Malicious PDF — malware analysis report

Static analysis result for SHA-256 8634e8ddd7c7a25a…

MALICIOUS

PDF

37.8 KB Created: 2020-08-18 18:52:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: da96016af20afd43f933805417890053 SHA-1: 5178448040eaeede54484d7c0fa61778a1758fc8 SHA-256: 8634e8ddd7c7a25a32e32c94d389342aa2b2b2e09fa1be2f4684a6dbd0cebce4
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to Shopify domains hosting other PDFs, suggesting a link farm or SEO manipulation tactic. One critical heuristic identified a redirector link to 'ttraff.cc', which is known malicious infrastructure. The document body contains text that appears to be a lure, and the embedded URLs strongly indicate a redirection to a malicious site, likely for phishing or malware distribution. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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.cc/pify?keyword=seara+asta+facem+show In PDF document text
    • http://lepifojus.kidney4keisha.com/uploads/1/3/1/4/131408791/9099526.pdfIn PDF document text
    • http://files.ctslouisstlaurent.com/uploads/1/3/0/7/130740177/kinomopapomiziz.pdfIn PDF document text
    • http://api.new4.me/audio/21e230798392476fd5d172c5904f3e3bIn 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/1/0432/8180/9558/files/2._54-_0_11._4_old._firm.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9988/1639/files/etrian_odyssey_v_classes_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1599/4529/files/astm_a532_class_ii_type_b.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/5407/5799/files/raleway_semibold_font_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6308/3170/files/86660870239.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/49181926903.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7777/1164/files/249388055.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8300/5093/files/kupofinipul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57955619809.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6145/1681/files/95320984110.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7127/4146/files/vowulonetaborege.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_off0000436b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x436B 4920 bytes
SHA-256: bf08d782f069ea699a06a826e89c237560a7c62e3d1df5163fb88a3af0c3c29e
font_01_sfnt_off00005425.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5425 12036 bytes
SHA-256: 2cf0b56eda0c156443a125c792b986101fc5d421df5f25835fd7b665940ae008
font_02_sfnt_off00007b0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B0E 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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