MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains embedded links that redirect to malicious infrastructure, specifically identified as a redirector at 'https://ttraff.ru/pify?keyword=knife+fighting+techniques'. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to lure users to a malicious site under the guise of information about knife fighting. The ML classifier strongly indicates maliciousness, and the presence of numerous external links points to a link farm or phishing 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=knife+fighting+techniques In PDF document text
- http://fafux.letsrockandrollandchangetheworld.org/uploads/1/3/1/3/131398020/9778624.pdfIn PDF document text
- http://files.homesimpledenver.com/uploads/1/3/1/0/131070918/wifegugewixogu_nabawe_divojijarib_bafufad.pdfIn PDF document text
- http://files.ndpharmabiotech.net/uploads/1/3/2/7/132712413/7424128.pdfIn PDF document text
- http://files.klodtap.com/uploads/1/3/0/7/130775635/6b6a5329d5c.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/1/0431/0990/8637/files/559923280.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0460/8144/1956/files/.pdf_7c2f992f-86f0-400c-bce3-842e4bc12597In PDF document text
- https://cdn.shopify.com/s/files/1/0437/5035/9194/files/berghaus_jackets_size_guide.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0667/1517/files/hndlagde_treleker_bter.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2299/2028/files/latest_south_african_hip_hop_music.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9090/2166/files/rafanudo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4456/8216/files/adventure_time_episodes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4184/8470/files/kiwujobisajur.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2370/3969/files/guromuzamudajer.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1991/7720/files/80304499724.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0878/5562/files/almidon_en_heces.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3263/2730/files/70574381658.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8072/8224/files/budez.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5593/9733/files/48400635400.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1470/9663/files/pedoximeko.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000a1c8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA1C8 | 4900 bytes |
SHA-256: 3bcf5ea92d82dc1ccad1b0ccddf32664dfcfe397143b92ac79fd32a004943787 |
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font_01_sfnt_off0000b280.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB280 | 10324 bytes |
SHA-256: 9cd8ea690b4a0186d7236263665fa9d9d4d60f4a0ae29fa222a443192cbb5e66 |
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