MALICIOUS
152
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.com, which is disguised as a free antivirus download. The document also includes a large number of links to external PDFs hosted on various domains, many of which are benign but contribute to a link farm. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed for user redirection to 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.com/pify?keyword=avira+antivirus+for+pc+free++offline
- http://files.allotmentphotogallery.com/uploads/1/3/1/3/131384635/bubimobalojo.pdf
- http://files.thevikinglawyer.com/uploads/1/3/0/7/130738969/xofilumanofat.pdf
- https://cdn.shopify.com/s/files/1/0431/5050/8181/files/sour_grapes_story.pdf
- https://cdn.shopify.com/s/files/1/0430/1648/7065/files/28303673614.pdf
- https://cdn.shopify.com/s/files/1/0427/9474/6023/files/3867429044.pdf
- https://cdn.shopify.com/s/files/1/0433/5498/0520/files/80884030175.pdf
- https://cdn.shopify.com/s/files/1/0433/2224/5273/files/wovododetomar.pdf
- https://cdn.shopify.com/s/files/1/0430/8054/8503/files/kerovefatamubaja.pdf
- https://cdn.shopify.com/s/files/1/0428/2066/5510/files/rexuzef.pdf
- https://cdn.shopify.com/s/files/1/0434/9073/8328/files/50631092437.pdf
- https://cdn.shopify.com/s/files/1/0429/8709/4177/files/furetisinudagej.pdf
- https://cdn.shopify.com/s/files/1/0433/8787/9580/files/ladagisaminidananupuz.pdf
- https://cdn.shopify.com/s/files/1/0434/6891/4838/files/4210245154.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_off00006038.bin3234b8b44fae110815096f16a1a9b0cbbce24a1efa0393495229df2be6db43e7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6038 | 5060 bytes |
font_01_sfnt_off00007181.bindc0787ac4c46afd6434db114b893ef173ac38afe73299ff06203e69c855bac1c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7181 | 10376 bytes |
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