PDF malware analysis — malicious · 30d4af4309ee371d

MALICIOUS

PDF

75.4 KB Created: 2021-04-04 05:27:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b202c75209642e44cd22bb424badc845 SHA-1: 74b97648b78c879e6a68b3f3a55c578bc2bf04e1 SHA-256: 30d4af4309ee371d07619d459731222b06996cfa26e8933c686e846cf2951c79

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF containing an embedded URL that points to a suspicious domain, identified by heuristics as potentially malicious and flagged by ML classifiers and ClamAV. The document body, though heavily obfuscated, suggests a lure related to a game, likely to trick users into visiting the malicious URL. No scripts were extracted, but the presence of external URIs indicates an attempt to redirect the user to a malicious resource.

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/wix?keyword=a+miraculous+guide+to+gwent+skellige
- http://bijipejip.iblogger.org/naxuwizixemukop.pdf
- http://1ux.site/dork_diaries_156m05b.pdf
- https://cdn-cms.f-static.net/uploads/4470387/normal_6035cf3bb7dc8.pdf
- http://sakipewo.22web.org/chinese_and_english_nursery_rhymes.pdf
- https://cdn-cms.f-static.net/uploads/4385038/normal_60508db4d6575.pdf
- https://cdn-cms.f-static.net/uploads/4384155/normal_601465f85a684.pdf
- http://instgramcopyrightdispute.com/422183614866thf8.pdf
- https://cdn-cms.f-static.net/uploads/4384644/normal_606031a26362c.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/pisedij/21378937402.pdf
- https://s3.amazonaws.com/bezorito/casio_fx_cg10_radians_to_degrees.pdf
- https://s3.amazonaws.com/pisedij/cuales_son_los_signos_que_se_atraen_sexualmente.pdf
- https://s3.amazonaws.com/begijufadi/hagerman_idaho_fishing_report.pdf
- https://s3.amazonaws.com/tojazudibumogab/engine_code_p2106.pdf
- https://s3.amazonaws.com/lomiwexuva/82411179751.pdf
- https://s3.amazonaws.com/vexosafugunu/vowejitiponepuguwamako.pdf
- https://s3.amazonaws.com/xupizewuxere/navy_email_signature_block_format.pdf
- https://s3.amazonaws.com/mokuwanibof/2020_toyota_camry_xse_v6_black.pdf
- https://s3.amazonaws.com/viregujipowuru/how_to_reset_my_frigidaire_dehumidifier.pdf
- http://kupomegofoku.epizy.com/how_isotopes_decay.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_off0000e912.bin` `adf806348a05bee0e3e5aaa3387900680ceb71497cf0cd8927a78622b104f834`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE912	5404 bytes
`font_01_sfnt_off0000fb68.bin` `23e2adda4e20818ee9ed398ce9213a8a8dcdb773332668f63cf5b0a581c1d52d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFB68	10940 bytes

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