PDF malware analysis — malicious · 2c7f4daa39640da3

MALICIOUS

PDF

76.4 KB Created: 2021-03-07 05:58:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 2fdeb30c7794ec39d9ca57e8d4b444b6 SHA-1: 7c4c25534c10518ffed785431403c89eda5ec925 SHA-256: 2c7f4daa39640da32e28dab15dd99109e6e7fe5940d714a786b3e5a7da8fb06c

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 URL pointing to 'kuzutuzo.ru', which is likely a phishing or malware distribution site. The document body, though heavily obfuscated, suggests a lure related to vehicle engine reliability to entice users to click the malicious link.

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://kuzutuzo.ru/aws?utm_term=how+reliable+is+the+dodge+4.7+engine
- https://static.s123-cdn-static.com/uploads/4380073/normal_6007cc79030d4.pdf
- http://timelessdecorum.com/short_story_literary_elements_test_answersql9ji.pdf
- https://static.s123-cdn-static.com/uploads/4459027/normal_5ff0ea8f2aeb7.pdf
- http://menbp.online/leminafub3hpwr.pdf
- http://lnstagramcopyrightcenter.com/advanced_balloon_twisting_instructionsl8l3u.pdf
- https://static.s123-cdn-static.com/uploads/4416939/normal_5ffa7ac1c63f3.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/mudurixo/63758065586.pdf
- https://s3.amazonaws.com/lebejos/faces_edges_and_vertices_worksheet_answers.pdf
- https://s3.amazonaws.com/nuvukivaxiren/leather_moccasin_template.pdf
- https://s3.amazonaws.com/bejikefowu/winogiko.pdf
- https://s3.amazonaws.com/sesijesule/ashleigh_jordan_guide.pdf
- https://s3.amazonaws.com/makumapikeze/arby_s_blt_nutrition_information.pdf
- https://s3.amazonaws.com/zodawanuror/root_unlock_my_android_apk_free.pdf
- https://s3.amazonaws.com/bisegilupuf/kokigarowoxugesowi.pdf
- https://s3.amazonaws.com/tawovojo/69834588123.pdf
- https://s3.amazonaws.com/tumuzu/95175493410.pdf
- https://s3.amazonaws.com/nedijowewoded/sheetrock_around_shower.pdf
- https://s3.amazonaws.com/jarirotexab/lost_tribe_of_the_sith_purgatory.pdf
- https://s3.amazonaws.com/petubapizo/boragude.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_off0000edcd.bin` `2f89cff19ec8c64461b9be706a1803febddded89f78cc128fa0b4d700b67c93b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEDCD	5480 bytes
`font_01_sfnt_off00010086.bin` `43166af091e49edcce9932d629c3f1b2df88e829cdd4a50c0ede40cf29f194e6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10086	10408 bytes

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