MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a significant number of external links, many of which are generated in a pattern suggestive of an SEO link farm. One critical heuristic identified a mass external PDF link farm. The document body, though heavily obfuscated, contains text related to 'basic thai phrases pdf' and the authoring application 'wkhtmltopdf', indicating a potential lure. The presence of external URLs, including one that appears to be a phishing attempt, suggests the document is used to redirect users to malicious sites or to manipulate search engine rankings.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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://pelibifir.ru/award?keyword=basic+thai+phrases+pdf
- http://lbaranaydin.com/ohio_northern_campus_mapwrtsq.pdf
- https://buvelixajotoneb.weebly.com/uploads/1/3/5/9/135982000/8998719.pdf
- http://minuzin.22web.org/hayward_chlorinator_cl200__cl220_lid_wrench_opener_tool.pdf
- http://upsbox.ru/zezunuriwewgstig.pdf
- https://static.s123-cdn-static.com/uploads/4445869/normal_5ff709ee005ef.pdf
- https://ratofesut.weebly.com/uploads/1/3/5/3/135304008/8034436.pdf
- https://cdn-cms.f-static.net/uploads/4446287/normal_5fdbb073c94f1.pdf
- https://cdn-cms.f-static.net/uploads/4411683/normal_60327c1c0e02b.pdf
- https://wuvekodufunat.weebly.com/uploads/1/3/5/2/135298648/4783088.pdf
- https://tewosafaxuw.weebly.com/uploads/1/3/1/3/131379700/5982211.pdf
- https://static.s123-cdn-static.com/uploads/4374376/normal_5fdf5c16d1da3.pdf
- https://rikekipodoze.weebly.com/uploads/1/3/0/7/130776447/dujesu_xamerapi.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://s3.amazonaws.com/liwafo/teachers_day_2018_images_free.pdf
- https://s3.amazonaws.com/gotitibekovi/76910638202.pdf
- https://s3.amazonaws.com/rorives/66640044876.pdf
- https://s3.amazonaws.com/mawesenasijoser/avery_business_card_template_pages.pdf
- https://s3.amazonaws.com/bibejovixapis/lifugeku.pdf
- http://kifagugurubox.rf.gd/32061533583.pdf
- https://s3.amazonaws.com/zemigiduwagafu/headless_horseman_jack_o_lantern_template.pdf
- https://s3.amazonaws.com/besafefaf/14248256356.pdf
- https://s3.amazonaws.com/dinisemowoge/interview_guide_questions_qualitative_research.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_off0000f486.bina65c76dfc4117ff27178addd02601378e22259ce4fd420c5c788c640d8d73a03 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF486 | 4832 bytes |
font_01_sfnt_off00010500.bin5848647d6e7cb312cb51bc139a3743d8b91de88a474abc6b7daf9aa9dd6c9aec |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10500 | 11456 bytes |
font_02_sfnt_off00012a8a.bin1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A8A | 4324 bytes |
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