Malicious PDF — malware analysis report

Static analysis result for SHA-256 867dbf55ad4c3bfe…

MALICIOUS

PDF

46.6 KB Created: 2020-08-10 08:43:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 120b293eef660c001e4635da9e53ec6e SHA-1: 75d3072949e25e092e71d1bb3244d90290dccbcc SHA-256: 867dbf55ad4c3bfe98d6fae459581bb01f6bc50694297e6448097952cee1bb9f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links, many pointing to Shopify domains, but one specific URL, https://ttraff.com/pify?keyword=adirondack+chair+plans+pdf+download, is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting a lure for users to download potentially malicious content. The ML classifier strongly supports the malicious verdict.

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=adirondack+chair+plans+pdf+download In PDF document text
    • http://files.readnd.org/uploads/1/3/2/7/132740502/savejefoxevaw.pdfIn PDF document text
    • http://files.averyandersongourdart.com/uploads/1/3/0/7/130776266/juninesudi.pdfIn PDF document text
    • http://files.bluemountainmusicstudio.com/uploads/1/3/2/6/132696414/tozakugomewufi.pdfIn PDF document text
    • http://files.mrgutierrez.net/uploads/1/3/0/8/130814492/6077009.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/1/0431/5290/0250/files/variable_valve_timing_intelligent_system.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7841/0655/files/nofuwopo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7070/8125/files/biliary_tract_anatomy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0614/8255/files/13549849550.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6638/3768/files/wulajebozidusadoko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/1743/3251/files/edema_cerebral_definicion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4375/7985/files/miluwumosugot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9432/6939/files/2706916525.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3308/4575/files/xurubaza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4667/4336/files/fundamentals_of_engineering_economics_second_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6674/4220/files/etina_pro_ivot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/80298965366.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6181/4172/files/21164807651.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3998/8648/files/juvoliguwodibibedalo.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
🗂 Part of campaign: bluelotusmehndi.com 3 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000786d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x786D 5388 bytes
SHA-256: 473a841f3b86524a98c9c231d57cdb1a67a55f3807069ee27f69654c006422b5
font_01_sfnt_off00008acf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8ACF 10088 bytes
SHA-256: 61e3191d9da94f1c5f67c223fe0e606d6521bcf3a3e05ae63169f7dbe80dc5bb