MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass of external links, including a critical redirector link to ttraff.com, disguised as review exercises. The ML classifier strongly indicates maliciousness. The document body, though heavily obfuscated, contains the malicious URL and numerous benign-looking Shopify URLs, likely part of a link farm to obscure the malicious destination.
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.com/pify?keyword=simple+present+tense+review+exercises+pdf
- http://files.ashlandsnowmobileclub.org/uploads/1/3/1/4/131437655/4592514.pdf
- http://files.ketolalab.com/uploads/1/3/0/9/130969399/gujezer.pdf
- http://files.fullmoonfarmnc.com/uploads/1/3/1/6/131637074/5101985.pdf
- https://cdn.shopify.com/s/files/1/0431/9979/1268/files/76974957093.pdf
- https://cdn.shopify.com/s/files/1/0440/9350/5688/files/78957804560.pdf
- https://cdn.shopify.com/s/files/1/0428/5294/1990/files/rofor.pdf
- https://cdn.shopify.com/s/files/1/0432/7063/5678/files/webugekev.pdf
- https://cdn.shopify.com/s/files/1/0432/3259/2040/files/81698164437.pdf
- https://cdn.shopify.com/s/files/1/0436/9406/3770/files/zaxofisizorev.pdf
- https://cdn.shopify.com/s/files/1/0429/8833/9361/files/vipuxodizenuriwanako.pdf
- https://cdn.shopify.com/s/files/1/0433/8316/0999/files/xapanidativ.pdf
- https://cdn.shopify.com/s/files/1/0431/6332/0471/files/81501830778.pdf
- https://cdn.shopify.com/s/files/1/0428/0057/8723/files/pathfinder_carrion_crown_download.pdf
- https://cdn.shopify.com/s/files/1/0433/7254/4150/files/call_flooder_program.pdf
- https://cdn.shopify.com/s/files/1/0433/6851/3686/files/nikoj.pdf
- https://cdn.shopify.com/s/files/1/0443/3369/5132/files/gipokowikoravikomuzizoz.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_off00005d9f.bin5d9b66ec80ee53e1eca6c66adb18758848b769b23f5f568ed1041c7af145205e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D9F | 5412 bytes |
font_01_sfnt_off00007007.bin20f0147880312c804cf8f14e717e1e75647c4193d6d34f2ee1ef07045aaef3a1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7007 | 10060 bytes |
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