MALICIOUS
246
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged by multiple heuristics as malicious, including a critical finding for brand-impersonation credential phishing. It contains a large number of external links, many of which point to disposable hosting services, suggesting a link farm designed to obscure the ultimate destination. The primary lure appears to be related to 'suspicious activity on my social security number', a common phishing pretext.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 7
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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 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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Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISHDocument impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://debuvubuni.weebly.com/uploads/1/3/4/8/134846467/bulasafil-tivojem-raporalisuba.pdf.
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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://medvor.ru/pbw?utm_term=suspicious+activity+on+my+social+security+number PDF link annotation
- https://debuvubuni.weebly.com/uploads/1/3/4/8/134846467/bulasafil-tivojem-raporalisuba.pdfIn PDF document text
- https://wesafave.weebly.com/uploads/1/3/4/3/134307961/2084437.pdfIn PDF document text
- https://varusotefus.weebly.com/uploads/1/3/1/3/131398431/vipitu-kofitas.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387419/normal_6023bce44bd58.pdfIn PDF document text
- https://latovadavubu.weebly.com/uploads/1/3/4/7/134716683/sasirabum.pdfIn PDF document text
- https://leximefowa.weebly.com/uploads/1/3/2/6/132680903/pimapajawogupiwepe.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4495059/normal_605b473238154.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4495387/normal_60038b481e73a.pdfIn PDF document text
- https://lijixavin.weebly.com/uploads/1/3/4/5/134598275/e79a33eb.pdfIn PDF document text
- https://fufukarebalomok.weebly.com/uploads/1/3/4/3/134352968/lalavakedijasaja.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4417669/normal_604e1c203d999.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4368237/normal_5ff60cbe5fca3.pdfIn PDF document text
- https://zigaxedalinuj.weebly.com/uploads/1/3/4/0/134016671/1218214.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4420239/normal_60625ee5bac42.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/ace8043b-4b0d-4282-bdec-ef186b6a6cca/rumanuwezu.pdfIn PDF document text
- http://zevatirupura.pbworks.com/w/file/fetch/144678027/mera_bhola_hai_bhandari_ringtone_download_dj_youngster.pdfIn PDF document text
- http://kedajawi.pbworks.com/f/sizunu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5917a549-44a0-474f-be6f-f007dd333f4a/2107903742.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ef045feb-49fd-47fc-abf3-b2d49d26bfdd/45193725903.pdfIn PDF document text
- http://rujuboxu.pbworks.com/f/92814395720.pdfIn 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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000efb0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFB0 | 5484 bytes |
SHA-256: 84e40bacf2a2da03ea2962f2a23fb7166b62b5992fb71dcca8026e4d95bdd9a9 |
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font_01_sfnt_off00010249.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10249 | 10656 bytes |
SHA-256: 17b96fdeae8b8e85a1d69f6a761c6d264cba8d9ebdb5ef88861a85a4d43dd479 |
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