MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links, many hosted on disposable domains, indicative of a link farm. The presence of a URL with a 'utm_term' parameter suggests a phishing or SEO manipulation attempt. ClamAV and ML heuristics confirm the malicious nature, classifying it as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9989
Heuristics 6
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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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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://maypoin.ru/strik?utm_term=reflexive+and+intensive+pronouns+worksheet+with+answers+pdf
- https://nuzoligul.weebly.com/uploads/1/3/3/9/133997434/nuzakepowezer.pdf
- https://noxerurivago.weebly.com/uploads/1/3/4/7/134767941/tagug.pdf
- https://sasurejif.weebly.com/uploads/1/3/5/9/135966776/de4f9d790a5548d.pdf
- https://vinifobak.weebly.com/uploads/1/3/5/2/135298549/c53447489a6.pdf
- https://wabupakiwe.weebly.com/uploads/1/3/6/0/136057256/18a333d8469d9.pdf
- https://dolojimopa.weebly.com/uploads/1/3/4/8/134887070/1652839.pdf
- https://fodolazaso.weebly.com/uploads/1/3/4/8/134891373/775387a604a7d9.pdf
- https://falijufik.weebly.com/uploads/1/3/5/3/135349852/kusapuv.pdf
- http://newoxoxi.mywebcommunity.org/8222590808.pdf
- http://podcard2020.site/nefodovapogeboj0tf2g.pdf
- http://dressnbuy.com/harkins_theatres_casa_grande_arizona7jlrd.pdf
- http://datiwufirul.medianewsonline.com/samsung_hvac_tech_support_phone_number.pdf
- https://rinefoza.weebly.com/uploads/1/3/4/8/134883618/kawujugaz.pdf
- https://borerejo.weebly.com/uploads/1/3/4/0/134040615/9425648.pdf
- http://picsonair.com/fenamejiluvamavudido6nzma.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://98748e4b-3258-471a-903e-8ea98415cca0.filesusr.com/ugd/fd7405_a98c89d7bab74f23912c1ef02990f907.pdf?index=true
- https://438e95ed-c264-4db5-88d3-1a9ca8b91b86.filesusr.com/ugd/733c1f_156f455c386f49d68f6299a7567e6f7a.pdf?index=true
- https://98e80eac-0673-4bf9-a3de-4132461903b3.filesusr.com/ugd/1acd69_7123cbd0d335432ab158a9016a583da8.pdf?index=true
- http://vurofanosikuga.atwebpages.com/31109699495.pdf
- https://fe92b815-f0fe-4223-924b-659339f44b90.filesusr.com/ugd/8f64fc_55944550008549edb68f4ff302bcb6da.pdf?index=true
- https://da5bec28-7969-4117-8ffb-5069fce5e80c.filesusr.com/ugd/31593d_18629315c04d4dd8ad066ce8812443bf.pdf?index=true
- https://aa0e52d0-3c12-4d86-bfd3-e3284f950a51.filesusr.com/ugd/eb1974_c400c7c9a1fe4ff29c4e7b5853bba47f.pdf?index=true
- http://zenakezogutomu.onlinewebshop.net/76571602311.pdf
- https://67acb2b6-3e42-4063-a073-371cb527a15d.filesusr.com/ugd/a81d48_69d8c6432fea49b0b6b08d3dc3f5d693.pdf?index=true
- 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
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f418.bindaa598e4bd6f35ca28123eccb3691aa211647e1834bb631fe7da654c7502b00a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF418 | 5420 bytes |
font_01_sfnt_off000106a7.bin8db9df00133e71930a38c5c82e623d260fa8755752934dc8fd4aa0cf250ffb7d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106A7 | 11976 bytes |
font_02_sfnt_off00012e63.bine82b440c914bb1adc691f25c3b7b2bfb87aa4171717be5d36ba228a0f1e79512 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E63 | 16172 bytes |
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