Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8be11adaca1c2ae…

MALICIOUS

PDF

33.1 KB Created: 2020-08-18 13:29:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 79cec556b179af7fe11ecc1dc7de2b00 SHA-1: 64e921d37f5bc3f92e41b92801ff03e8717e2d72 SHA-256: c8be11adaca1c2ae326de14324948d2873252bb36a97ad22a60cc678f6519ff1
234 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a social engineering lure, instructing the user to install a browser extension. It embeds numerous links, with the primary malicious link directing to a redirector service. This suggests the document is part of a phishing or malware distribution campaign, likely aiming to steal credentials or deliver further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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=roboform+chrome+extension+missing In PDF document text
    • http://jezekonej.desmoinesmarina.com/uploads/1/3/0/8/130874493/7836351.pdfIn PDF document text
    • http://files.madeincommon.com/uploads/1/3/2/6/132681579/megew_luribi_pawiruni_benomasatedumow.pdfIn PDF document text
    • http://files.winghamprc.org/uploads/1/3/0/8/130814169/ff064c6a76.pdfIn PDF document text
    • http://files.clipture.net/uploads/1/3/0/9/130969543/7a971979da11.pdfIn PDF document text
    • http://files.allergyeasyliving.com/uploads/1/3/0/8/130814200/kilevala-sisav-kazogawu.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/1/0428/9354/1532/files/restaurant_business_plan_template_sample.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8156/2280/files/9342029482.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5943/6951/files/descriptive_statistics_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4855/0050/files/private_school_interview_questions_for_teachers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3256/8220/files/background_drawing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3828/5725/files/56934991732.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5317/1356/files/military_alphabet_and_meaning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1773/1229/files/bapeso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2738/1924/files/93029030428.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/24564758473.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7938/5756/files/warhammer_40k_apocalypse_7th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9826/7029/files/greasyfork_classic_google_favicon.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004666.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4666 5268 bytes
SHA-256: 4623ed8d80f24a3cb9db24addf0f36ee4ab5e8dc7f04151645d220ebe06c654e
font_01_sfnt_off0000583a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x583A 9148 bytes
SHA-256: d35584c9c993417ff4c4ad921c06a9ed1f60a18b3566fde07d5329c6380e48d4

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