PDF malware analysis — malicious · b7e3d77da5ce6ae8

MALICIOUS

PDF

72.2 KB Created: 2021-03-21 11:12:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 026434ac8db7894103c78addc8fcac43 SHA-1: 23fd12aa67648777e2aa4a499d606a2723ba16ad SHA-256: b7e3d77da5ce6ae8ed0f1ca31413e9caa1144405ca8c1b9e27fed37f6e1b87af

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that masquerades as a user manual, likely intended to trick users into visiting a malicious site. ClamAV and ML classifiers strongly indicate malicious content, and the presence of embedded URLs points towards a phishing or malware distribution attempt. No scripts were extracted, but the PDF structure and embedded URI are sufficient indicators of malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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://midufefew.ru/wix?keyword=nest+pro+user+manual
- https://cdn.sqhk.co/jigavozef/qugeDqo/54481781229.pdf
- https://cdn.sqhk.co/pipidopowewe/WihhatE/33956614221.pdf
- https://cdn.sqhk.co/waxulimelu/ngjDBia/lagu_besomorph_monster.pdf
- https://cdn.sqhk.co/padasagam/ihc2Aua/nasa_spacex_crew_dragon_splashdown_uk_time.pdf
- https://cdn.sqhk.co/mogidamiko/ugcBLQk/76249014371.pdf
- https://cdn.sqhk.co/vopovaroxamo/hAjguQF/lifulinigopoxu.pdf
- https://cdn.sqhk.co/fumodolanes/d9hazif/bucket_list_travel_company.pdf
- https://cdn.sqhk.co/vixuwegijelo/XXhfJjg/57031249659.pdf
- https://cdn.sqhk.co/tarudifirew/fgcgdij/xerojodorelu.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/tomaxade/club_controller_amapiano_remix_song.pdf
- http://tobizexajivuvob.epizy.com/simone_de_beauvoir_essays.pdf
- https://uploads.strikinglycdn.com/files/066c459f-d299-4664-8b7f-a71814b48446/xfinity_remote_codes_for_onn_roku_tv.pdf
- https://uploads.strikinglycdn.com/files/6f6a4d44-f4db-4ff5-a921-8f4bf411e9be/xetobikumisubax.pdf
- http://jixojamut.epizy.com/blouse_silai_video.pdf
- https://s3.amazonaws.com/jiguwuzobozobaz/90378200841.pdf
- https://uploads.strikinglycdn.com/files/7fe18193-7e83-43f1-9398-08ad5df0bb4f/is_swat_team_full_time.pdf
- http://mirepili.epizy.com/bubba_blue_cot_sheet_review.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_off0000e0bc.bin` `620d9fbd2d25f4a65696735eac9d51e36b7c74449632abacf313d103e065b8ec`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE0BC	4936 bytes
`font_01_sfnt_off0000f16b.bin` `857c195cc624069876b92388afe7c7cb6981956bdcb4872e1e235daee0265658`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF16B	10112 bytes

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