MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=induction+motor+control+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify, but one on 'http://files.krisyforce.com/uploads/1/3/1/3/131384025/2944257.pdf' which is flagged as unknown reputation. The ML classifier strongly supports the malicious nature of this PDF.
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=induction+motor+control+pdf In PDF document text
- http://files.krisyforce.com/uploads/1/3/1/3/131384025/2944257.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/1/0429/8424/3351/files/1282656973.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6330/3575/files/cantigas_de_santa_maria_guitar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5933/9679/files/chroma_key_footage_free.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5570/1398/files/lumezovakex.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9925/1093/files/makazi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5108/2143/files/33945414262.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5618/4992/files/jekorerotubavanuzididu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5537/3720/files/54869639466.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8544/7833/files/delis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7663/2214/files/falixasugojux.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9168/1699/files/pilesisido.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_off0000d63f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD63F | 4612 bytes |
SHA-256: 9848c4f4280c2de716305f3138afc8d23c1cb61d8edcab586e3cc01fa660828b |
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font_01_sfnt_off0000e5c0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5C0 | 16964 bytes |
SHA-256: da4c9a07a5e02fe66c83ba46b5adace386f8b50b646f83be4098742053e67c45 |
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font_02_sfnt_off00011b09.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B09 | 16212 bytes |
SHA-256: bd0d8fc809c671ed665b9c14f7a517f3a9c47c82e6281d758a1e0018a6368dd5 |
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font_03_sfnt_off00013031.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13031 | 4324 bytes |
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2 |
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