Malicious PDF — malware analysis report

Static analysis result for SHA-256 8aecc0460e8c8932…

MALICIOUS

PDF

37.1 KB Created: 2020-08-19 14:26:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6fc09d0ee320d4a7716f131a79c621a8 SHA-1: fe19cf088137c4142e0ccae9bd4aa9d6656aa466 SHA-256: 8aecc0460e8c89326d256156c5d9ff70271f609e72525ee067dc36fb35fa24c8
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to mimic search engine results, directing users to a malicious redirector at 'https://ttraff.com/pify?keyword=greenside+primary+school+ofsted+report'. This suggests a phishing or credential harvesting campaign. The document body, though heavily obfuscated, contains text related to an 'Ofsted report' and the authoring application 'wkhtmltopdf', reinforcing the lure. No scripts were extracted from this sample.

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=greenside+primary+school+ofsted+report In PDF document text
    • http://files.thenutritionists.ca/uploads/1/3/0/7/130775379/a1b2bf9b5.pdfIn PDF document text
    • http://files.imajicatheatrecompany.co.uk/uploads/1/3/0/7/130775543/sapidovomoxixop-mizuxa-rorekineluwukim-laguwa.pdfIn PDF document text
    • http://files.wacc.co.nz/uploads/1/3/1/4/131408741/kebopidonetip_wurirewem.pdfIn PDF document text
    • http://files.pack23scouts.com/uploads/1/3/1/3/131397973/ratowibur.pdfIn PDF document text
    • http://files.joymcdanieldance.net/uploads/1/3/1/3/131379443/kitajanaz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3519/6568/files/1478173478.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9476/1877/files/7789513209.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3330/3976/files/gisiwovo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6022/3382/files/84667312547.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8595/3192/files/dharmayoddha_kalki_avatar_of_vishnu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kamunikizesow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1300/5724/files/27775684099.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2688/9369/files/52927518648.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7963/1012/files/22254238704.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8761/8463/files/daxipu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3883/3816/files/nelixelopakinemugajude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9439/2485/files/raturibibufofoge.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000046ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46EE 5316 bytes
SHA-256: f5fc83d3747800bc39aeb698ba50ba10b6e64423b4bf578aff248d668deb50f0
font_01_sfnt_off000058cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58CF 9492 bytes
SHA-256: 242c8cd749550d649b7925276db39402c8d65185d7bbfd7ed61d45f1bacfadae
font_02_sfnt_off00007937.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7937 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3