MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure at 'ttraff.com'. The document body, though heavily obfuscated, also contains this URL, suggesting it is the primary lure. The presence of a large number of external PDF links further supports a link farm or redirection strategy. No scripts were extracted, but the malicious redirection is sufficient to classify the attack pattern.
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=center+text+r+markdown+pdf
- http://files.uchpilf.org/uploads/1/3/0/7/130739362/rajizawer.pdf
- http://files.rashannaharmon.com/uploads/1/3/1/3/131381231/4218737.pdf
- http://files.heartrealization.com/uploads/1/3/1/4/131438642/zubakosa.pdf
- http://files.mcocoh.com/uploads/1/3/1/6/131637271/kugopijimubuw-setutezisefote-kitoxig-luvevaw.pdf
- https://cdn.shopify.com/s/files/1/0432/5592/2856/files/7780117343.pdf
- https://cdn.shopify.com/s/files/1/0433/4292/1886/files/89928728074.pdf
- https://cdn.shopify.com/s/files/1/0431/5709/4551/files/norfolk_erc_horse.pdf
- https://cdn.shopify.com/s/files/1/0434/2572/6625/files/built_in_functions_in_sql.pdf
- https://cdn.shopify.com/s/files/1/0433/4295/4661/files/suvifazadeloda.pdf
- https://cdn.shopify.com/s/files/1/0433/2313/0009/files/56509791556.pdf
- https://cdn.shopify.com/s/files/1/0430/2965/9797/files/kipofaximuxuxom.pdf
- https://cdn.shopify.com/s/files/1/0430/3749/1357/files/65894367298.pdf
- https://cdn.shopify.com/s/files/1/0438/4522/2557/files/cause_fear_5e.pdf
- https://cdn.shopify.com/s/files/1/0433/8499/5991/files/sezakotawenezoz.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/4274895189.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_off0000780c.bin7acd4df1b94ad6c9a149bc2dc710c0e5b22b62011b17b0179ef5dffb33c8b9f0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x780C | 5108 bytes |
font_01_sfnt_off0000896b.bin49f6ff3788a9ac2f80e22f15c1d9f9a38706ca7653a8f97aa5f5b4037ce306f4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x896B | 14844 bytes |
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