MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The sample is identified as a malicious PDF by multiple heuristics and a machine learning classifier, specifically flagging it as a brand-impersonation credential phishing lure for UPS. The embedded URL `https://nipisod.ru/strik?utm_term=teeter+hang+ups+for+sale+craigslist` and the link to `https://mawurimi.weebly.com/uploads/1/3/4/6/134661678/5702235.pdf` are indicative of a phishing campaign. The document was authored using wkhtmltopdf, which is sometimes used to generate malicious PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 6
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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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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://mawurimi.weebly.com/uploads/1/3/4/6/134661678/5702235.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://nipisod.ru/strik?utm_term=teeter+hang+ups+for+sale+craigslist PDF link annotation
- https://mawurimi.weebly.com/uploads/1/3/4/6/134661678/5702235.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4494138/normal_5fe0cd92cec6f.pdfIn PDF document text
- http://kudikadip.getenjoyment.net/agendas_2020.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4449406/normal_5ff8b12e58a8b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374372/normal_60418df0a5767.pdfIn PDF document text
- https://joxunirefebemi.weebly.com/uploads/1/3/4/3/134319414/lotasudi.pdfIn PDF document text
- http://tapozifokun.mywebcommunity.org/biztalk_server_tutorial.pdfIn PDF document text
- https://dowisapi.weebly.com/uploads/1/3/4/2/134266119/89338648.pdfIn PDF document text
- http://naturelofo.mypressonline.com/what_are_the_examples_of_literary_devices.pdfIn PDF document text
- https://xalidanazate.weebly.com/uploads/1/3/6/0/136082238/1707139.pdfIn PDF document text
- https://mojavopadagesit.weebly.com/uploads/1/3/5/3/135383036/puvubezopesaxigoxin.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4401558/normal_5fd1c50a9d8bd.pdfIn PDF document text
- http://mudixefibewab.mywebcommunity.org/zobilisiruvozuje.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4426697/normal_6016437a994bd.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://2aa0b900-127f-4603-a19a-6a731d3c9eb1.filesusr.com/ugd/5eaffa_6c8edea69e7046c6b4b5a5b64f74422c.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/jarirotexab/fatojetenafujaxejixapetew.pdfIn PDF document text
- https://fd7a53fe-11c1-4e60-83ad-ac1bb997268f.filesusr.com/ugd/5cf23b_b4ec67a0de9f49e3b6f2b32a399d898f.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/nuvukivaxiren/dizedujuvelibiju.pdfIn PDF document text
- http://kivarutumo.myartsonline.com/nitrate_ion_selective_electrode.pdfIn PDF document text
- https://e209d09f-5af8-48a0-acfc-72d03e9bea0d.filesusr.com/ugd/946fcc_9c420166c130437c88a96f81410ce1c7.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/vatosolikijike/20068841653.pdfIn PDF document text
- http://guxejusoselota.myartsonline.com/sowima.pdfIn PDF document text
- https://5fa60de5-32ab-41ac-ba65-77330e21e623.filesusr.com/ugd/2e16aa_0d0580c27c224210be26d727bf5c3f19.pdf?index=trueIn PDF document text
- http://jafixomedimun.onlinewebshop.net/gabaxujoxivaruwewadeja.pdfIn PDF document text
- https://s3.amazonaws.com/votawawo/attraction_movie_in_tamil.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_off0000ed51.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED51 | 5224 bytes |
SHA-256: 0c361e332c25e408cca618a34f643274d777265573617408ec4dcbaa932f109c |
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font_01_sfnt_off0000ff1a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF1A | 11164 bytes |
SHA-256: 00e94ed16a5efbc844d9643da3de134c47a212de2b2dafd053258a6df45cf76c |
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