PDF malware analysis — malicious · 8a3f32b2922bf049

MALICIOUS

PDF

71.9 KB Created: 2021-01-07 03:06:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 5f4977ea5fc2a959b5b7f00d6090f371 SHA-1: cc1107c49589c41c887d4e512dedccda217845b9 SHA-256: 8a3f32b2922bf049a1688025fc183d15c85618aa99b5c400bb13001c8f02b979

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 0.9997

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://trafftec.ru/123?utm_term=msi+ms-7778+ver+1.0+bios PDF link annotation
- https://cdn.sqhk.co/fedovusig/gjqhgii/47908701042.pdfIn PDF document text
- https://cdn.sqhk.co/lolitubafo/ihatsQt/96846169807.pdfIn PDF document text
- https://cdn.sqhk.co/fupipevu/mQjgohj/crash_cars_videos.pdfIn PDF document text
- https://gitinegu.weebly.com/uploads/1/3/4/6/134648864/ccdfbe3297a9b.pdfIn PDF document text
- https://kusavavatixe.weebly.com/uploads/1/3/4/8/134878613/mivejijug.pdfIn PDF document text
- https://cdn.sqhk.co/zotipimesaza/tihgf8y/61847718950.pdfIn PDF document text
- https://cdn.sqhk.co/ruwonumatag/eqHFjet/bmx_bike_race_apkpure.pdfIn PDF document text
- https://cdn.sqhk.co/lilomovetum/ajbharU/zoom_cloud_meetings_app_download_for_pc_free.pdfIn PDF document text
- https://jufavufopu.weebly.com/uploads/1/3/4/3/134340263/5205560.pdfIn PDF document text
- https://ronesina.weebly.com/uploads/1/3/4/7/134707074/vezezosexeniwimunaxa.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/lewuli/dawinukoxosusa.pdfIn PDF document text
- https://s3.amazonaws.com/tetenifeme/discussion_lab_report_measurement_and_uncertainty.pdfIn PDF document text
- https://s3.amazonaws.com/tamobalasu/minecraft_enchanter_ftb.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_off0000db72.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDB72	5324 bytes
SHA-256: `f25a948bf4fd527a12b40a4576bb1b0a1377c2e5ac109bb975daf70e710db736`
`font_01_sfnt_off0000eda4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEDA4	10992 bytes
SHA-256: `e301a9c111736a8cc480708ec52239f6316c6959b0677513d53289baabafa025`

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