PDF malware analysis — malicious · 58f386abcce30921

MALICIOUS

PDF

74.7 KB Created: 2021-02-21 07:42:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11

MD5: 083fd1593fe1cbd11b4f4fa52e9f8116 SHA-1: 1f91596af95574c82e6fc1419f088f5438eb61ee SHA-256: 58f386abcce3092197c2708e62f49fc07841bff4a222bdf1829605733b6fff77

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that mimics a search result, likely intended to trick the user into visiting a malicious site. ClamAV and ML classifiers strongly indicate maliciousness, and the PDF_URI heuristic confirms the presence of an external URI. While no scripts were explicitly extracted, the nature of the PDF and the embedded URL suggest it's designed for phishing or malware delivery.

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://jottigo.ru/123?utm_term=tokyo+ghoul+season+1+filler+list PDF link annotation
- https://cdn.sqhk.co/tetolonul/hhixje3/guzotedovuwati.pdfIn PDF document text
- http://dihtyar.online/windows_7_build_7601_not_genuinexyda5.pdfIn PDF document text
- http://fodosokidorakig.22web.org/street_fighter_4_movie.pdfIn PDF document text
- https://cdn.sqhk.co/rapawaferew/dhhhhjd/learn_the_whip_nae_nae_dance.pdfIn PDF document text
- https://cdn.sqhk.co/kovezozeseg/bgjhidK/jusesanupulasonatarudotup.pdfIn PDF document text
- http://myimperfectmomlife.com/nawomaxuxuzitugafj878.pdfIn PDF document text
- https://cdn.sqhk.co/virapazetif/gQ7Daig/amazon_driver_careers_near_me.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://bonipoja.epizy.com/do_marine_officers_take_the_asvab.pdfIn PDF document text
- https://s3.amazonaws.com/mexesazaxasa/deshabhimani_aksharamuttam_quiz_2019_questions_and_answers.pdfIn PDF document text
- https://s3.amazonaws.com/sewamos/31673667496.pdfIn PDF document text
- https://s3.amazonaws.com/bejokazemur/2550811121.pdfIn PDF document text
- http://davafegi.epizy.com/63706191086.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_off0000e41a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE41A	5196 bytes
SHA-256: `ad2e6e9c0d3f33304424cba5d16836308314f5c29641d6d3b67a114065813e49`
`font_01_sfnt_off0000f5d9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF5D9	11844 bytes
SHA-256: `775b3b33a07e232dd1d5aa981f7070a1d007d0aa0a491ab7bf9f92548902c35c`

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