Malicious PDF — malware analysis report

Static analysis result for SHA-256 372ea9feb45d4b09…

MALICIOUS

PDF

41.4 KB Created: 2020-08-16 10:58:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7e96a26d01b55f275fd6f2a50dad5377 SHA-1: fee7d47af658179e4ff815c4d3da85829c0e7383 SHA-256: 372ea9feb45d4b0990abb824f9e3057b170e65caf5a455e1a6520acf7ea9f2fb
202 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. The document body also contains this URL, along with a call-to-action phrase suggesting a download lure. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm strategy, likely to obscure the malicious destination. The primary malicious URL is 'https://ttraff.cc/pify?keyword=magical+book+series+analytical+reasoning+pdf'.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=magical+book+series+analytical+reasoning+pdf In PDF document text
    • http://files.drugfreeharrisoncountywv.org/uploads/1/3/2/6/132695575/218ee2c5e.pdfIn PDF document text
    • http://files.youthadvocatespdx.org/uploads/1/3/1/6/131637881/depisaf_tiwekofebukumo.pdfIn PDF document text
    • http://wuveli.sarahhawkyard.com/uploads/1/3/2/3/132303382/dukaxikememepijagiz.pdfIn PDF document text
    • http://files.maslowspeak.com/uploads/1/3/1/4/131453934/3554054.pdfIn 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/1/0434/3998/0710/files/definitive_software_library.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6754/6527/files/66788310122.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0052/9049/files/39373749163.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/1666/1664/files/cheddar_gorge_sport_climbing_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5101/6601/files/58399010489.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9050/2051/files/62922789295.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9672/7957/files/20543668991.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4543/7083/files/5840684718.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8814/2743/files/alimentacion_enteral_por_sonda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6590/1210/files/sorajamotupativaluvomegid.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

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004b29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B29 5424 bytes
SHA-256: d1d23934372405e6cc50ca10e2cc65d330388804e0a809325982af11fc2acad9
font_01_sfnt_off00005d9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D9F 2116 bytes
SHA-256: 8db65adc699bed2ed4e99b174e414cace916d9ae25f4e5597e3d94de4d1667c8
font_02_sfnt_off00006747.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6747 10176 bytes
SHA-256: 5728f4cdb95f5dd9b40d8ab0836737aa3f8f178fe9503dadabad85cf42d7e52b
font_03_sfnt_off00008a16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A16 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3