Malicious PDF — malware analysis report

Static analysis result for SHA-256 dce1e36b5e608495…

MALICIOUS

PDF

33.3 KB Created: 2020-08-15 03:32:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c88b6cc275395bbef9bc7a901f8fd55e SHA-1: 1868b8fdbed512a8979a499bce11258d6c4825db SHA-256: dce1e36b5e608495eee36e8e2d022efa82b818f996fd94236835b45fd55e674c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=g+f+bf+video+song'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on shopify.com. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the presence of a malicious redirector suggests the primary intent is to lure the user to a compromised site.

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.ru/pify?keyword=g+f+bf+video+song In PDF document text
    • http://files.taralinda.com/uploads/1/3/0/7/130739836/lonodotefu_ponupasi_guvumorulixol_fijoda.pdfIn PDF document text
    • http://files.onehopecoc.com/uploads/1/3/1/4/131482886/zakunorunizu-gopovusevusug-tinivomutebira.pdfIn PDF document text
    • http://bubisolup.cassinfamilyvineyard.com/uploads/1/3/0/7/130738890/kotudimoxaxiz.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/1/0429/7526/4919/files/apgenco_syllabus_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1715/0368/files/kejov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0623/8613/files/29001226796.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4923/8178/files/fe_mechanical_review_manual_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4373/4172/files/dezegonubil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5697/1432/files/46698366524.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0900/4952/files/wovapixa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6282/0005/files/jubixedebimotena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8697/6926/files/wapozofafotov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6995/5486/files/14110853857.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_off00004149.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4149 4968 bytes
SHA-256: e30f5b250e61018ef1b23bc6f86392811d6aa8da615cf9f6e0487b49e0789cdc
font_01_sfnt_off0000525b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x525B 11992 bytes
SHA-256: a0c05777c9f8c092ae9972c1580d3bfe44e859ad97c81d6af378b1298457b104

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