Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb402157099c654d…

MALICIOUS

PDF

45.0 KB Created: 2020-07-28 10:27:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e857f7ee86628cfacfb68f57271f0866 SHA-1: b83a6f4756112c9d3527465d05c9d053a95cece4 SHA-256: fb402157099c654dcd428a36ff2f4b5702010e872b6180aa8d8863de232eb25a
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external websites. One of these links, 'https://ttraff.cc/pify?keyword=anew+ultimate+supreme+advanced+performance+creme', is identified as a malicious redirector. The document body, though heavily obfuscated, appears to be a product description, suggesting a lure to entice users to click on the malicious links. The ML classifier 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.cc/pify?keyword=anew+ultimate+supreme+advanced+performance+creme In PDF document text
    • http://files.craigewanpg.club/uploads/1/3/0/9/130970016/zisitiwof.pdfIn PDF document text
    • http://files.theweeklybeaver.com/uploads/1/3/1/6/131637257/muwekifejerorisuvob.pdfIn PDF document text
    • http://files.publicgypsum.com/uploads/1/3/0/7/130739488/344643.pdfIn PDF document text
    • http://files.rockhamptonfolkfest.org.uk/uploads/1/3/0/9/130969300/guziluxavavopo-bapuzemaxok.pdfIn PDF document text
    • http://files.losaldrama.org/uploads/1/3/2/6/132682790/dugagabes-mokegapevujak.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/1/0437/3096/0536/files/nasebipasamerabekes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0342/9535/files/25412270578.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1015/4908/files/6932639591.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5293/1995/files/xedixuvitivoxetevikemu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tunamowari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2507/2282/files/xazurexusagiwaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8797/0975/files/lamabevu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8588/9689/files/talapulugomudu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6705/6028/files/wopexilujopaviwotom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6006/0567/files/lurepanubizu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1329/9620/files/wibejezavetixememedivil.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_off00006e77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E77 5324 bytes
SHA-256: 8a757caee632fa94006460c320286061cd3e28ef3f2d4257c5d1ff4f6eeb00cb
font_01_sfnt_off00008086.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8086 11132 bytes
SHA-256: a225b6962a186fcd9bf5e7c9835724d3d83ea67d46b46558f5de95c8f1299100