Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c2b4c946de59cef…

MALICIOUS

PDF

56.3 KB Created: 2020-08-10 21:20:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b299a911d31992255a4fb384a2da30f0 SHA-1: 19bb07b23f185306d8acb8283d5ebb2dd895e04c SHA-256: 4c2b4c946de59cef4839da6b3ec6c10a2b651778f1af2b6696a4fb8737c5f9fc
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass of external links, many of which point to a redirector service. The primary malicious link identified is https://ttraff.cc/pify?keyword=all+dog+breeds+in+the+world+with+pictures+pdf, which is known to lead to malicious infrastructure. The document body, though heavily obfuscated, contains this URL and other Shopify-hosted PDF links, suggesting a link farm or redirection tactic to deliver a payload. The ML classifier strongly supports the malicious nature of this PDF.

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.cc/pify?keyword=all+dog+breeds+in+the+world+with+pictures+pdf In PDF document text
    • http://files.anniemeekmontgomery.com/uploads/1/3/2/6/132695633/perutimofubadomimino.pdfIn PDF document text
    • http://pesore.vincentrussodesigns.com/uploads/1/3/0/8/130814328/ruxobijaja-judokanime-wexuv.pdfIn PDF document text
    • http://files.andcreation.ch/uploads/1/3/0/7/130776101/donimijosolisaj.pdfIn PDF document text
    • http://files.keepcalmwaxon.com/uploads/1/3/1/1/131164538/famaxevawagurixu.pdfIn PDF document text
    • http://files.alexbowlerevangelism.com/uploads/1/3/1/6/131607075/redefivevakototu.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/1/0433/0687/7080/files/neretidesalefadim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0101/1614/files/44296835782.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4624/8358/files/pixijotenerigoxurumem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0962/2687/files/32375411.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5819/1768/files/70932842100.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0082/9848/files/46118507899.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5519/4011/files/43894911753.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6293/5200/files/all_he_ever_desired_shannon_stacey.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8475/0743/files/70026529279.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1679/8883/files/23813921905.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2638/9912/files/novubadoso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1017/8717/files/11503872565.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vujunuvitiwowus.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009e77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E77 5428 bytes
SHA-256: 42d5a65a550277952e6a3d3e2b0ee981dc0376eb4f8040c796084421edf980bd
font_01_sfnt_off0000b0fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB0FC 10152 bytes
SHA-256: 405ff1d962f32f5a92f60ed2dd18aa92daba3431afbb809a90be3ca94ad93a6a