MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a significant number of embedded external links, with one identified as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains URLs that appear to be part of a link farm, likely intended to manipulate search engine results or lead users to malicious content. No scripts were extracted from this sample.
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=architecture+database+pdf
- http://files.sudermanmath.com/uploads/1/3/1/3/131380210/eda7fd3.pdf
- http://files.richlandarp.org/uploads/1/3/1/0/131070912/riwibanaj_jezedadakova_mikuvifekew_kafotid.pdf
- http://fidaf.scotlandflowersandmore.com/uploads/1/3/2/6/132695615/minafu.pdf
- http://files.mountaindreamer.net/uploads/1/3/1/3/131384663/5666146.pdf
- https://cdn.shopify.com/s/files/1/0431/7406/8390/files/50663009344.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tagitigupi.pdf
- https://cdn.shopify.com/s/files/1/0428/7175/0823/files/96340735165.pdf
- https://cdn.shopify.com/s/files/1/0433/2588/2518/files/28419387519.pdf
- https://cdn.shopify.com/s/files/1/0436/0133/0339/files/40256967141.pdf
- https://cdn.shopify.com/s/files/1/0436/2646/3385/files/sotivemoruzigeferitin.pdf
- https://cdn.shopify.com/s/files/1/0436/7751/5929/files/mobabasigusaj.pdf
- https://cdn.shopify.com/s/files/1/0434/9617/7816/files/kofotalabi.pdf
- https://cdn.shopify.com/s/files/1/0432/8266/1526/files/58671197079.pdf
- https://cdn.shopify.com/s/files/1/0433/2044/3045/files/20572555173.pdf
- https://cdn.shopify.com/s/files/1/0432/0319/9136/files/30211991387.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_off0000657b.bin2e748671083fbb874aca16b00534a1251643757aba9683c65d696f0dd4083e9a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x657B | 5340 bytes |
font_01_sfnt_off00007799.bin12ff863a5ca3301696cbee286ce0248f526ea74d6f2241772e2ba5889e0f788d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7799 | 9956 bytes |
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