploads/1/3/2/6/132681556/zerolaloxugerivamizu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7373/1741/files/nigiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7075/8820/files/45667948210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/89120948070.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7076/6750/files/zesorezikerogolegawap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2436/7266/files/80632812610.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/2317/9416/files/animated_movie_maker_online_free_no.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6704/0154/files/discord_bot_scripts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9063/2101/files/apache_camel_in_action_second_edition_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7470/7868/files/brick_breaker_gungeon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6699/7398/files/audio_cutter_software_for_mobile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9911/7986/files/71077049385.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 4

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_off00005aa3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AA3 5288 bytes
SHA-256: d2338f24e5645a9a4b64ef64517bb36378505e763a343bcaa96b70a969069000
font_01_sfnt_off00006c9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C9B 12268 bytes
SHA-256: 20ee771666c9706d83d8d5b24f0fcd27dfdada853b38f736de2e5980193283ba
font_02_sfnt_off000093db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93DB 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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