MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment
T1204.002 Malicious File: Malicious Link
The PDF contains a large number of embedded links, forming a link farm, with one link pointing to a known malicious redirector at ttraff.ru. The ML classifier also strongly indicated maliciousness. The document body appears to be obfuscated text related to the keywords found in the malicious URL, suggesting a lure to trick users into clicking the malicious link.
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=nsm+hit+120+jukebox+manual
- http://hjl.cloudo.pw/download
- https://cdn.shopify.com/s/files/1/0435/3500/7893/files/dipale.pdf
- https://cdn.shopify.com/s/files/1/0436/1751/7725/files/business_administration.pdf
- https://cdn.shopify.com/s/files/1/0428/6863/7862/files/82878236223.pdf
- https://static.usrfiles.com/ugd/b8c837_df087bd10e5f419e8aa4f439edae7421.pdf
- https://cdn.shopify.com/s/files/1/0431/3153/5509/files/atropin_sulfat.pdf
- https://cdn.shopify.com/s/files/1/0432/0077/4307/files/antibiotic_sensitivity_test_kirby_bauer_method.pdf
- https://cdn.shopify.com/s/files/1/0448/1276/3298/files/assistant_engineer_civil_books.pdf
- https://cdn.shopify.com/s/files/1/0434/0088/8469/files/fundamentals_of_communication_systems_2nd_edition.pdf
- https://cdn.shopify.com/s/files/1/0432/7876/2140/files/36166202208.pdf
- https://static.usrfiles.com/ugd/49be48_fe256910823e4951a636badf06ba05b7.pdf
- https://static.usrfiles.com/ugd/e73fea_76db52b12450441bbe50c8a713cc939a.pdf
- https://static.usrfiles.com/ugd/02beb7_03799040f6d249878e6806227405582d.pdf
- https://static.usrfiles.com/ugd/b8c837_f08824529f9b4738bcc0c7db2681c5c1.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_off00005934.bin36c515532c1710fb57752c3871310a62c1f637a2e79d14f58ee9820f2f35e9df |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5934 | 5472 bytes |
font_01_sfnt_off00006bbb.binfe3a179151c4b102e3cc427e958dc523c994788a1de3112b3e5afb3894574ffd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6BBB | 13304 bytes |
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