Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b32c349bf9b07e6…

MALICIOUS

PDF

35.9 KB Created: 2020-08-09 10:25:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3152fb12cae13835817e613b9315ae66 SHA-1: 86b5e8ac3c9d6e53791720ac90ba0ad0d9e3faa2 SHA-256: 2b32c349bf9b07e6298af439fe6bf65e511d183f5aab42b2e5023afd814f8a1b
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, including one that redirects to malicious infrastructure. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags the URL https://ttraff.cc/pify?keyword=mathematical+analysis+by+malik+and+arora+2nd+edition+pdf. The document body, though heavily obfuscated, also contains this URL, suggesting a lure to download a document. The ML classifier also strongly indicated maliciousness.

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=mathematical+analysis+by+malik+and+arora+2nd+edition+pdf In PDF document text
    • http://files.labeldogshippingsupplies.com/uploads/1/3/0/8/130873728/8847f54207.pdfIn PDF document text
    • http://files.omanroadshow.com/uploads/1/3/0/7/130776182/da712092f62c6.pdfIn PDF document text
    • http://pivir.powerproductions.ca/uploads/1/3/0/7/130739704/bikixuwuki-kurovaxedon.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/1/0429/4275/9071/files/vipirulumumo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2807/0052/files/lebamuguzuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0600/0282/files/roadside_design_guide_4th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6833/2959/files/kezabugize.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3970/9605/files/biblia_catolica_en_ingles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8237/5577/files/77967707850.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1353/6925/files/45345160309.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6703/8109/files/59821025877.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4252/0739/files/18613153539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dijev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7196/2265/files/software_engineering.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_off00004c2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C2B 5840 bytes
SHA-256: 7192757f39ca659c06af70907a95d7b9725c85eff9be6109d77e2d89063e2099
font_01_sfnt_off00005ff1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FF1 10096 bytes
SHA-256: 081e4eabe4154457ca52b2f78e1ce22a33f8c2f9c70eda4a1169521df1f2e059

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