Malicious PDF — malware analysis report

Static analysis result for SHA-256 50b32aa7b384d2e7…

MALICIOUS

PDF

39.7 KB Created: 2020-08-05 05:28:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fe7fbb9f807b2da46e1bb461fd108357 SHA-1: 4e28fb8561f2718dc1cc8e769f3852e07398b9ef SHA-256: 50b32aa7b384d2e7c3b515e70285ec43381b03391056b0e3227c4d4ca8099088
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, disguised as an SBI bank exam syllabus. This indicates a social engineering lure to drive traffic to malicious infrastructure. The PDF also contains a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or SEO poisoning tactic to improve search engine visibility for malicious content. No scripts were extracted, but the presence of a malicious redirector and the document's deceptive content strongly suggest a phishing or malware distribution attempt.

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=sbi+bank+exam+syllabus+2020+pdf In PDF document text
    • http://files.ps177.com/uploads/1/3/1/3/131379111/7825439.pdfIn PDF document text
    • http://files.htinsuranceandrealty.com/uploads/1/3/0/8/130813796/d0444625d4c.pdfIn PDF document text
    • http://files.madelinemariebecker.com/uploads/1/3/1/4/131407214/3245187.pdfIn PDF document text
    • http://files.wills-estates.com/uploads/1/3/0/7/130740433/mixuporede.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/1/0431/7764/0093/files/21390946668.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9137/8854/files/70903890381.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3119/7856/files/korean_learning_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8068/6497/files/30972585921.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0594/9590/files/xibokexojuwabuperewirogog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5744/6050/files/44499224288.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1311/8872/files/16968310610.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8491/3563/files/nefebavonotejot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7180/7391/files/ruwafubipew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7432/9507/files/ginunijagosafuzozepema.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9370/4356/files/9479624082.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2040/3356/files/raruvozabajifonale.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 6

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_off00005be8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BE8 5840 bytes
SHA-256: ef544c0d0b71b9501a39ee36882aa2ce48c3118d9516ae8e739e84ef7a443071
font_01_sfnt_off00006fcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FCC 10088 bytes
SHA-256: 804a790905b55a102eefd16793e836b743875605705b4edc699e0e01dbd934c9

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