MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One of these links, https://ttraff.ru/pify?keyword=meiosis+worksheet%2523+1%252F+le-+biology+answer+key, is identified as a known malicious redirector. The presence of a link farm and a malicious redirector suggests an attempt to lure 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=meiosis+worksheet%2523+1%252F+le-+biology+answer+key
- http://batufupat.dawnrabey.com/uploads/1/3/1/4/131453213/6249418.pdf
- http://lawukov.ridgleawellness.com/uploads/1/3/2/6/132683014/nojoxuxikifu.pdf
- http://lunulutal.amandanelsonart.com/uploads/1/3/1/6/131636612/7977799.pdf
- https://cdn.shopify.com/s/files/1/0432/4855/0050/files/11th_std_botany_practical_book.pdf
- https://cdn.shopify.com/s/files/1/0428/7725/5836/files/90264152459.pdf
- https://cdn.shopify.com/s/files/1/0431/7757/4557/files/cladistics_lab_worksheet_answers.pdf
- https://cdn.shopify.com/s/files/1/0434/6835/7796/files/jivavune.pdf
- https://cdn.shopify.com/s/files/1/0431/2567/0037/files/pamirigisizewexetitosow.pdf
- https://cdn.shopify.com/s/files/1/0432/6971/8172/files/data_studio_download.pdf
- https://cdn.shopify.com/s/files/1/0431/7990/1096/files/bozafekokejepa.pdf
- https://cdn.shopify.com/s/files/1/0438/8257/8088/files/skywars_minecraft_servers.pdf
- https://cdn.shopify.com/s/files/1/0446/6917/3923/files/administrative_office_management_an_introduction_8th_edition.pdf
- https://cdn.shopify.com/s/files/1/0427/3415/7991/files/95647759193.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006ae0.bin9f8d3e96c340398ecec2cec0ce463f61f252b6bf5ffbc55008d18e9c300aad7b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6AE0 | 4376 bytes |
font_01_sfnt_off000079e2.bin131311bf3655c171fcf188d6b70ec92186c50411abaa04a4839fc72694675a7b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x79E2 | 10192 bytes |
font_02_sfnt_off00009cc6.bin1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9CC6 | 4324 bytes |
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