MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link to a known malicious redirector, ttraff.ru, which is disguised as an 'android studio developer guide pdf'. This heuristic, combined with the ML classifier flagging the PDF as malicious, indicates a phishing or scam attempt. The document body itself is heavily obfuscated and contains embedded URLs, suggesting it is designed to lead users to malicious infrastructure.
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=android+studio+developer+guide+pdf
- http://files.wayneswindow.com/uploads/1/3/0/8/130874477/4514532.pdf
- http://mimini.josephhickman.com/uploads/1/3/0/7/130775735/fofufefokeruj-bisebujusati-jararud.pdf
- http://boton.baijingbox.com/uploads/1/3/1/4/131453267/d5fd1c730e.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0430/1789/6089/files/85835898721.pdf
- https://cdn.shopify.com/s/files/1/0438/9853/6091/files/50695432953.pdf
- https://cdn.shopify.com/s/files/1/0432/7941/7504/files/sipilalojufepamosololum.pdf
- https://cdn.shopify.com/s/files/1/0433/8620/8406/files/43307920362.pdf
- https://cdn.shopify.com/s/files/1/0435/4513/3207/files/gikuzukozizetofoj.pdf
- https://cdn.shopify.com/s/files/1/0439/1682/0648/files/beautiful_loser_lyrics.pdf
- https://cdn.shopify.com/s/files/1/0431/4431/5029/files/dinosaurs_before_dark_download.pdf
- https://cdn.shopify.com/s/files/1/0429/8830/6586/files/autodesk_alias_tutorial_beginner.pdf
- https://cdn.shopify.com/s/files/1/0431/3848/2332/files/tecumseh_carburetor_identification.pdf
- https://cdn.shopify.com/s/files/1/0430/9640/8218/files/45940626339.pdf
- https://cdn.shopify.com/s/files/1/0432/4553/5400/files/44329384336.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000072d2.binb02b2fcf1002a98335830b1d487ae477a0f729272b12f1cc3d2076543cbe507d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x72D2 | 5048 bytes |
font_01_sfnt_off0000841d.bin24bbd1d58d25f7d790955bf1af71507fcffccd7e58cbfd3b3e38da7f438c9144 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x841D | 11348 bytes |
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