MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged as malicious by multiple heuristics and a machine learning classifier. It contains a large number of embedded links, many pointing to disposable hosting services and redirectors, suggesting a link farm or phishing campaign. The presence of a link to 'ggtraff.ru' with a 'central nervous system brain answer key' UTM term indicates a potential lure for users seeking specific information, likely leading to malicious content or further phishing attempts.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 6
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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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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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/aws?utm_term=central+nervous+system+brain+answer+key
- https://xomarexisu.weebly.com/uploads/1/3/4/7/134701616/sixare.pdf
- https://gopejosakosi.weebly.com/uploads/1/3/4/8/134876247/982e74f67fe.pdf
- https://vigofamuzozovi.weebly.com/uploads/1/3/4/6/134671609/fugewap.pdf
- https://tavumake.weebly.com/uploads/1/3/2/7/132740551/5331218.pdf
- https://cdn-cms.f-static.net/uploads/4461763/normal_5fb57e0f07c9f.pdf
- https://cdn-cms.f-static.net/uploads/4378604/normal_5f8a1b80c67d9.pdf
- https://valuluxunu.weebly.com/uploads/1/3/2/7/132710491/mokidofufoxede.pdf
- https://cdn-cms.f-static.net/uploads/4413362/normal_5f99be7983b4a.pdf
- https://fugiweritukasuj.weebly.com/uploads/1/3/4/6/134682589/6004302.pdf
- https://fetevemukimagon.weebly.com/uploads/1/3/4/8/134896640/6467420.pdf
- https://xunitumewotoril.weebly.com/uploads/1/3/4/6/134612341/6873613.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- 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_off0000d6fe.bin37eada4669a3a9082bd9f99780a37679c3d2a054a3d54e67dcfeabd112e80e3b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6FE | 5192 bytes |
font_01_sfnt_off0000e8ad.binf2179b19a7dacd215269df48888d62c5cd473d70d3aa901a7b250140bb0ec3bc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8AD | 9984 bytes |
font_02_sfnt_off00010acc.bin9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10ACC | 4324 bytes |
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