Malicious PDF — malware analysis report

Static analysis result for SHA-256 80aacfefd4d7bb64…

MALICIOUS

PDF

42.2 KB Created: 2020-08-18 22:59:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3f7362bd3f861e8f52ddd0ef38e580e8 SHA-1: 8f3bb337d4241e1d6d8e8327060b84b61486589d SHA-256: 80aacfefd4d7bb6478dc96eb519e85f8c731ba0763ea129c090044fb953524b5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many pointing to a redirector service identified as malicious. The document body, though partially corrupted, suggests a lure related to a 'training attestation template'. The presence of a malicious redirector and a large number of external links indicates an attempt to drive traffic to potentially harmful sites, likely for phishing or malware distribution.

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.ru/pify?keyword=attestation+de+formation+mod%25C3%25A8le+word In PDF document text
    • http://files.biauk.com/uploads/1/3/1/1/131164176/ramimimemexinop.pdfIn PDF document text
    • http://files.mynttl.com/uploads/1/3/1/8/131858540/vilipalufiwet.pdfIn PDF document text
    • http://files.rustedacresoaps.com/uploads/1/3/2/7/132741334/jexag.pdfIn PDF document text
    • http://roxumap.dramseyassociates.com/uploads/1/3/1/8/131871699/vukarekekuzerazib.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/1/0428/8725/0087/files/rugozajajiwolaberu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8933/0330/files/sdcopy._exe_download_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2353/1175/files/cellular_physiology_and_neurophysiology_2nd_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7272/4897/files/61907846381.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9633/2705/files/cellsentials_espaol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0966/2366/files/31000923036.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9971/6770/files/ferafoxeledo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1888/7068/files/fazafuwam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9121/3988/files/kelufijovopovukabelixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5030/1590/files/41842157489.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9072/2469/files/93191466131.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/1145/2576/files/chakram_movie_songs_free_320kbps.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6607/8870/files/18418399461.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 8

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_off000062aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62AA 5276 bytes
SHA-256: 6a0a788c1d86e4c97b0527455e68c5cc028a7c81bda7180ad851909bf526031a
font_01_sfnt_off0000744b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x744B 11704 bytes
SHA-256: 029a258f0149e81cab7c28a6fc3bf1441048721ddd210210307cdec83bc8b3fd

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