Malicious PDF — malware analysis report

Static analysis result for SHA-256 b79791fb633d10d5…

MALICIOUS

PDF

47.0 KB Created: 2020-08-13 07:25:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c80aef4ea2d461db595788e7db74684a SHA-1: 08555b6865a81450fd2817af641c598b72826626 SHA-256: b79791fb633d10d5c77570e8e316cb5ff3499fdfbd0e65214f0057a7f074bf71
194 Risk Score

Malware Insights

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

The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure via the URL 'https://ttraff.com/pify?keyword=estudio+agrologico+v+region+pdf'. Additionally, it contains a large number of embedded links, many pointing to Shopify-hosted PDFs, indicating a potential link farm or SEO manipulation strategy. The ML classifier also strongly indicated maliciousness.

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=estudio+agrologico+v+region+pdf In PDF document text
    • http://files.comechatwidmi.tv/uploads/1/3/1/6/131606390/tisitox_jifudopibi.pdfIn PDF document text
    • http://tirugeg.westchestercounties.com/uploads/1/3/1/1/131164250/ximukiwafazavodez.pdfIn PDF document text
    • http://files.tucsonoldpueblodar.org/uploads/1/3/2/6/132681488/f1096.pdfIn PDF document text
    • http://files.myfriendsimonee.com/uploads/1/3/0/8/130874189/kevasopaj_kiduxurodudi.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/1/0434/0377/2056/files/nosuvane.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7610/5893/files/fajomanijomatobupegimak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0318/2231/files/naxerijopasasumom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8943/6580/files/bikodenumake.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1755/2543/files/98758746628.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5365/9798/files/vetipakoxofalipola.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5104/9370/files/calicivirus_felino_patogenia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6332/0469/files/raburidivuvulifopekufakom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3156/8277/files/articulacion_hombro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9860/9566/files/small_basic_programming.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4979/4213/files/core_stone_embers.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_off0000785d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x785D 5340 bytes
SHA-256: 84d11c505cda97c2f6c259aa12a1ddafeffccdff508c4963b97b7b99abf36aa3
font_01_sfnt_off00008aa2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AA2 10872 bytes
SHA-256: 8294bf732cfe2457183caa7758f4ab127654ca95fdd59c30f69431b1726d4345

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