Malicious PDF — malware analysis report

Static analysis result for SHA-256 734c8182a0b6055a…

MALICIOUS

PDF

45.3 KB Created: 2020-08-18 16:54:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d9395f49b5b649f2fa182f72f30213de SHA-1: 5bc002aea0725f1f3f32748f819dd7c2fd65c613 SHA-256: 734c8182a0b6055adacfb6d4c7a2995bf5c5bbf97661318414b10fa3ec20dfd8
202 Risk Score

Malware Insights

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

The PDF contains embedded links and text that mimic a download lure for 'ctet answer key paper 1 set l'. These links redirect to a known malicious domain (ttraff.com), indicating a phishing or malware distribution attempt. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a phishing or redirection attack.

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=ctet+answer+key+paper+1+set+l In PDF document text
    • http://files.triggerindustriesinc.com/uploads/1/3/1/4/131438639/8070246.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/1/0434/0681/9493/files/todelesesuralu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9605/3662/files/rearrange_pages_in_adobe_reader_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6048/5541/files/22719275.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9558/8002/files/legusuvavaneferek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2728/1558/files/bridge_deck_analysis_second_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2353/1158/files/2080_super_benchmark.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5698/8317/files/1120219583.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5881/5398/files/how_automatic_transfer_switch_works.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1573/9304/files/useful_adjectives_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9068/2783/files/charlemagne_bold_font_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0697/5382/files/godiwuxutazodisizago.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1859/9075/files/52162605064.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1114/4861/files/mawobokitux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2670/0696/files/bosibigabulodezamilobefe.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 1

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_off00007152.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7152 5028 bytes
SHA-256: f19868abebbb262e7681f7a57d187d413fb09ffee5ebf5c94b5f843a6c0e4e2f
font_01_sfnt_off00008295.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8295 11472 bytes
SHA-256: bc4f11c078e19ca8c5b937d20ee789ee62048c83a187c834529c33fa4b807b6a

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