PDF malware analysis — malicious · d4da3400a65dad59

MALICIOUS

PDF

68.5 KB Created: 2020-11-20 15:58:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05

MD5: b59f5934fc66443c160a89611ff62748 SHA-1: 919e345121732418219a8c029425374c30afaef1 SHA-256: d4da3400a65dad59fa5148970af45c758fa7c844ef2f78786e3d89b352afaceb

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://trafffe.ru/123?utm_term=job+site+box+reviews PDF link annotation
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/lemefofutomapox/23300115296.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ce4694c8-8eb1-4e9b-81b1-9680e2cf99a6/understanding_the_bible_harris.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fe974a37-a62d-48bb-9c20-9320ee65944a/xosasinupok.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6176f137-83f9-4327-aea5-5a0bcb8360b3/bidudebesibiragesovafaxa.pdfIn PDF document text
- https://s3.amazonaws.com/wilugugo/urdu_to_arabic_learning_books_free_download.pdfIn PDF document text
- https://s3.amazonaws.com/wulagisi/solve_linear_equations.pdfIn PDF document text
- https://s3.amazonaws.com/libosokune/minomo.pdfIn PDF document text
- https://s3.amazonaws.com/wajufifenoxuj/basf_corporation_2017_annual_report.pdfIn PDF document text
- https://s3.amazonaws.com/sirilagewuga/vikuzuvadegubivijadumosap.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1489766b-4858-42a4-838a-fad2d641757d/sutikaj.pdfIn PDF document text
- https://s3.amazonaws.com/tumasun/m__apk.pdfIn PDF document text
- https://s3.amazonaws.com/kovezodepugov/deliverance_james_dickey_characters.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_off0000d494.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD494	4788 bytes
SHA-256: `23d56b182343981af44f9e165f1b58373176825b03e439f6bbe2ec02cf6eb87c`
`font_01_sfnt_off0000e501.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE501	9428 bytes
SHA-256: `08ce0ec2874fa883fbc92c51b7a6c8c5987b1a34fa312eb8ef3c3f188358ac0d`

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