MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous links, including one to a known malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, contains text related to 'hero carburetor tuning pdf' and includes the malicious URL, suggesting a lure to a malicious site. The presence of a link farm and the ML classifier firing further support malicious intent.
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=hero+carburetor+tuning+pdf In PDF document text
- http://files.valleydjservice.com/uploads/1/3/1/4/131407625/65008b80fca0e5.pdfIn PDF document text
- http://files.greatmexgrillmesaverde.com/uploads/1/3/0/7/130740590/gigisijasiboma-xukitigisawukij-suwewo-vivunizutut.pdfIn PDF document text
- http://loduso.twohoursinthedark.net/uploads/1/3/1/0/131070450/ramebakojose.pdfIn PDF document text
- http://files.kathrynemyoung.com/uploads/1/3/1/0/131071076/porewuvofadaxa.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/1/0440/5533/0981/files/gerid.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0444/3216/2982/files/architectural_record_july_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9474/6023/files/7278140059.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2273/6798/files/kuvapoziwonaxepew.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2036/1629/files/88735270589.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1338/1028/files/darelilujazadewatobuneku.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9993/1295/files/zabiporovuxudaverufusi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7783/6702/files/jolomokeruxejuvolix.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3015/0309/files/94399039769.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/4215/8245/files/40374451833.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5012/9813/files/rixatifelasodisonuzakega.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3326/3253/files/pokibumojole.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/1681/2706/files/61575489940.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_off0000698a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x698A | 5096 bytes |
SHA-256: 5070c69bac7046b0584fab33e55193800266a17b2c8d3b83652c34a77b00fdc9 |
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font_01_sfnt_off00007adf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7ADF | 9852 bytes |
SHA-256: 56ac8d16e8be442230b38679a8105dd5f24ded2a462178514b9642eb038c41a7 |
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font_02_sfnt_off00009c96.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9C96 | 4324 bytes |
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361 |
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