MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1539 Steal or Forge Credentials
This PDF document was flagged by multiple heuristics, including a machine learning classifier and ClamAV, indicating malicious intent. The 'SE_MFA_LURE' heuristic strongly suggests the document is designed to harvest credentials or abuse multi-factor authentication by impersonating a login or verification page. The presence of numerous external URIs, many pointing to disposable hosting, further supports a phishing or credential harvesting campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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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MFA / one-time-code harvesting lure high SE_MFA_LUREDocument asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
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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://cructi.ru/pbw?utm_term=how+do+you+delete+voicemail+on+vtech+phone PDF link annotation
- https://static.s123-cdn-static.com/uploads/4392667/normal_5ff8b855d6963.pdfIn PDF document text
- https://jibeguviju.weebly.com/uploads/1/3/4/7/134723477/b5a96e2.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4465685/normal_603ae9ead6553.pdfIn PDF document text
- https://tafebitekule.weebly.com/uploads/1/3/0/7/130776603/ralijitofide.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4468828/normal_604d0048641b5.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4491175/normal_5ff7ca0616f17.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4450746/normal_604957e0d74d0.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4452148/normal_5ff1bda441107.pdfIn PDF document text
- https://static.s123-cdn-static-d.com/uploads/4465149/normal_60b6fec0ce1e5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4489598/normal_60b86ed09a734.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://tugewuvog.pbworks.com/f/80568245154.pdfIn PDF document text
- http://jukozatixul.pbworks.com/f/veredosupogijajaju.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2ba49494-dc41-4d6e-9d22-5b89b9af2e54/26567361814.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c3df30d4-6112-4443-be81-466d1077d33a/when_did_the_sherlock_holmes_stories_take_place.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/cda03288-ab5a-44da-bed3-8c7eb403df19/70820252412.pdfIn PDF document text
- http://vimadutukad.pbworks.com/f/63256971194.pdfIn PDF document text
- http://zabodovojif.pbworks.com/w/file/fetch/144750669/2492175899.pdfIn PDF document text
- http://pudamalulera.pbworks.com/f/tomazegatazutajejumonu.pdfIn PDF document text
- http://lulimogosan.pbworks.com/f/suzuki_drz_400_velocidad_maxima.pdfIn PDF document text
- http://dagomiwavi.pbworks.com/f/cydia_impactor_ios_no_computer.pdfIn PDF document text
- http://viluxese.pbworks.com/w/file/fetch/144687264/what_are_the_main_characteristics_of_operations_research.pdfIn PDF document text
- http://mosijiv.pbworks.com/w/file/fetch/144750843/52371307506.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_off0000ecdc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECDC | 5256 bytes |
SHA-256: 0b4903a15c88de39b2000cbfedfccf4affae2f6f899fb083384cc9897f2f1b06 |
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font_01_sfnt_off0000fead.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEAD | 10980 bytes |
SHA-256: 57430637dd4a68e165ce25dd2cbca97952002cb24dfa4f2dcfb46adf49c5259b |
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