MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a large number of embedded links, including a critical finding of a link to known malicious redirector infrastructure at 'https://ttraff.cc/pify?keyword=current+events+trivia+with+answers'. The document body, though heavily obfuscated, contains text related to trivia and current events, suggesting a lure. The ML classifier also strongly indicated maliciousness. The primary attack pattern involves tricking the user into clicking the malicious link, which is likely to lead to a phishing page or malware download.
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.cc/pify?keyword=current+events+trivia+with+answers
- http://files.thefuturehollys.com/uploads/1/3/1/4/131452824/feworuramewata-lafad.pdf
- http://files.suryateguh.org/uploads/1/3/1/8/131856121/2654705.pdf
- https://cdn.shopify.com/s/files/1/0463/0786/8834/files/lincoln_sync_3_android_auto_update.pdf
- https://cdn.shopify.com/s/files/1/0428/4642/1158/files/mathematics_for_economics_hoy.pdf
- https://cdn.shopify.com/s/files/1/0462/8568/4897/files/14186314082.pdf
- https://cdn.shopify.com/s/files/1/0433/5557/0341/files/77509573454.pdf
- https://cdn.shopify.com/s/files/1/0434/2058/2050/files/jasuzadokazojeketu.pdf
- https://cdn.shopify.com/s/files/1/0431/8868/2915/files/test_bulats_anglais.pdf
- https://cdn.shopify.com/s/files/1/0428/0382/2755/files/save_webpage_as_firefox_windows_10.pdf
- https://cdn.shopify.com/s/files/1/0436/0532/8034/files/rivibozede.pdf
- https://cdn.shopify.com/s/files/1/0428/5235/2159/files/zikawisokonerukifa.pdf
- https://cdn.shopify.com/s/files/1/0433/1136/6309/files/refukedoki.pdf
- https://cdn.shopify.com/s/files/1/0437/7408/3233/files/kitani.pdf
- https://cdn.shopify.com/s/files/1/0431/6938/2568/files/87457531472.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_off00005d53.bin6427a91d90015ab6910b0164720e8c8f803c32ddfc548aa5692acdc090cd4fd0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D53 | 4796 bytes |
font_01_sfnt_off00006dad.bin8d5d15223fef0afb4f4d9b2ce029d7587d95c4dfddae286bd6293cd829e09b79 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6DAD | 10748 bytes |
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