MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojanized document. It contains a link farm with numerous external PDF links, one of which points to a URL designed to appear as 'instructions' for a 'Hd 1688 clock'. While no scripts were explicitly extracted, the PDF structure and heuristic firings suggest it's designed to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9936
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-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://trafftec.ru/123?utm_term=hd+1688+clock+instructions
- https://cdn-cms.f-static.net/uploads/4453118/normal_5fa594dcd4f8b.pdf
- https://cdn-cms.f-static.net/uploads/4387712/normal_5fb98928f241b.pdf
- https://vamubediva.weebly.com/uploads/1/3/4/9/134901044/sezovakekidel.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/sedimeraxufi/information_about_basketball_game_rules.pdf
- https://s3.amazonaws.com/pozokimepe/music_theory_inversions_worksheet.pdf
- https://s3.amazonaws.com/farefasejikap/interracial_dating_app.pdf
- https://uploads.strikinglycdn.com/files/4c78c48c-da3a-4c9b-a4a4-59c5621991cf/15935457995.pdf
- https://uploads.strikinglycdn.com/files/532de5bd-9d38-4ae0-8ef3-a597b9d6b4c0/how_to_train_your_dragon_2_online_streaming.pdf
- https://s3.amazonaws.com/lejivugeleguwod/unduh_nonstop_ball_mod_apk.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000140de.binc94b748e9e6b05db6bf6efd01d5d6a713043d9fa83e91e249ac970b781e1a7e0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x140DE | 5148 bytes |
font_01_sfnt_off0001526b.bin5132853f338eb9e8774fe03b2dfc44117e2cfa40161dd95b80f1ce90dda9582c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1526B | 2224 bytes |
font_02_sfnt_off00015c1a.bin63a484f662e417627457708f0ba651fb79273c53b645f2d92420b351a6ce9f22 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15C1A | 11072 bytes |
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