MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 Malicious Link
The PDF file contains multiple embedded URLs, with one identified as a malicious redirector. The ML classifier strongly indicated maliciousness. The document body, though heavily obfuscated, contains the same malicious URL. The presence of a link farm suggests an attempt to manipulate search engine results or distribute content broadly, with the primary malicious link being the most critical IOC.
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=yowhatsapp++2019+september
- http://files.kimmyangelique.com/uploads/1/3/1/0/131070246/volibesitipoteza.pdf
- https://cdn.shopify.com/s/files/1/0433/9957/7756/files/what_are_your_weaknesses_interview_answer.pdf
- https://cdn.shopify.com/s/files/1/0436/2646/3392/files/xadulumotuwal.pdf
- https://cdn.shopify.com/s/files/1/0427/9618/7815/files/21634104665.pdf
- https://cdn.shopify.com/s/files/1/0434/0904/7708/files/dd-_214_blanket.pdf
- https://cdn.shopify.com/s/files/1/0429/9715/3943/files/nouns_verbs_adjectives_adverbs_pronouns.pdf
- https://cdn.shopify.com/s/files/1/0432/0319/9138/files/wemamap.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/89647405972.pdf
- https://cdn.shopify.com/s/files/1/0434/7451/8178/files/tesuluwidenopekapikori.pdf
- https://cdn.shopify.com/s/files/1/0432/6542/5570/files/pebupuxenenezu.pdf
- https://cdn.shopify.com/s/files/1/0429/7523/2153/files/pepadetigixiratoremusonis.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_off00006d96.bin60e0e9c6a0312212c620f549a3a55f0aa77edf74e0ed98865aae669fb573be15 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D96 | 5704 bytes |
font_01_sfnt_off000080e7.bin18d5a7738a3b4c5f305d4d81be58f98ef6a1047a5df7fcd457dc61db1bb0d02a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x80E7 | 10304 bytes |
font_02_sfnt_off0000a464.bin387f91ab73dd3685bd686a537218a99aec609482d27bc59cdc26a1338acb3a5f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA464 | 16656 bytes |
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