Malicious PDF — malware analysis report

Static analysis result for SHA-256 10fa37ae4eb1bb66…

MALICIOUS

PDF

41.0 KB Created: 2020-08-15 00:52:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4db5c7ac93c948db40c8f0ae2b3663a3 SHA-1: 35555fbe125d73d565b3c37fa528e7ce8cb753ab SHA-256: 10fa37ae4eb1bb66140859d7005331b9acd5d6e9a44c1f65704405534712843e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.com) known for malicious activity. The document body, though heavily obfuscated, contains references to the redirector URL and benign-looking Shopify URLs, suggesting a link farm designed to obscure the malicious destination. The ML classifier strongly indicated maliciousness, supporting the interpretation of a phishing or scam lure.

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.com/pify?keyword=barbie+doll+wala+cartoon In PDF document text
    • http://zojarid.the-therapy-centre.com/uploads/1/3/0/7/130776330/8879766.pdfIn PDF document text
    • http://nixomumu.cvma49deuce.net/uploads/1/3/0/8/130874359/1fbee942e2.pdfIn PDF document text
    • http://tuwir.morganelwell.net/uploads/1/3/1/3/131398140/c35cc.pdfIn PDF document text
    • http://files.zareensrestaurant.com/uploads/1/3/0/8/130813757/0486f92e269.pdfIn PDF document text
    • http://files.gondorwriterscentre.com/uploads/1/3/2/6/132682070/3269952.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/1/0427/9340/2534/files/woxasexusugije.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5670/9273/files/aumentativos_e_diminutivos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/44603331863.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4164/3928/files/90575751654.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0141/1744/files/28557353478.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2025/4375/files/principle_centered_leadership.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5627/4339/files/how_to_insert_date_in_google_sheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7093/9541/files/71327786574.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4936/1314/files/kebubusugunid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5283/3695/files/dezarodarafumi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0590/1991/files/21147203348.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9413/8277/files/httpd_conf_example.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000622c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x622C 5036 bytes
SHA-256: 50be361c3c5f77edba11054470e86ec618a1105d9c812194128728b247f74fb7
font_01_sfnt_off00007367.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7367 10424 bytes
SHA-256: 4129c61c5c336bb47d478734a2b1f6038035b5314f41d380355223a122e8d264

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