MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a mass of external links, including a redirector to a malicious URL, disguised as a textbook. The ML classifier strongly indicated maliciousness. The primary attack vector appears to be a link farm designed to redirect users to malicious content, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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=brief+calculus+an+applied+approach+10th+edition+pdf
- http://files.gracehouseministry.com/uploads/1/3/0/7/130739664/rubulagobik.pdf
- http://files.donnaliberalistore.com/uploads/1/3/2/6/132681826/9086646.pdf
- http://files.gooddayhandmade.com/uploads/1/3/1/6/131636725/bozaxed.pdf
- http://kupape.toodarnhaute.com/uploads/1/3/1/3/131380600/705228.pdf
- http://files.jemdesignz.com/uploads/1/3/1/4/131438583/d0ad087.pdf
- https://cdn.shopify.com/s/files/1/0440/6562/0118/files/32635830517.pdf
- https://cdn.shopify.com/s/files/1/0429/1588/9305/files/tojaxojivo.pdf
- https://cdn.shopify.com/s/files/1/0429/5085/2762/files/24282689979.pdf
- https://cdn.shopify.com/s/files/1/0428/6241/1935/files/76425866019.pdf
- https://cdn.shopify.com/s/files/1/0437/6192/6293/files/buxasupojusimurufo.pdf
- https://cdn.shopify.com/s/files/1/0430/7265/1413/files/babunalo.pdf
- https://cdn.shopify.com/s/files/1/0432/6552/3862/files/jiliwolew.pdf
- https://cdn.shopify.com/s/files/1/0434/6304/9376/files/12521499870.pdf
- https://cdn.shopify.com/s/files/1/0433/5727/4261/files/speak_english_with_vanessa.pdf
- https://cdn.shopify.com/s/files/1/0431/4185/7448/files/wixilutekedovibukimujudij.pdf
- https://cdn.shopify.com/s/files/1/0433/6844/8152/files/44632968918.pdf
- https://cdn.shopify.com/s/files/1/0432/2210/6271/files/mizumipadutebunufo.pdf
- https://cdn.shopify.com/s/files/1/0431/6869/4432/files/22361802661.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007a1b.bin7333ca22df0487428c8a032251ea3b1f71b601e34c32b3fbcc87f017c902f6a7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A1B | 5484 bytes |
font_01_sfnt_off00008cb5.bin47f2438cd2d631c2fe5a5054400fadcc5a83b3b86f27a08ccbb49fb7b62919b8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8CB5 | 13752 bytes |
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