Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa83ceea82749b57…

MALICIOUS

PDF

34.8 KB Created: 2020-08-24 04:04:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5db513a2085e7bb1b3014e5dbb42a4dd SHA-1: a958a4ded69ac32af74c12bef65736494486fb9d SHA-256: aa83ceea82749b575172fec36807e68a98ed970901a568cfb602b66ea08789e9
202 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a download button, which is a common lure for phishing or malware delivery. The document body contains text related to 'Ashford oaks primary school uniform' and numerous embedded URLs, including a primary malicious redirector at ttraff.com. The PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM heuristics confirm the malicious nature of the links.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=ashford+oaks+primary+school+uniform In PDF document text
    • http://tosod.equinewellnessservices.com/uploads/1/3/1/1/131164250/7436592.pdfIn PDF document text
    • http://files.petalsofme.co.uk/uploads/1/3/1/6/131606502/vigutu-jogujirujimute.pdfIn PDF document text
    • http://files.live-for.org/uploads/1/3/0/9/130969683/fawusip_bokubazifusetok.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/1/0428/0595/2671/files/51248064838.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2212/1122/files/nitusunurasavisasusunoke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6668/7642/files/solving_equations_and_inequalities_quiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3508/0342/files/43593392194.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9752/2329/files/jaxurapumoxajoxijila.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8349/7623/files/ias_interview_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5915/8940/files/biblia_cristiana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0457/8118/8774/files/71707400890.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6377/0274/files/53391216395.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6806/2872/files/37170064326.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9671/1069/files/kimis.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_off000048b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48B1 5552 bytes
SHA-256: cc2730d7b8b59a682e3efb4f5179bca7ab0b9c787b829aa4001e43e805a101c9
font_01_sfnt_off00005b7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B7C 10148 bytes
SHA-256: 176b72da1ca50f4503996ebe9b19ba3c002f1c7f1bc4ad7adcfaa71d863cfd19

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