MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file was flagged by multiple critical heuristics for containing a malicious redirector link and a large link farm. The embedded URL 'https://ttraff.ru/pify?keyword=pthread+condition+variable' is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to this URL, suggesting it is the primary lure. The presence of numerous links, many hosted on Shopify, indicates a broad attempt to distribute malicious content.
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=pthread+condition+variable In PDF document text
- http://files.parentchildclinic.com/uploads/1/3/0/8/130813314/xidefiri-sodano-dufiporagaf-wugokupumem.pdfIn PDF document text
- http://files.rev-pile.com/uploads/1/3/0/7/130739648/bikuka.pdfIn PDF document text
- http://files.miekemanschot.com/uploads/1/3/1/4/131483305/5351439.pdfIn PDF document text
- http://files.musictheoryhelper.com/uploads/1/3/2/6/132680955/1123819.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/1/0429/5832/3865/files/tomupovajej.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0638/5558/files/gibafizaxuzezeropujigubu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1104/7575/files/xubixebozufuxubur.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0428/7383/files/vobuniwimevu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3331/3958/files/dufigokijabe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0730/2037/files/warriors_of_chaos_army_book.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4826/4089/files/jamiziwikobogixaxijugi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4302/7104/files/sepasavujefuz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7702/5446/files/raligewitu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2135/3635/files/xanodiwabokovabusepabuz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4988/6620/files/gogelo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9320/5916/files/wametaposi.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_off00009b69.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9B69 | 4840 bytes |
SHA-256: 8194667b09395098ad5879d69496fa19357390ce17de53e7ea846c31b27a1560 |
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font_01_sfnt_off0000abc3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xABC3 | 15600 bytes |
SHA-256: 32c7950a91a3cf780730816b8c0c8a34836330b1a910928c37d81fcaa5ab0f4d |
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font_02_sfnt_off0000dc98.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC98 | 4324 bytes |
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176 |
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