PDF malware analysis — malicious · be17e55be8c7dd16

MALICIOUS

PDF

101.4 KB Created: 2021-03-18 18:10:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: cb7c0adae7c9893fa702682c99d13857 SHA-1: 74bf4bf70c5aec3827fbdee6de57a5cac4556aee SHA-256: be17e55be8c7dd16d290b986d4f94f71e36d492798e22239023a00ded1d6b3ef

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that directs users to a suspicious domain, likely to host a phishing page or download further malware. The document body, though heavily obfuscated, appears to be related to search result content, reinforcing the phishing lure.

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/wix?keyword=wheel+of+fortune+answers+landmark
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/3396c74f-20ee-40d8-9d5c-ede014df810d/nunamowiganakivisogu.pdf
- https://s3.amazonaws.com/gizonukorad/mk11_krypt_forge_guide.pdf
- https://s3.amazonaws.com/towakog/56602028361.pdf
- https://s3.amazonaws.com/vebenok/risedotaxifirezipigunuku.pdf
- https://uploads.strikinglycdn.com/files/4594b16c-44ee-4968-9675-e0b975c24dd2/rheem_tankless_water_heater_warranty.pdf
- https://uploads.strikinglycdn.com/files/7e8a313d-e78e-4d8e-b47d-a2e80fc98154/rca_galileo_pro_reviews.pdf
- https://s3.amazonaws.com/fogibi/candy_crush_saga_game_install.pdf
- https://uploads.strikinglycdn.com/files/724c1858-0dcc-4913-aa98-df4ca3392f68/foxafina.pdf
- https://s3.amazonaws.com/kegovev/acca_f1_syllabus.pdf
- https://s3.amazonaws.com/midaguvimabof/chrome_pc_setup.pdf
- https://s3.amazonaws.com/bejikefowu/lifetime_90000_basketball_hoop_review.pdf
- https://s3.amazonaws.com/sazixipame/pakikikexajim.pdf
- https://s3.amazonaws.com/woberiz/whistler_radar_detector_z-19r_reviews.pdf
- https://s3.amazonaws.com/genijusemu/how_to_change_stitch_length_on_kenmore_sewing_machine.pdf
- https://s3.amazonaws.com/jalasilunaz/sidovuzunawejawirakuxo.pdf
- https://s3.amazonaws.com/jotogorurekuro/understanding_business_and_personal_law_chapter_4.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_off00015343.bin` `28d2def073402b28744b0deb63e85eaa1ddba7de455b170e53ce3234d3e129a2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x15343	5316 bytes
`font_01_sfnt_off00016542.bin` `688bfe31dc170e5ee748ffcb6e5fbdc097244e93f3e4cb644d591a13a18baf40`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x16542	10428 bytes

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