Malicious PDF — malware analysis report

Static analysis result for SHA-256 17444d0f46ba8fe3…

MALICIOUS

PDF

65.2 KB Created: 2020-08-18 14:11:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e9a2d289f4c8d4a2acec6f78d8644838 SHA-1: 01e0ae7a26e9fc9ce0e076ac3c602dee7915b9ee SHA-256: 17444d0f46ba8fe303bb2616403b9822a7bb9b1a4d9458dce3f1838f0aeba64d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating it's a malicious redirector, specifically linking to 'ttraff.com' which is flagged as malicious. The document body, though heavily obfuscated, contains the same URL, suggesting the primary purpose is to redirect the user to this malicious site. The presence of numerous external PDF links further supports the idea of a link farm or SEO manipulation tactic to drive traffic to the malicious redirector.

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=ase+guidelines+regurgitation In PDF document text
    • http://kupuga.jwschaefer.com/uploads/1/3/1/0/131070767/nupodipenamafi_wigab.pdfIn PDF document text
    • http://files.teamzoecancersucks.com/uploads/1/3/1/3/131383892/jagadawuwune.pdfIn PDF document text
    • http://fidudanoj.judithfan.net/uploads/1/3/2/7/132740309/4a56683502f94.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/1/0434/7789/3270/files/28349266118.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8244/0103/files/nulewa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/1220/5216/files/cash_book_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7952/3751/files/frigidaire_gallery_dishwasher_installation_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4914/8838/files/43392697199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0696/8483/files/zemesolunuvokamisorirudot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/xuzuzebaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3260/8921/files/solidworks_2012_free_trial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6174/7605/files/sowolibitodaziza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8178/5753/files/nolubemizetowazoposozixa.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_off0000c425.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC425 4984 bytes
SHA-256: a97afc0a242d12ffc30efa5eb184d325f6bd224dbc25910a3e42f5a469d77c17
font_01_sfnt_off0000d519.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD519 10304 bytes
SHA-256: 25ca635637791b4864c8c2f636e12b0944d14961c11d26849b573f624893b35a

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