Malicious PDF — malware analysis report

Static analysis result for SHA-256 e221bbe2c2ae24f8…

MALICIOUS

PDF

47.1 KB Created: 2020-08-06 03:10:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9e276471651f7f2af43bb5a925ff7aaf SHA-1: cf18d4c5bcded008e749c51cb90984cc77800066 SHA-256: e221bbe2c2ae24f80d141846f0d3bfc9e69de2422d197dc85fc87b916f014d2c
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL, 'https://ttraff.ru/pify?keyword=c+programming+language+in+tamil+pdf', is designed to redirect users. The document body, though heavily obfuscated, contains references to this URL and other PDF links, suggesting a link farm or redirection scheme to distribute further malicious content.

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.ru/pify?keyword=c+programming+language+in+tamil+pdf In PDF document text
    • http://files.kristamasonyogafitness.com/uploads/1/3/1/6/131606289/7238120.pdfIn PDF document text
    • http://fugukome.customcoshirts.com/uploads/1/3/0/8/130813747/dae4088e318db37.pdfIn PDF document text
    • http://files.boiselawncare.net/uploads/1/3/2/7/132712093/5578319.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/1/0431/7354/4093/files/xiropitugasa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8298/1278/files/37396729448.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8180/1629/files/magic_workstation_crack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1887/8117/files/sumilu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4190/7110/files/98365034702.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0318/3258/files/62431919830.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1899/3320/files/mijesolodavozemusubalem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7837/5831/files/34467432864.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2977/3982/files/55340623329.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/50878135704.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1143/1838/files/31850487506.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/62894204366.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 7

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_off000076ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76EE 5088 bytes
SHA-256: db6da0463cb173d1b5a3e8785f3a21ab5dbcdeb5690932ed3f2ed33b6a177be6
font_01_sfnt_off00008826.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8826 11824 bytes
SHA-256: 183f0b2724b25136fe37dc371e5a99c867a1cda3f2e8636fe53362d7e7006e43

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