Malicious PDF — malware analysis report

Static analysis result for SHA-256 191717f23c24efa0…

MALICIOUS

PDF

46.6 KB Created: 2020-07-28 10:06:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 28226a6d83a771af7d54c6653c6fc1ea SHA-1: db9b4387fbc06679250c6a81bca21c592eec58f6 SHA-256: 191717f23c24efa090e19a9c317c64d2cef7af690284d524f3e489afd2a67153
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a mass external link farm, with a primary link pointing to a known malicious redirector. The document body, though heavily obfuscated, suggests a topic related to reporting, likely a lure. The ML classifier strongly indicated maliciousness. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to a phishing page or malware download.

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=relation+between+integrated+reporting+and+sustainability+reporting In PDF document text
    • http://files.alkalinemetal.com/uploads/1/3/1/4/131437275/1403145.pdfIn PDF document text
    • http://files.newwavegymnastics.com/uploads/1/3/1/6/131636712/9667781.pdfIn PDF document text
    • http://files.zevkali.com/uploads/1/3/1/0/131070230/murezize_jojifoliwona.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/1/0433/7860/6229/files/91129054362.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5080/3099/files/kirisizavefi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1517/5317/files/19801828130.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6048/5541/files/34315234492.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4523/9456/files/14026177277.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5432/6179/files/taveravuxurafolu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5244/9444/files/67714521522.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3874/4476/files/joxoxenekepiboxixizes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7496/8986/files/56474058746.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7723/7917/files/muvusi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6125/5073/files/24731947238.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3694/2234/files/retoxejudozexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8976/5279/files/kabobufasixivanonevajep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8077/7882/files/97651415907.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 6

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_off00007607.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7607 5348 bytes
SHA-256: 7ff89742c85348ae2af397fa6f7477685b07b26542c148a80230a8d8d8b367ba
font_01_sfnt_off00008852.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8852 10488 bytes
SHA-256: 5730e0ab3c5eec04b2e8f186d30ca474c7e98289cfb8e7ccd40dd03a58567b5e

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