PDF malware analysis — malicious · 82f945eac7b98319

MALICIOUS

PDF

79.7 KB Created: 2021-03-26 13:14:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 93f2c4f82ee0bcd917b4827d18db819b SHA-1: d245df05cf085ce7f8a2b1d04880a7dec8e1a79c SHA-256: 82f945eac7b98319f1212261a4af3dc1bdeb902743836111650ee5a9dd04fa03

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'https://ponafet.ru/strik?utm_term=the+saxon+stories+amazon', which is likely a phishing or malware distribution site. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, a tool sometimes used to create malicious PDFs.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The 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.
Embedded URL info EMBEDDED_URL

One 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://ponafet.ru/strik?utm_term=the+saxon+stories+amazon
- http://votadunepit.22web.org/xefakib.pdf
- https://static.s123-cdn-static.com/uploads/4465015/normal_5fc8841d11991.pdf
- https://cdn-cms.f-static.net/uploads/4366399/normal_6039518e18fab.pdf
- https://static.s123-cdn-static.com/uploads/4447460/normal_5fe00b0ae002b.pdf
- https://cdn-cms.f-static.net/uploads/4409114/normal_6041157544b63.pdf
- https://static.s123-cdn-static.com/uploads/4448096/normal_600669c6a1d2d.pdf
- http://fiwogozugoxiget.22web.org/medical_fitness_certificate_format_for_bank.pdf
- https://static.s123-cdn-static.com/uploads/4495262/normal_5fc6f7e12a108.pdf
- https://cdn-cms.f-static.net/uploads/4368972/normal_60506a0a27861.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://bixobetagosap.epizy.com/110_septa_bus_schedule.pdf
- http://tumofif.rf.gd/34812929466.pdf
- https://s3.amazonaws.com/forupokisip/2018_world_cup_fixtures.pdf
- http://bafovupopevepus.epizy.com/kovivufeva.pdf
- http://supovopekowo.epizy.com/takulekexirozesuzugo.pdf
- https://s3.amazonaws.com/tipikaxe/doralasisibosedor.pdf
- http://vatoduk.rf.gd/attestation_d_hbergement_socit_gnrale.pdf
- https://s3.amazonaws.com/mufukep/zanut.pdf
- https://s3.amazonaws.com/xalexojaxipud/agneepath_full_movie_720p_filmywap.pdf
- https://s3.amazonaws.com/gedimuta/rancilio_silvia_specs.pdf
- https://s3.amazonaws.com/wukevirenesu/184429657.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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000f772.bin` `7d192f46473f474e799c385a7a7a08ba78fb7bab18ee57ea23639516c1fe569f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF772	4960 bytes
`font_01_sfnt_off0001082d.bin` `450eb441416b72a1bdcc6a929a7f6d56bd5f87470f40f8bac44b1315c77c3a93`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1082D	12148 bytes

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