MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is likely used to obscure the final malicious destination. The document body, though heavily obfuscated, contains text related to a worksheet and includes the malicious URL, suggesting a lure to trick users into clicking malicious links.
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=audism+unveiled+movie+worksheet+answers
- http://bonalamin.tunedinteachers.com/uploads/1/3/1/6/131606289/2b98f7acbda6.pdf
- http://files.fdryabc.com/uploads/1/3/1/4/131438471/depiworuku.pdf
- http://files.davetanproperty.com/uploads/1/3/1/4/131438453/52fe7b3b.pdf
- http://zeroli.weeadventures.com/uploads/1/3/1/6/131607254/bd74a6e24b73c.pdf
- http://files.rochonsandshall.com/uploads/1/3/1/4/131406735/kedibetewawevimesuke.pdf
- https://cdn.shopify.com/s/files/1/0433/1841/1417/files/51171867379.pdf
- https://cdn.shopify.com/s/files/1/0432/7296/2203/files/13827206008.pdf
- https://cdn.shopify.com/s/files/1/0437/6113/9861/files/bapomefejapunameviwodamed.pdf
- https://cdn.shopify.com/s/files/1/0427/4615/1078/files/ketazevelijujo.pdf
- https://cdn.shopify.com/s/files/1/0430/2897/1674/files/43710394396.pdf
- https://cdn.shopify.com/s/files/1/0428/2020/6758/files/wumitew.pdf
- https://cdn.shopify.com/s/files/1/0439/3120/5787/files/spoken_english_malayalam.pdf
- https://cdn.shopify.com/s/files/1/0430/5023/8101/files/mewotogujokokudufep.pdf
- https://cdn.shopify.com/s/files/1/0428/8482/5247/files/collateral_agreement_sample.pdf
- https://cdn.shopify.com/s/files/1/0439/3933/2251/files/telegram_animated_stickers.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_off0000558b.bin37c6194fb76379d1a948d261078ce4f2dcaec6cacbbe867c82e97ad0486eb148 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x558B | 5272 bytes |
font_01_sfnt_off00006757.bina999186ea1f5fa7eefab59d8d2b2b9d2637d90772f6aa35859fa32dfc002674d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6757 | 10396 bytes |
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