PDF malware analysis — malicious · 31490abfeeecd597

MALICIOUS

PDF

82.0 KB Created: 2021-03-20 19:26:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 85994ccfe82cc3664be5d1fa83933433 SHA-1: 233f5c3301e984dba07c0e51b7e29e23a2127803 SHA-256: 31490abfeeecd59714509a8d6c10dea6137884db1b4d7d9cdb10c39048aa8e6e

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'https://leonvi.ru/wix?keyword=minimum+age+to+work+at+ulta', which is likely part of a phishing or credential harvesting attempt. No scripts were extracted, but the presence of the malicious URL strongly suggests a phishing attack.

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://leonvi.ru/wix?keyword=minimum+age+to+work+at+ulta
- http://ecosbor.net/jobs_social_media_manageraypqk.pdf
- http://kiritisivasol.mywebcommunity.org/como_editar_un_archivo_srt.pdf
- http://gatorama.fun/what_is_patient_autonomyl8ijp.pdf
- http://pogekoxuw.mygamesonline.org/91872395920.pdf
- http://bathforlegs.xyz/general_ticket_booking_time_irctcb5o03.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/jotizifime/what_do_colors_mean_in_marketing.pdf
- https://s3.amazonaws.com/pilazi/jajemevezugivuxogetiwaxi.pdf
- https://s3.amazonaws.com/tamovagag/muredelogadi.pdf
- https://s3.amazonaws.com/gowupuzokowuxes/decadry_cd_templates.pdf
- https://s3.amazonaws.com/xasovewipeje/2018_malibu_led_lights.pdf
- https://s3.amazonaws.com/wovisak/76024718710.pdf
- https://s3.amazonaws.com/jukezeluf/tufoxazusuxafeledefutedum.pdf
- https://uploads.strikinglycdn.com/files/7630cfca-898e-4fc4-9187-5495c26aeb11/grade_11_electric_circuits_questions_and_answers.pdf
- https://s3.amazonaws.com/pafiganovavi/texabosewabolezuz.pdf
- https://uploads.strikinglycdn.com/files/a124dbae-22c4-4096-a29d-934b5594cc88/71765648882.pdf
- https://s3.amazonaws.com/dugibabafod/69573587591.pdf
- https://s3.amazonaws.com/wujapu/archicad_21_manual.pdf
- https://s3.amazonaws.com/mamukawaxatali/62677242471.pdf
- https://s3.amazonaws.com/nafoxuda/44265578516.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_off000102b1.bin` `2bb7d14355785223695e472d2221d4ed44bd6f462703bc90ebd4a1065bf1a164`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x102B1	4988 bytes
`font_01_sfnt_off000113b0.bin` `9a31581fe1b821a0796f1e51c42234134ce7d38580f30fa304b68f21a273bf1b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x113B0	11500 bytes

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