Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7639dce445ea4a2…

MALICIOUS

PDF

41.1 KB Created: 2020-08-26 19:39:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a0aa400b8a50d349c4788812bbcb771c SHA-1: 760d16e53a2a4b4f42471dff1aa35d3241737aa5 SHA-256: b7639dce445ea4a263e751aebc65394750578e9e494276c4eb18409c8d36b339
194 Risk Score

Malware Insights

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

The PDF contains a prominent link disguised as a movie download, which is a common social engineering tactic. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms this link points to known malicious infrastructure. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, many hosted on Shopify, likely to obscure the malicious destination. The ML_NYX_PDF_MALICIOUS score further supports the malicious nature of the document.

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.me/pify?keyword=doctor+strange+full+movie+in+hindi+h In PDF document text
    • http://files.osweetnature.com/uploads/1/3/1/3/131398322/fe87a413232382.pdfIn PDF document text
    • http://rurab.erikahope.com/uploads/1/3/0/7/130775734/vijomapuzo-warad.pdfIn PDF document text
    • http://files.lemonbalmchronicles.com/uploads/1/3/0/7/130775373/rubexibigoxames-xejatom.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/1/0431/7016/8986/files/namevobavop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2401/5783/files/nogekufoxup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3714/7811/files/22853147384.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0982/6213/files/tikaxatikatepiropo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5732/2903/files/fisozowuladuxewosufoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/10588857949.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5656/1318/files/cerebral_arteriovenous_malformations_veins.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9866/9220/files/sony_dream_machine_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9439/2485/files/suzuki_budismo_zen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6163/9318/files/65934232845.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 4

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_off000062cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62CF 5492 bytes
SHA-256: e05f57e5e060e57d65ee576001312c74edd9798640a0a46f2ee79598da40905c
font_01_sfnt_off00007557.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7557 10060 bytes
SHA-256: 36d171ae1ac2ed312c72747e98273a680f83495b3a6b9a2dd71bfafb98fc1b82

Open this report in the interactive analyzer, or submit your own file for analysis.