Malicious PDF — malware analysis report

Static analysis result for SHA-256 e99e70acbbe68875…

MALICIOUS

PDF

41.5 KB Created: 2020-08-10 21:59:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8e275d1ee3e48d35ceb73ff436759f66 SHA-1: 97a9b2acf661d0153f45fa734eea6c1a26ab774e SHA-256: e99e70acbbe68875badfab72603b8176543f3245801e6d8c85f48a493a2dffdb
194 Risk Score

Malware Insights

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

The PDF contains numerous links, with a primary link pointing to a known malicious redirector at 'https://ttraff.com/pify?keyword=cahier+de+vacances+pdf+cm1+cm2'. This suggests a phishing or scam attempt, leveraging the appearance of educational content to entice clicks. The presence of a link farm heuristic further supports the malicious intent of distributing malicious links.

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=cahier+de+vacances+pdf+cm1+cm2 In PDF document text
    • http://files.speechhighway.com/uploads/1/3/1/4/131453219/xebukate_firek_gesozixewetif_sobit.pdfIn PDF document text
    • http://files.g1muzic.com/uploads/1/3/1/4/131454190/164638.pdfIn PDF document text
    • http://dupupani.valeriesplayhouse.com/uploads/1/3/1/6/131606490/zilatur_viwaxazetuk.pdfIn PDF document text
    • http://files.mirrormath.org/uploads/1/3/1/1/131164153/mofaz.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/1/0434/8762/5369/files/pearl_necklace_meme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6830/9152/files/pokemon_yellow_gameshark_codes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5762/4726/files/14959772232.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0083/9842/files/vbspu._ac._in_result_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5394/8836/files/53672517598.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7741/0724/files/72065702046.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3815/4650/files/46334005380.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5824/9380/files/dekapawuke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7247/1718/files/dixewuzijisopusivobape.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8620/9439/files/gagipe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6162/2437/files/les_infortunes_de_la_belle_au_bois_dormant_ekladata.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_off00005f9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F9F 5512 bytes
SHA-256: 7dcf574f32904c971932c7e93eb4ee999445f36b79caa71ef04ef7daebf8a9d7
font_01_sfnt_off00007244.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7244 11764 bytes
SHA-256: ea2694a2844c8bb5ee56dde781747486f9d0a1b23b05d2962165083847d136a3

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