Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd259afca62cfdf…

MALICIOUS

PDF

45.6 KB Created: 2020-08-18 13:23:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c310b5afea4f96f987da837184666633 SHA-1: c35b0438b0c7a49215e4ce9225ec1fad7d2704a1 SHA-256: 3dd259afca62cfdf4a7206a10036c44f36e619d1e21600c9d5cef30193219916
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic firing indicates a malicious redirector link, specifically 'https://ttraff.com/pify?keyword=3d+daz+model+free', which is likely used to lure victims into downloading further malware. The document body, though heavily obfuscated, contains references to '3d daz model free' and the malicious URL, reinforcing the social engineering pretext. The ML classifier also strongly flagged this PDF as malicious.

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=3d+daz+model+free In PDF document text
    • http://luzasuzop.jdbctax.com/uploads/1/3/1/8/131857243/jodejoludu.pdfIn PDF document text
    • http://komugo.shoprosethorn.com/uploads/1/3/1/8/131871825/lamezifon_povagerewinuri.pdfIn PDF document text
    • http://putoke.indiecounterculture.com/uploads/1/3/1/1/131164250/7056968.pdfIn PDF document text
    • http://files.jonbonnerdesigns.com/uploads/1/3/1/3/131378950/manezizepivasus_gusalowiwivuda_rirakaluragixov_balimimokovor.pdfIn PDF document text
    • http://files.luxuwrist.com/uploads/1/3/0/8/130814475/dozin.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/1/0431/5666/8565/files/nepevodewe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9145/1303/files/16280713162.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3702/4668/files/8812297850.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7307/7415/files/xujad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3387/8940/files/wamolaxinusikuzijurixoda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4329/8207/files/csgo_trade_ups.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9137/6794/files/fovamufuwofigejofovuxujet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1650/0886/files/algebra_1_math_problems_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1895/2610/files/61466295405.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6512/0670/files/catia_v5_part_assembly_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3971/1655/files/jimulefurafarafiwixukixa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6335/3244/files/forensic_anthropology_training_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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000598a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x598A 4992 bytes
SHA-256: ae2fe168ef00375d175b1121876dd75c54471a3e1dd560f8cf9eb26ecf7630a6
font_01_sfnt_off00006a77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A77 12956 bytes
SHA-256: 8eab7dd5b08c15b347695bacf68589ee7f8ef3c644a54da3ce4890e99e1c22c0
font_02_sfnt_off0000946f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x946F 16132 bytes
SHA-256: 43e84046d57c5d8edad47de9228ce36feb53c5e515436c294a71041590f3a3a6