PDF malware analysis — malicious · 2fd5bd6e84ed5e4e

MALICIOUS

PDF

71.7 KB Created: 2021-02-04 06:50:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16

MD5: 6fd31599ae8741035158d47576984186 SHA-1: ec5f05deaf3755983ddbcd66bda125913f4b082a SHA-256: 2fd5bd6e84ed5e4eb67d7f70a5e32064304c552d1a9ded15104545dedf921395

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF document identified as malicious by ML classifiers and ClamAV. It contains an embedded URL that leads to a suspicious domain, likely intended for phishing or malware distribution. The document body, though heavily obfuscated, suggests a lure related to a sale, aligning with phishing tactics.

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://crophysi.ru/123?utm_term=five+lined+skink+for+sale PDF link annotation
- https://cdn.sqhk.co/bowawugafux/Jaggqb7/axis_360_camera_default_password.pdfIn PDF document text
- http://neliwiveles.22web.org/44946358444.pdfIn PDF document text
- http://rentline.pro/homework_rubric_samplezu4sd.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4422884/normal_5fd9cb9977b21.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4401519/normal_5fdef8041ffd2.pdfIn PDF document text
- http://ru-1.casa/57387805940nv3zw.pdfIn PDF document text
- http://olimpcargo.ru/sky_rolling_ball_games_unblockedmi2sx.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/tuletivotarupu/nadeweruzuvokisusolem.pdfIn PDF document text
- https://s3.amazonaws.com/pajukovuxetu/90155041325.pdfIn PDF document text
- https://s3.amazonaws.com/wujodibu/webovixe.pdfIn PDF document text
- http://setowibuvi.epizy.com/26239136686.pdfIn PDF document text
- http://pisasegobure.epizy.com/29136936462.pdfIn PDF document text
- http://ditajizuru.rf.gd/superconductivity_bcs_theory.pdfIn PDF document text
- https://s3.amazonaws.com/vazisi/tukagesubus.pdfIn PDF document text
- https://s3.amazonaws.com/tarizirefevifab/badovolakenem.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000dc1e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDC1E	4980 bytes
SHA-256: `47f2f627af5e6c4966988b97dad2f513cd60a1dd5164b67c0213c4130bd775c5`
`font_01_sfnt_off0000ed21.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xED21	10704 bytes
SHA-256: `d567a2deb2c6732662135e430d67e7849b5eaf80e383ad463de69da9578e0748`

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