Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f6cc280323a5c7f…

MALICIOUS

PDF

40.1 KB Created: 2020-08-19 06:12:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ce3dc61c429109eae82cfb2e3af03679 SHA-1: 585e80d4dcfefba9957bf632b6de2a29a513b0ff SHA-256: 9f6cc280323a5c7fcb78bdf99a58bc746c7ebccbff04a3a22e0a279cad0f34b0
202 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying one as a known malicious redirector. The document body, though obfuscated, contains text related to 'email verifier software free full version' and the malicious URL, suggesting a phishing or scam lure. The ML classifier also strongly indicated maliciousness.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=email+verifier+software+free++full+version In PDF document text
    • http://files.jbmi.net/uploads/1/3/1/4/131437725/713083340a55c3d.pdfIn PDF document text
    • http://files.uncommonpracticesweboffice.com/uploads/1/3/1/3/131381706/7193900.pdfIn PDF document text
    • http://wevuzor.futurefitness4allofyou.com/uploads/1/3/1/4/131454165/sejogunekizema_bosepi.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/1/0430/0098/7801/files/94414508292.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0378/1015/files/john_deere_license_plate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8702/8641/files/bksp_admission_form_2018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5771/6119/files/vudemasaxebajen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6590/1210/files/yellow_pages_uae_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/movikulewerudazuxedo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0934/2621/files/national_time_server.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8319/2738/files/battle_star_gallactica_torrent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/0688/9882/files/amcas_letter_request_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9353/9478/files/81232105262.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8379/2533/files/sodufegofu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6581/8789/files/84766140696.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 6

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_off0000600e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x600E 5024 bytes
SHA-256: 5ab0710072a6bdbbde7b7aeda96cd5eee37d2710030c40b19713624649b25b37
font_01_sfnt_off00007120.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7120 9980 bytes
SHA-256: a2c0d528e9f9e912d1dadf66a99616ba39324f53dbe3fe5bbb8bea915e129615

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