Malicious PDF — malware analysis report

Static analysis result for SHA-256 950d712a3861750e…

MALICIOUS

PDF

45.0 KB Created: 2020-07-30 14:39:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5caf0699c2a1df6432e477a02a2404ab SHA-1: 8793ad0336deafe8ea7392951c0bddd6981a0eb4 SHA-256: 950d712a3861750e02c6b1b8f5742cb33e4e232ed94ff09753f871755f0f8a54
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a link farm designed to appear as educational material, specifically 'cbse class 10 sample paper 2020 english pdf'. The primary embedded URL, https://ttraff.cc/pify?keyword=cbse+class+10+sample+paper+2020+english+pdf, is identified as a malicious redirector. The document body is heavily obfuscated and contains no readable text, but the heuristic firings strongly indicate a lure to a malicious site. 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.cc/pify?keyword=cbse+class+10+sample+paper+2020+english+pdf In PDF document text
    • http://files.kingdomgraphxx.com/uploads/1/3/1/3/131398102/bb8d5dd0e4e.pdfIn PDF document text
    • http://files.dbfloristofhouston.com/uploads/1/3/1/3/131383743/a948753b79ce.pdfIn PDF document text
    • http://files.widebaydancesupplies.net/uploads/1/3/0/8/130874120/7138489.pdfIn PDF document text
    • http://files.widcombecraftfair.com/uploads/1/3/1/4/131406430/746220.pdfIn PDF document text
    • http://files.georgiatechmocktrial.com/uploads/1/3/1/4/131453784/razosajamewugu.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/1/0433/0687/7080/files/56317886700.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4647/8758/files/51747372253.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5720/8731/files/perevutoxomut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4615/1078/files/8214626479.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6374/6466/files/76103809173.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0151/1064/files/18403032933.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3127/3365/files/watupuvawazijujibuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5452/8677/files/48397846101.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4895/0170/files/wefog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9825/7048/files/33750759919.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2273/7830/files/fakemedumoxowexotasonem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2732/5343/files/lajodewufukewibiw.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 8

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_off00007253.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7253 5656 bytes
SHA-256: 675b936e4451cea87692f0a4ea2d295f5bd1d7bde7fff605f4d13865258d856e
font_01_sfnt_off0000854f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x854F 9720 bytes
SHA-256: 5c05ff57f2d245ac8196c1b6a3616e1306fa25b4cf6f9aff8362ba93a3a4940c

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