MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
T1059.001 PowerShell
The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, suggests a lure related to a 'calendar 2020 pdf'. The primary malicious URL identified is ttraff.ru, which is likely used to redirect the user to a malicious payload. The presence of a link farm further supports the delivery mechanism.
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=calendario+2020+por+mes+pdf+para+imprimir
- http://files.lesswastemorecommunity.com.au/uploads/1/3/0/7/130775518/7101315.pdf
- http://files.smokefreebyattrition.com/uploads/1/3/1/6/131637658/45adb6b.pdf
- http://files.federfarm.com/uploads/1/3/0/7/130739926/6ffda04ba.pdf
- http://files.mountainsandmolehills.org/uploads/1/3/1/4/131453177/2877163.pdf
- https://cdn.shopify.com/s/files/1/0434/9244/2264/files/93469208232.pdf
- https://cdn.shopify.com/s/files/1/0437/1628/0475/files/jixusizajikajusuk.pdf
- https://cdn.shopify.com/s/files/1/0434/4047/2214/files/92914256944.pdf
- https://cdn.shopify.com/s/files/1/0430/3070/8385/files/lujodukonixutokorupato.pdf
- https://cdn.shopify.com/s/files/1/0440/0391/7974/files/43130615238.pdf
- https://cdn.shopify.com/s/files/1/0433/6844/8152/files/70534228388.pdf
- https://cdn.shopify.com/s/files/1/0430/0092/2261/files/30624604149.pdf
- https://cdn.shopify.com/s/files/1/0430/7193/0529/files/gadekusutiva.pdf
- https://cdn.shopify.com/s/files/1/0429/7188/9815/files/57805294806.pdf
- https://cdn.shopify.com/s/files/1/0432/1270/1854/files/78662649368.pdf
- https://cdn.shopify.com/s/files/1/0432/2109/0471/files/35878563109.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_off000078d4.bin6eb44e014ba940c7812adb8301007def7765fe9e62088fd8cbcdfde2807c91d2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x78D4 | 5192 bytes |
font_01_sfnt_off00008a57.bind08fe587319e5fb29280b291f8c050c8352e01da3ba536ac0ee82e6329db43ec |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8A57 | 11424 bytes |
font_02_sfnt_off0000afba.bin24baddaed424bc029a81597139cab15ff5209d7d3a0634b7cb16d25bc132c1f0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAFBA | 16436 bytes |
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