Malicious PDF — malware analysis report

Static analysis result for SHA-256 399932cdceed84d0…

MALICIOUS

PDF

68.5 KB Created: 2020-08-04 04:52:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0cd7c32876326ae2b761601cb03a9cb1 SHA-1: 4bf9d24ff459e78477ab35ba9e5bfc7df8329420 SHA-256: 399932cdceed84d06672edc100c9c4462d0a9d43a660da78415bb6f47e0592af
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure. Additionally, it contains a large number of external PDF links, characteristic of a link farm. The embedded URL 'https://ttraff.cc/pify?keyword=sports+provisional+list+pdf' is the primary indicator of malicious intent, likely serving as a gateway to a phishing or malware delivery site. The ML classifier also strongly indicated 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.cc/pify?keyword=sports+provisional+list+pdf In PDF document text
    • http://files.entesanomicos.com/uploads/1/3/1/4/131437584/fawapelukuze.pdfIn PDF document text
    • http://files.bingie-residents-association.org/uploads/1/3/2/6/132682281/foponoja.pdfIn PDF document text
    • http://files.schlickscience.com/uploads/1/3/1/4/131406391/vajipatenuvijuxazi.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/1/0432/4923/8179/files/xejepoligaluxonojalud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1428/3686/files/57594069111.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6150/1336/files/pedogumojesijibekurivud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/19441108854.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2187/6900/files/69587482138.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2936/4885/files/18602804166.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0463/2992/files/97893724736.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8995/8814/files/bapuge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8440/6181/files/12832151987.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3406/7615/files/zisosomulomomesowa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3031/5159/files/fuxakev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/76588695657.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 2

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_off0000c3c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3C0 5200 bytes
SHA-256: bb30f067e0ff073d25c548eaa61c955d5afee22a106c8a5c757f027630e638a7
font_01_sfnt_off0000d581.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD581 15360 bytes
SHA-256: c69b8980f4fe7a5479d490837e27a68f59024860f1eec2a2c8c22a216226903b

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