MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains multiple embedded URLs, with a critical heuristic firing for a malicious redirector link and another for a PDF link farm. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, a tool sometimes used to create malicious PDFs. The primary attack vector appears to be redirecting users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 5
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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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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://ggtraff.ru/strik?utm_term=action+truck+parts+bolingbrook+il
- https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/5926207.pdf
- https://nulixedupalaz.weebly.com/uploads/1/3/0/7/130739510/fepazi.pdf
- https://tapebosipufadiz.weebly.com/uploads/1/3/4/3/134366988/fb2b8e09044.pdf
- https://mosuzikovadapa.weebly.com/uploads/1/3/4/6/134667275/2f2c3ca31.pdf
- https://xodasolilixodi.weebly.com/uploads/1/3/4/8/134874129/1ab5e1ab81.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static1.squarespace.com/static/5fc6e107791da6493f66ed7c/t/5fc8167c094cf7617db25e89/1606948478878/dragon_heroes_tactics_reroll.pdf
- https://s3.amazonaws.com/nelizenejakarug/australia_snow_report_forecast.pdf
- https://s3.amazonaws.com/kudowo/st_martin_of_tours_franklin_wi.pdf
- https://s3.amazonaws.com/jaburirarov/13548091788.pdf
- https://s3.amazonaws.com/xamibudasagas/3514485046.pdf
- https://uploads.strikinglycdn.com/files/2e257a0b-8ec3-419d-8865-9c0338005747/36840491156.pdf
- https://s3.amazonaws.com/nazekisigiduz/95831461911.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b2cc.bin6237cf7d16a52579f5774b2cf4e59bf90a75e13aee135b1ae1a7a9685a4ccaa8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB2CC | 5292 bytes |
font_01_sfnt_off0000c4dc.bind9b3b94649bc0aa8e32851b6c2fae480faaff8b9a8e8a042ff3dec30c5903288 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC4DC | 9824 bytes |
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