MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a large number of embedded links, with the primary link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Lcci level 3 question answer 2017' and the malicious URL, suggesting a lure to trick users into clicking on the malicious link. The ML classifier also strongly indicated maliciousness.
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/wix?keyword=lcci+level+3+question+answer+2017
- https://cdn.shopify.com/s/files/1/0437/5193/2056/files/reflection_and_refraction_of_light_class_10_notes.pdf
- https://cdn.shopify.com/s/files/1/0429/7215/1959/files/75833963269.pdf
- https://cdn.shopify.com/s/files/1/0429/9508/9559/files/zetegudu.pdf
- https://cdn.shopify.com/s/files/1/0439/6548/1118/files/watavugot.pdf
- https://static.usrfiles.com/ugd/b8c837_56b804a908ab43a5a2669e288ce001d1.pdf
- https://static.usrfiles.com/ugd/b8c837_5275b60d53e04940a0f0ca0851ebc307.pdf
- https://static.usrfiles.com/ugd/0fdb6d_b35cdc462a29424480bb7ecba0360e20.pdf
- https://static.usrfiles.com/ugd/b8c837_2f201087b05741799dd12326d283ecb9.pdf
- https://static.usrfiles.com/ugd/b8c837_29ad22c65e514da99772012ea466b01c.pdf
- https://static.usrfiles.com/ugd/b8c837_d5604d5f2d7741efba6f247756932ddc.pdf
- https://static.usrfiles.com/ugd/286fb8_b531ef40decc4a0594d4c5d11c4c2eee.pdf
- https://static.usrfiles.com/ugd/08fe48_e768dad50ebf4854887350800bd5a71b.pdf
- https://static.usrfiles.com/ugd/b8c837_02aa42f81d644e0993de17950c2cb1a6.pdf
- https://cdn.shopify.com/s/files/1/0462/0831/9641/files/genotype_phenotype_worksheet.pdf
- https://cdn.shopify.com/s/files/1/0430/7556/7777/files/sibexutumodi.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_off00005162.bin95ada6e12176e1158bf4cd62a2f6debdf8d63917018d4e6f72d643b243eaefac |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5162 | 3300 bytes |
font_01_sfnt_off00005d36.binb568b2aa268681e4dc8cfd05a76b0756ce96e34e5abe73d628530ebd54588800 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D36 | 5580 bytes |
font_02_sfnt_off00007064.bin8da5766e7643c31cf4661efbfa2213ddc7611950dbfc36ce7f9d956a06253209 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7064 | 10108 bytes |
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