MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged by ClamAV and an ML classifier as malicious, specifically as a phishing trojan. It contains a large number of external links, many of which are likely part of an SEO farm or a link distribution network. The document body, though heavily obfuscated, suggests a lure related to 'managerial accounting answer key'. No scripts were extracted, but the presence of numerous external links indicates a potential for downloading further payloads or redirecting users to malicious sites.
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://traffine.ru/123?utm_term=introduction+to+managerial+accounting+answer+key
- https://cdn-cms.f-static.net/uploads/4379844/normal_5f9a95c2a9001.pdf
- https://cdn-cms.f-static.net/uploads/4496013/normal_5fab754acc77b.pdf
- https://cdn-cms.f-static.net/uploads/4368962/normal_5fa5ac9edd250.pdf
- https://cdn-cms.f-static.net/uploads/4392439/normal_5fa209dc63afa.pdf
- https://vufavinit.weebly.com/uploads/1/3/4/6/134649981/a342671188aae9.pdf
- https://cdn-cms.f-static.net/uploads/4370284/normal_5f91325ce61eb.pdf
- https://cdn-cms.f-static.net/uploads/4371023/normal_5f9191f63d7e6.pdf
- https://xamonato.weebly.com/uploads/1/3/2/8/132814301/dawegazefomiji_korilozodev.pdf
- https://lesofetu.weebly.com/uploads/1/3/1/3/131378838/lofakomirizufaf.pdf
- https://cdn-cms.f-static.net/uploads/4365998/normal_5f87cc96d5b40.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/0530ca8e-0eb8-4b38-8a05-6f2fd5def973/rogue_guide_5e_dnd.pdf
- https://uploads.strikinglycdn.com/files/b234fc2f-9bf3-47ca-b8ae-b10cbc4c4370/logitech_mx5000_manual.pdf
- https://s3.amazonaws.com/nopomewegobij/zizexaseludanesipunu.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_off00014c0e.bin42b07abcd5808a949f92a78a6e4012bdda23f3ec9058563c7b416543d6c32cfa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14C0E | 5452 bytes |
font_01_sfnt_off00015e99.bina344e5ccc6419763285a316bdaa000d20efdcc7beaa6fd5fe936aba24e3f533e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15E99 | 10812 bytes |
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