MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was identified as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains a large number of external links, with a critical heuristic indicating a 'PDF_SEO_LINK_FARM' which suggests an attempt to manipulate search engine results or drive traffic to malicious sites. The embedded URLs, such as 'https://trafffe.ru/strik?utm_term=terraform+aurora+db+cluster' and 'https://bojojibapofaz.weebly.com/uploads/1/3/4/4/134478515/800574d1ad8d3d.pdf', are key indicators of this malicious activity.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 5
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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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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External URI info PDF_URIPDF contains an external URL action
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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://trafffe.ru/strik?utm_term=terraform+aurora+db+cluster
- https://bojojibapofaz.weebly.com/uploads/1/3/4/4/134478515/800574d1ad8d3d.pdf
- https://cdn-cms.f-static.net/uploads/4414851/normal_5f97c396443d7.pdf
- https://cdn-cms.f-static.net/uploads/4385869/normal_5fa0bdeeaa065.pdf
- https://cdn-cms.f-static.net/uploads/4375350/normal_5f8b38f356e33.pdf
- https://cdn-cms.f-static.net/uploads/4455642/normal_5fad60f17ab38.pdf
- https://cdn-cms.f-static.net/uploads/4485014/normal_5faac7257ff52.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/fojaxexino/femevewavixawidijaxij.pdf
- https://s3.amazonaws.com/pusolefosex/70754277490.pdf
- https://uploads.strikinglycdn.com/files/49b2791c-6b5a-4a1c-a69a-93b08f7e3018/pavuvo.pdf
- https://uploads.strikinglycdn.com/files/eb21f283-cf08-47a5-ac6f-98112e66d3b3/bible_in_90_days_audiobook.pdf
- https://s3.amazonaws.com/fizup/ministry_ideaz_catalog_jehovah_s_witnesses.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_off000115e1.bin429a3c470954c6dda83f4ce5d5c8ccfd6491b9d0b87e8fb25428272ac3c9cded |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x115E1 | 5256 bytes |
font_01_sfnt_off000127a7.bin0325d28c337ec6e6cb7fa21735d31aa00c3643d5a76566ceb2d0a7e169f83131 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x127A7 | 12348 bytes |
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