MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This 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, many pointing to disposable hosting, suggesting a link farm or SEO spam operation. One prominent URL, 'https://jacksth.ru/strik?utm_term=florida+cdl+practice+test+spanish', appears to be a redirector for phishing or malicious content. No scripts were extracted, but the PDF structure and numerous external links indicate a malicious intent to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
Heuristics 6
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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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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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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://jacksth.ru/strik?utm_term=florida+cdl+practice+test+spanish PDF link annotation
- https://cdn.sqhk.co/waxipefimafa/ghijjhF/alexa_rank_checker.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4450438/normal_5ff5903cbcc86.pdfIn PDF document text
- https://gojatoxemoniro.weebly.com/uploads/1/3/4/8/134894745/mitifilekazof.pdfIn PDF document text
- https://cdn.sqhk.co/mobobelelu/hbWomib/tiny_planets_episodes_wiki.pdfIn PDF document text
- https://cdn.sqhk.co/zodunoxurob/Yichchg/best_recharge_plan_for_vodafone.pdfIn PDF document text
- https://cdn.sqhk.co/vetipewalu/0jakwhh/rusijug.pdfIn PDF document text
- https://cdn.sqhk.co/jegamaxegev/cfgiiWG/49784693690.pdfIn PDF document text
- https://kuvolobogon.weebly.com/uploads/1/3/4/0/134012650/3752094.pdfIn PDF document text
- https://novomegaweg.weebly.com/uploads/1/3/4/7/134738931/peketetad-nowaren-lolufi-simokuzoxe.pdfIn PDF document text
- https://nimaxosonoj.weebly.com/uploads/1/3/4/8/134897368/sezagezoj.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4491398/normal_5fdbc614aac0c.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://493f174a-a540-412c-bacb-e5b7b26cbfcf.filesusr.com/ugd/95bb70_3101bfa2ddd74563acc47b82cbc37971.pdf?index=trueIn PDF document text
- https://413f70bc-0247-4a04-a3fc-eabb14e2b93f.filesusr.com/ugd/f18ee6_1f32caecec91413c95cdcc43c24ef57b.pdf?index=trueIn PDF document text
- https://4bc473c2-84d0-4913-8b4e-281bf44fba2e.filesusr.com/ugd/a25dbd_19ded4d5757640ba81a5f46cf739475e.pdf?index=trueIn PDF document text
- https://c84d532c-3b33-47d6-96aa-4134a1164eb1.filesusr.com/ugd/6d45f6_6be04c3be67c4eeabca46639ed31138c.pdf?index=trueIn PDF document text
- https://72a23b54-95c1-47c0-80d6-f7b1310faeb8.filesusr.com/ugd/65b209_fce8ad4dbf7c41dabcb93dc948ce7ae5.pdf?index=trueIn PDF document text
- https://ad16408e-fbd2-4c0d-b170-1fa3f72263cb.filesusr.com/ugd/bcd086_e7f9becf224c435bbf5807d2c82aa233.pdf?index=trueIn PDF document text
- https://51956041-da35-40aa-96c1-085c1f47c80d.filesusr.com/ugd/e6e573_dd77e3dadac343d8abfebc2f0a672f9f.pdf?index=trueIn PDF document text
- https://91ca87c2-c493-4616-adaa-fbcec45394e1.filesusr.com/ugd/6116da_8b6e6b6ff71b4238be9387be3ec8bc05.pdf?index=trueIn PDF document text
- https://e6343aec-df69-40e7-9959-3c0c55bf73c9.filesusr.com/ugd/6a9017_17c41e0b17854e3597ebfe9fd44de5c6.pdf?index=trueIn PDF document text
- https://73e8eba8-f08a-4c12-987a-519a82e171c2.filesusr.com/ugd/19159f_4ff9cbdfd53d4a85883e482e51f9e1df.pdf?index=trueIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00015fe7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15FE7 | 4904 bytes |
SHA-256: 430565fc5c1b010001524c3aab9d63abd3172ef23401713913fdc59c7af26ac9 |
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font_01_sfnt_off00017076.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17076 | 2012 bytes |
SHA-256: 1182553af4e4e1d4f08dc5c53a41ba3cf7bb24133579164eb638a84c8e765df2 |
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font_02_sfnt_off000179a9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x179A9 | 13104 bytes |
SHA-256: b376bc5fd7c3cc2a064740081438289ad3456dee25bf49dbf2223f0f7aa88468 |
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font_03_sfnt_off0001a4cf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A4CF | 4324 bytes |
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333 |
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