PDF malware analysis — malicious · be44aab64e8c40c3

MALICIOUS

PDF

66.4 KB Created: 2020-11-18 08:45:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 7f0c38508fd58d0add0e51eeab206614 SHA-1: d4bb9ae459d9737f4104db9b270b91c848769155 SHA-256: be44aab64e8c40c3ea15961e77469ec0f80a00b36033efdc04f9d9bd11f28284

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-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://trafficel.ru/123?utm_term=amigo+brothers+textual+activities PDF link annotation
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/wulotugadag/jorgenson_metal_rolling.pdfIn PDF document text
- https://s3.amazonaws.com/xugigabitulu/allure_of_the_seas_itinerary_2019.pdfIn PDF document text
- https://s3.amazonaws.com/jixerubowi/polububonisijafazutelazaf.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4e89b315-18a0-4c73-bd71-68ac101ab4f2/parallel_lines_proofs_worksheet_with_answers.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6404fa51-45a4-480f-8f4b-03c8390ed14f/ruxadefume.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d7d7021b-04d9-45b4-a3d0-787b5fd44fbb/nuance_professional_converter.pdfIn PDF document text
- https://s3.amazonaws.com/tibanepoxilibud/resignation_letter_template_word.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/162f2fcd-ace2-4dc6-b8ae-b383ee0100e7/57617066454.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2ff2c28a-7d62-4c8d-9536-6a24d4960d92/75384878380.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b364e9ce-6b63-4eac-8852-191ebbf083fc/sabomoziwuwet.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/dbc0bad2-a579-4212-acdc-d56013cabfe0/75020053090.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_off0000c6fa.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC6FA	5468 bytes
SHA-256: `f347f3615891c2ccfe6b71444adefd82b349d21655e35eea51adc7e8c654bcfb`
`font_01_sfnt_off0000d974.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD974	10456 bytes
SHA-256: `9441807ff6bf650fa239dcc4f008251a37ffd75add11dae1cc72ca592f5916e8`

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