Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b47b3b6901929ad…

MALICIOUS

PDF

38.7 KB Created: 2020-08-19 00:49:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 99805f11c5966666e797b786e14a3bb2 SHA-1: a643e981ddb2cccf921f27f0bea26b119de0fb3e SHA-256: 5b47b3b6901929ad42274aa0fc17364bdffb47ec8823c7ad78d10346a2d6b83b
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector, ttraff.ru. The document body and heuristics indicate a lure for a 'free employee id card template' which likely leads to a phishing or malware download site. The ML classifier strongly indicates 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.ru/pify?keyword=free+employee+id+card+template+microsoft+word In PDF document text
    • http://files.heartnhands.org/uploads/1/3/2/6/132681210/fotitobupomumiz.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/1/0430/5233/5255/files/rexiseremogaxakuzipak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0532/0088/files/instabeauty_photo_editor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8520/9507/files/asepsia_y_antisepsia_en_cirugia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6794/0765/files/lerodegabim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4166/7734/files/how_is_climate_different_from_weather_answer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6693/2902/files/87042205751.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9892/2392/files/fobopulezinoxawozizumu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8697/6926/files/dagujolebiwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3055/2474/files/bobina_electrica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3426/3199/files/92945211984.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3482/9222/files/vadigivabepifibibe.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: acscmerch.com 7 samples

Related samples 4

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_off00005a2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A2A 5448 bytes
SHA-256: 76e8e27f86a17453ebe1e3af3d291aeab701d62e3126ed5d8d8705f0177dd8b6
font_01_sfnt_off00006cb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CB0 9828 bytes
SHA-256: 2ba601f7c49f5009a782b7705a44ce79b00938521e9ea5f52237743bd59531f3

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