Malicious PDF — malware analysis report

Static analysis result for SHA-256 35400bb3d5ebb012…

MALICIOUS

PDF

52.6 KB Created: 2020-08-20 02:17:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a802f9551d2941ab1e29fd751f521d03 SHA-1: c7f7c3b01c3db82e796bf8ef27ecd932a59120e7 SHA-256: 35400bb3d5ebb0125b0f5eecc1b737783eca5e841c33686cc57d84ed84f201e0
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 'ttraff.com'. Additionally, it exhibits a PDF link farm, with many links pointing to Shopify domains, suggesting an attempt to obscure the malicious destination. The document body, though heavily obfuscated, contains the malicious URL and a benign-looking title, reinforcing the lure.

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=arc+length+area+of+sector+worksheet In PDF document text
    • http://dijome.magnuskravik.com/uploads/1/3/2/8/132816066/4471319.pdfIn PDF document text
    • http://files.hilltopangusfarm.com/uploads/1/3/1/3/131382078/7985637.pdfIn PDF document text
    • http://files.natangweruben.com/uploads/1/3/1/4/131454986/sakuxumuk_janido_woneturaradu_titoxe.pdfIn PDF document text
    • http://porusixu.whyhellogreetingcards.com/uploads/1/3/0/8/130874540/01e8ed093721246.pdfIn PDF document text
    • http://fogaw.cool2bnerdy.com/uploads/1/3/1/3/131397989/bapolirabizupavubi.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/1/0436/1843/5229/files/final_fantasy_vii_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4275/8056/files/xuvizabizuveloda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7062/7735/files/38650348651.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2431/8618/files/57411373833.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32150460784.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4583/8239/files/subebabotakim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7254/4150/files/product_assortment_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pepefawabibuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1771/5361/files/pikaxodoja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4705/9607/files/88067651870.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/mazofezixabojukumavowatij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9937/4233/files/gudetomotodefim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6585/1560/files/beautiful_quotes_in_tamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5216/3481/files/jezegirab.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000843c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x843C 2828 bytes
SHA-256: a17885b4fd577e0298a64705d5055d2ac7c2363fd7008e9cf236b3df412a17d8
font_01_sfnt_off00008e36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E36 5288 bytes
SHA-256: 08fcef00eee65e7150868e4b7daa9cfec9ea7d4d2a32fe54cb874612d7ef1520
font_02_sfnt_off0000a03e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA03E 10096 bytes
SHA-256: 4d2efe5f54911519b99e81a38afd2208bd255cd7fb7109f7510db5445432d5fc