MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a significant number of embedded links, identified as a link farm. One of these links, 'https://ttraff.ru/wix?keyword=aha+bls+manual+pdf+2015', is flagged as a known malicious redirector. The presence of a link farm and a malicious redirector strongly suggests an attempt to lure users to malicious sites, likely for phishing or malware delivery. The ML classifier also provided a very high confidence score for 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=aha+bls+manual+pdf+2015
- https://static.usrfiles.com/ugd/37428b_d1781719b31f44c28f2eeb77d2745462.pdf
- https://static.usrfiles.com/ugd/b8c837_b152819b36dc4d54b1e6a32dc423fe93.pdf
- https://static.usrfiles.com/ugd/f96b02_1ea532bd9bd44b7aa42278b6dc04ad3a.pdf
- https://static.usrfiles.com/ugd/913720_59a160f531ad413e8e4867fa37e65abd.pdf
- https://cdn.shopify.com/s/files/1/0430/5181/0969/files/facility_manager_roles_and_responsibilities.pdf
- https://cdn.shopify.com/s/files/1/0431/6043/6887/files/start_android_emulator_without_starting_android_studio.pdf
- https://cdn.shopify.com/s/files/1/0438/6373/6475/files/bemofafupamaju.pdf
- https://cdn.shopify.com/s/files/1/0431/4621/5584/files/29891942622.pdf
- https://cdn.shopify.com/s/files/1/0445/5114/3588/files/online_placement_system_project_report.pdf
- https://cdn.shopify.com/s/files/1/0432/6984/9248/files/vetapatodukakigi.pdf
- https://cdn.shopify.com/s/files/1/0435/5332/5215/files/2008_ap_calculus_bc_free_response.pdf
- https://cdn.shopify.com/s/files/1/0429/2424/5155/files/ballard_scoring_form.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_off00006191.bin7226f38b72cdd26693a4187e3f1ff4825b28e027444009374281e7e9e820ba2f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6191 | 5764 bytes |
font_01_sfnt_off00007516.bin3461feb3b845fec75b7a12c1f170e6ab011b6bdd59cefcf339ce4a76dca378e0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7516 | 9832 bytes |
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