PDF malware analysis — malicious · eb9cc74a759178ba

MALICIOUS

PDF

71.6 KB Created: 2021-02-12 21:40:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13

MD5: 3ea52002f4330a535bb6cda244bdc33e SHA-1: 5c5ec83530396616924163f3f6c3a3c05c8d284d SHA-256: eb9cc74a759178ba2ee1464fc57f9bcd2d8c53ca8cbdd3b0f41abc953285a199

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 URL pointing to a suspicious domain, likely intended to trick the user into visiting it. While no scripts were directly extracted, the PDF structure and embedded URI suggest an attempt to deliver a malicious payload or redirect the user to a phishing site.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

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://bologen.ru/wix?keyword=minnesota+history+day+2020 PDF link annotation
- https://cdn-cms.f-static.net/uploads/4377909/normal_5fdb26b5c4e21.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4450864/normal_5fecfe7469550.pdfIn PDF document text
- http://xavukagidasali.iblogger.org/javascript_template_literal_array.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4412158/normal_5fda87541d93b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4500430/normal_600e9489703c6.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/farowug/85792111240.pdfIn PDF document text
- http://darewuxopasog.rf.gd/gulitetobapigu.pdfIn PDF document text
- http://murarefap.epizy.com/vodowilonomexufeli.pdfIn PDF document text
- https://s3.amazonaws.com/kofabube/37613484708.pdfIn PDF document text
- https://s3.amazonaws.com/falufusu/whirlpool_cabrio_agi_washer_manual.pdfIn PDF document text
- https://s3.amazonaws.com/pidufozu/lands_end_return_policy_uniforms.pdfIn PDF document text
- https://s3.amazonaws.com/turip/accessibility_checker_fors.pdfIn PDF document text
- http://disefubukub.rf.gd/fuzigibubu.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_off0000dd06.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDD06	5264 bytes
SHA-256: `81ec96fffed75dc161e53dd59e834eebeff259e309ab234a5f7b5f15709d639c`
`font_01_sfnt_off0000eeee.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEEEE	10068 bytes
SHA-256: `ae1e39913ed0855dd9a10085636d60b823785ac4074eb7a36264cd7f37dcf6f1`

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