Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a069ffa29fc70b0…

MALICIOUS

PDF

42.0 KB Created: 2020-08-18 21:24:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e76561c24dc1fc40e5590ae76c8337ff SHA-1: 503f67930e493880740d6b5c49aaf2f41181126f SHA-256: 5a069ffa29fc70b096f5bdc12c6fe88493a34eda2cde4fd4d515bbf56f3b329a
202 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to 'cbse board exam date sheet 12th class' and the malicious URL, suggesting a lure to trick users into clicking the link. The presence of a 'visual download button' heuristic further supports the deceptive nature of the document. The file is identified as a malicious redirector, likely aiming to lead users to further malicious content.

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=cbse+board+exam+date+sheet+12th+class In PDF document text
    • http://saxugaz.wordbywordjourneys.org/uploads/1/3/1/3/131384401/2180133.pdfIn PDF document text
    • http://zavepew.otticacastelli.com/uploads/1/3/0/7/130739922/e7bc23fa.pdfIn PDF document text
    • http://levegove.marfastudioarts.org/uploads/1/3/0/7/130775045/lazisox-kupizifivowa-bipewutet.pdfIn PDF document text
    • http://files.zenbeautychester.com/uploads/1/3/1/4/131437676/4082138.pdfIn PDF document text
    • http://files.stuff-it.blog/uploads/1/3/0/7/130775196/3857639.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/1/0428/3075/8054/files/zazofarodurivejovalewonot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5222/1091/files/39462174561.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4537/9478/files/15234238882.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4993/4231/files/namux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7937/6798/files/here_i_am_lord_piano_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7121/6542/files/datilekatojunekuwilosefum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2093/5590/files/jinekizusologujom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6084/7004/files/biblia_romana_ortodoxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0544/2209/files/92829405580.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 3

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_off00006538.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6538 5476 bytes
SHA-256: a2ba4966fdccba7559039a75a4fb6cf0936110f0c43df2c3fdb065590867df91
font_01_sfnt_off000077b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77B2 10288 bytes
SHA-256: 14409a03c1332fd25259d8729d81a0e1e35664fb4e654e2d91aab06906692862

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