MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document contains numerous links designed to appear as legitimate resources, but ultimately redirects to a malicious domain. The primary redirector URL is https://ttraff.ru/pify?keyword=hackerrank+problems+and+solutions+pdf, which is flagged as malicious. The document body, though heavily obfuscated, contains references to this URL and other PDF links, suggesting a link farm or SEO poisoning tactic to lure victims. No scripts were extracted, but the presence of embedded URLs and the malicious redirector strongly indicate a phishing or scam attempt.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF 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.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF 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.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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=hackerrank+problems+and+solutions+pdf In PDF document text
- http://files.phoenixhypnobirthing.com/uploads/1/3/1/3/131379060/jijawori.pdfIn PDF document text
- http://files.alittleforkedup.ca/uploads/1/3/1/4/131406592/bozetakipomozoz.pdfIn PDF document text
- http://files.energylabnordhavn.com/uploads/1/3/1/3/131381363/bipabukonobeba_vodonavefi_bedex_zorene.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0430/2353/2195/files/94228939163.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4959/1718/files/how_to_create_a_local_server.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6443/4589/files/pagugerugosobekuvo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5199/7592/files/gregory_isaacs_night_nurse.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4222/5831/files/install_mongodb_ubuntu_15._10.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6424/5925/files/the_walking_dead_s07e02_torrent.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1459/4464/files/pamegosugozejikuzisekemep.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6868/5464/files/nokapewedafenawam.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4555/2290/files/dudinujiwazupufezaribax.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006914.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6914 | 5348 bytes |
SHA-256: 7123c8814306d14134f12963746e07af61482ea7032f81379a593db0e02ddc7d |
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font_01_sfnt_off00007b16.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B16 | 10352 bytes |
SHA-256: 34a377f5afda4ab605901993bb1a3a9329c60db7e8c34ee4dccc9bb4dcae0a22 |
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font_02_sfnt_off00009e7b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9E7B | 16312 bytes |
SHA-256: 975089639afea594160f6daa1ae948ffc4125994d61a9fd32dce02580f7b6b15 |
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font_03_sfnt_off0000b406.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB406 | 4324 bytes |
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2 |
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