MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.ru, which is disguised as a document about the bubonic plague. The ML classifier strongly indicated maliciousness. The document body itself is heavily obfuscated but contains the malicious URL. The presence of a link farm heuristic suggests a broader campaign to distribute malicious content.
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=bubonic+plague+history+pdf
- http://files.robpedley.co.uk/uploads/1/3/0/8/130874170/jiwatutujobu_xagazamej.pdf
- http://files.drywalltucson.com/uploads/1/3/1/4/131438313/xosumidepurab_lunobovapupo.pdf
- http://files.adibartolopercussion.com/uploads/1/3/0/7/130776350/7a3e1a01cd4943.pdf
- http://files.parenting-examiner.com/uploads/1/3/0/8/130874257/e5007341985.pdf
- https://cdn.shopify.com/s/files/1/0428/1748/7011/files/kejotosijirelujiz.pdf
- https://cdn.shopify.com/s/files/1/0433/5039/2984/files/92858362675.pdf
- https://cdn.shopify.com/s/files/1/0430/9126/3649/files/tratamiento_rinitis_alergica_2020.pdf
- https://cdn.shopify.com/s/files/1/0431/8350/5562/files/mazukud.pdf
- https://cdn.shopify.com/s/files/1/0435/2914/2426/files/vilepab.pdf
- https://cdn.shopify.com/s/files/1/0431/7921/2959/files/google_analytics_manual.pdf
- https://cdn.shopify.com/s/files/1/0439/3353/2315/files/pokemon_colosseum_guide.pdf
- https://cdn.shopify.com/s/files/1/0429/1834/6915/files/poblamiento_de_america_teorias.pdf
- https://cdn.shopify.com/s/files/1/0432/3291/9720/files/mavaremesefudoxefasubix.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fatexuxutul.pdf
- https://cdn.shopify.com/s/files/1/0432/8259/6000/files/19568091555.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_off00016768.bin8dd1efdd07009a6ea4482f618fc6c1695059e7dab53059a4dff4c60946e80c7d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16768 | 5708 bytes |
font_01_sfnt_off00017aca.bin0d7f1b832654f5661a7a8c65b5398a6d343025b4c1a6335f75a085809c05aadd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17ACA | 12280 bytes |
font_02_sfnt_off0001a362.bine938612e7f68c7377edc14a94d56d97ec3d5ab0e1d62d66081f7913b8668390e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A362 | 16180 bytes |
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