Malicious PDF — malware analysis report

Static analysis result for SHA-256 f94c0ff28da11df8…

MALICIOUS

PDF

42.7 KB Created: 2020-08-09 06:43:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3bf497892d1ec2ae7dfed881a076d6e5 SHA-1: 372a5a69bbad91bfe64a20f98feefcba9025103e SHA-256: f94c0ff28da11df85e0c215861f8c842d43f642133487e43efa7d4e4c27b58be
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, includes text related to financial administration and the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of a link farm further indicates malicious intent.

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=administracion+financiera+internacional+madura+pdf In PDF document text
    • http://files.alexandramcintoshlaw.com/uploads/1/3/1/3/131379594/203508.pdfIn PDF document text
    • http://titozed.smartfirstaidcprtraining.com/uploads/1/3/2/7/132712615/vufiwirilovofiz-pomisu-zumejivunenig-sojipot.pdfIn PDF document text
    • http://files.marcdurand.net/uploads/1/3/1/3/131382032/e63f16f442ec032.pdfIn PDF document text
    • http://files.kaconsulting.org/uploads/1/3/0/7/130775366/rulimal-funesawafonam-tulozizaxakagu-tafilegejanidu.pdfIn PDF document text
    • http://files.democraticcoalition.org/uploads/1/3/1/4/131437689/fabigo-legajozos.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/1/0431/2868/4701/files/78285346061.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5650/5756/files/komoxubuwuruwox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1206/3391/files/gosaxopagipatezezubi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2778/3080/files/robifodoxuzoduzejurazifed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/2405/1358/files/whois_godaddy_com.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0490/2051/files/omni_disk_sweeper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7312/6052/files/46745688971.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1067/9203/files/affairscloud_weekly_september.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7227/5103/files/3983770781.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0654/7352/files/22878992818.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3029/9292/files/vijowinil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1638/0831/files/94837498429.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_off000065a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65A9 5288 bytes
SHA-256: 23349700d9c0ef23d76b6da1c5852c50383fa3854e0cb057abf88abc5d480fab
font_01_sfnt_off00007793.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7793 11052 bytes
SHA-256: cb2c68d3d8eb0d136c95f3447708496669ea9f33ae000161e4fc3f89b02e44eb

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