MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many hosted on Shopify. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=irritable+bowel+syndrome+ppt+free', suggesting a lure for users searching for 'irritable bowel syndrome ppt free'. The ML classifier also strongly flagged this PDF as malicious.
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=irritable+bowel+syndrome+ppt+free
- http://files.doublejsdachunds.com/uploads/1/3/2/8/132814958/3790532.pdf
- http://bipil.theboysbarkingbakery.com/uploads/1/3/1/6/131637814/dawasubekifikuxepule.pdf
- https://cdn.shopify.com/s/files/1/0433/2329/3864/files/roger.pdf
- https://cdn.shopify.com/s/files/1/0433/8031/0174/files/zevebi.pdf
- https://cdn.shopify.com/s/files/1/0429/2670/2755/files/34769508233.pdf
- https://cdn.shopify.com/s/files/1/0428/2174/6847/files/71085392634.pdf
- https://cdn.shopify.com/s/files/1/0440/8039/8486/files/basic_english_test_with_answers.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15518423203.pdf
- https://cdn.shopify.com/s/files/1/0432/5395/6758/files/59110008104.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/12091312038.pdf
- https://cdn.shopify.com/s/files/1/0428/2079/6583/files/29346835000.pdf
- https://cdn.shopify.com/s/files/1/0433/5117/9416/files/23228741154.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_off00006156.bina537ec3e5f1cc44912a1247b9f501aef8e93ee9342bbd41ead64b8de346a8fc9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6156 | 1968 bytes |
font_01_sfnt_off00006a80.bin42ecd6c412f0d21cfb201bba1105607b2922f2e0329ebeedc9dac4b67640bbdc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6A80 | 5456 bytes |
font_02_sfnt_off00007d02.bin34f8634e6e322a7760c9bb511cd5b1273597998603d54b977627a77cc94df96b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D02 | 10608 bytes |
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