PDF malware analysis — malicious · 717251fbd5a94915

MALICIOUS

PDF

77.9 KB Created: 2020-12-27 15:49:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: c289056886f14fde62c21f8eb0c7fa62 SHA-1: 5c13ee0d28303629a460819405bbdb531bd51f49 SHA-256: 717251fbd5a94915c0c20f151ecf9712e60b0618eea7df01e54e3e14ba7498ff

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was detected as malicious by ClamAV and an ML classifier, with a high risk score. It contains an embedded URL that directs users to a phishing site disguised as a search result for a popular dating app. The document body, though heavily obfuscated, contains text related to the URL, suggesting a social engineering attempt to trick users into visiting the malicious link.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

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://trafficel.ru/strik?utm_term=okcupid+app+for+android
- https://cdn.sqhk.co/lirerafi/bmgfihb/strategy_legion_turn_based_strategy_tactics.pdf
- https://cdn.sqhk.co/jumifokujuje/eMxvicc/the_oregon_trail_american_settler_java_320x240.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://uploads.strikinglycdn.com/files/4fd6fdf2-7526-4c4e-8d34-8e2125395a90/vetugexabuzetemi.pdf
- https://s3.amazonaws.com/jolituzoji/57962125902.pdf
- https://uploads.strikinglycdn.com/files/4e240197-27b6-4c68-bfd0-7b0dbefbd2d7/kapamanumabejudomoxe.pdf
- https://uploads.strikinglycdn.com/files/a43864b6-7fce-4d8a-bdb5-c56eec9899bd/44204595929.pdf
- https://uploads.strikinglycdn.com/files/7f650c95-2c02-44de-ba01-f661da1b2ff8/amazing_spiderman_2_megashare.pdf
- https://s3.amazonaws.com/nezanurugega/measles_outbreak_investigation_report.pdf
- https://s3.amazonaws.com/wusone/lamborghini_song_free.pdf
- https://uploads.strikinglycdn.com/files/bd7fc6d8-0a46-481a-b0ee-8b4db70356c5/mivivefokivakaboribe.pdf
- https://uploads.strikinglycdn.com/files/a3aa6d65-52b6-4c6d-b582-5844629c542e/capital_city_classic_2020_helena_mt.pdf
- https://uploads.strikinglycdn.com/files/764f2873-6915-4cad-9b6c-b617d3643df4/32363120976.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000e88a.bin` `47dc4ce3a71b1477795f68a78cd1b751eaf729c097cef8e4de3137d11f711e5d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE88A	4716 bytes
`font_01_sfnt_off0000f899.bin` `114085e861b6cbc88cb95df347aa1e6cdaac002e7331ad5afbf56f5d32a0b65c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF899	10476 bytes
`font_02_sfnt_off00011c6c.bin` `0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11C6C	4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.