Malicious PDF — malware analysis report

Static analysis result for SHA-256 b63c68ea83bc0157…

MALICIOUS

PDF

35.6 KB Created: 2020-08-19 05:53:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5e5112b16ed0220eb840139eae923e13 SHA-1: 304fb34a1fd93167d74afe3136ff99f5bf4bf34d SHA-256: b63c68ea83bc01572cd85d72494ecadc51d27aa9e233cb80b37ca3d4ff191d6b
194 Risk Score

Malware Insights

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

The PDF contains a deceptive document body masquerading as a manual for a rice cooker, which is a common lure. It embeds numerous links, with the primary one identified as a malicious redirector. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms this, pointing to ttraff.com. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, likely for SEO manipulation or to host further malicious content.

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=aroma+rice+cooker+model+arc-+936d+manual In PDF document text
    • http://files.magicaljohn.com/uploads/1/3/0/8/130814666/dozamefo_posonano_befuta.pdfIn PDF document text
    • http://files.mimiandjoel.us/uploads/1/3/1/4/131453712/fisosivesusu.pdfIn PDF document text
    • http://pewakunis.foodfixations.com/uploads/1/3/1/6/131606027/6fe91.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/1/0437/2440/6935/files/cv_for_medical_lab_technician.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6976/7831/files/81645790495.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8615/1833/files/ralifite.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7518/2496/files/what_is_pulmonary_function_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8043/3302/files/make_smaller_file_size_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3825/2957/files/crowdsource_reporter_github.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/1496/6695/files/vevozazegagefapi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1284/8790/files/pirabogazomuzokatelukojan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4440/4374/files/citroen_berlingo_2020_manual.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_off00004df8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DF8 5464 bytes
SHA-256: e3608777dada59ccbcd41eaf84e7dfba3bf4fdd99ba57360a7ea010ae3d7d1cc
font_01_sfnt_off0000606c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x606C 9768 bytes
SHA-256: 4268a9d8676f1b4d501e7447f27996c4a876439043a5f8673f01f6b756ba04ee

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