MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 Malicious Link
T1059.001 PowerShell
The PDF file contains a large number of embedded links, identified as a 'PDF SEO Link Farm'. One of these links, 'https://ttraff.ru/pify?keyword=tinkers+construct+github', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains references to URLs and appears to be a lure. No scripts were extracted, but the primary malicious activity observed is the redirection to a known malicious URL.
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=tinkers+construct+github In PDF document text
- http://files.ubeucustomcreations.com/uploads/1/3/1/0/131070762/287628.pdfIn PDF document text
- http://files.creatingtheconditionsfortransformation.com/uploads/1/3/2/6/132683142/kumigene-migitabo.pdfIn PDF document text
- http://files.celebrityartbypam.com/uploads/1/3/1/6/131606672/kozezanibowowos_wowazetas_wisil_rusetazifiv.pdfIn PDF document text
- http://files.filipinocursillosf.org/uploads/1/3/1/3/131378990/sofalevabe.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/1/0432/6440/9755/files/52948612955.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kufotiniponekurek.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xidab.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9749/8535/files/keturapavexureritexobudes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9102/4277/files/5910064015.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1479/9012/files/69056083873.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4017/8333/files/rasedinizi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/3986/4485/files/wifana.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1309/5073/files/zojutela.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3760/5544/files/vuninopabu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8343/2096/files/pimuzefitujatuni.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3266/6524/files/87556519796.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
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000656c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x656C | 4856 bytes |
SHA-256: b43ac2569ba61d2d5a35470a8465d13f29b218e8b4c63a3010b1fed59618a360 |
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font_01_sfnt_off000075e4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75E4 | 10960 bytes |
SHA-256: 136625ad3d11f0daab51b1eabe552564615a0cd45bf4a491fbfba16e4a43d7df |
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font_02_sfnt_off00009b2f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9B2F | 4324 bytes |
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2 |
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