Malicious PDF — malware analysis report

Static analysis result for SHA-256 8892067b1647806f…

MALICIOUS

PDF

67.2 KB Created: 2020-08-13 21:58:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a3684fc687ce92a40de7b56b6fc925ca SHA-1: 114402b8540b16619c310a5f21787df3d780fa29 SHA-256: 8892067b1647806f63483d417dbdc20a9f2ae40f4be675232de692d3a84a0001
194 Risk Score

Malware Insights

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

This PDF document contains numerous embedded links, many of which point to a malicious redirector service. The document body and embedded links suggest a lure related to educational resources, likely intended to trick users into downloading further malicious content. The ML classifier strongly indicates maliciousness, and the presence of redirector links confirms a malicious intent to funnel users to harmful sites.

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=ecole+centrale+paris+formation+continue In PDF document text
    • http://korivego.blindandbeyondradioshow.org/uploads/1/3/1/3/131380042/fivaxonuri_wugome_napesa_jolifuwelo.pdfIn PDF document text
    • http://files.bombni.com/uploads/1/3/0/7/130775520/6994652.pdfIn PDF document text
    • http://files.jumaephotostudio.com/uploads/1/3/1/8/131871494/sewalokasubolon-gifare-woxuduvu.pdfIn PDF document text
    • http://files.lifesrenderingsart.com/uploads/1/3/0/8/130815124/37d4b3e04e6e7.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/1/0434/9673/4885/files/26928752234.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3383/7219/files/96334026586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5061/4429/files/jafopamilinojejorifuref.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1022/0447/files/matlab_image_processing_toolbox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1548/8163/files/learning_php_the_hard_way.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8632/9509/files/arduino_morse_code.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0009/4112/files/bejofafopomego.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2160/6817/files/vugazopevofuropojike.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0632/8995/files/37490466841.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8646/2628/files/satyanarayana_biochemistry_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4532/8808/files/wimulujuloborez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9802/1793/files/dogumiranevesomog.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 7

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_off0000c15a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC15A 5120 bytes
SHA-256: 6c52663fa57071f04e818700047a9a5791db5d31c309d079e682f5f6c8dcc647
font_01_sfnt_off0000d2a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2A6 13812 bytes
SHA-256: d64816700f62d26547e3256574903841c2c71850af87b172a0622c58d0e4454b

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