PDF malware analysis — malicious · 9cdf9ce6c40a7c1c

MALICIOUS

PDF

66.5 KB Created: 2020-11-25 08:31:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 224c9b5824d3b48cae8077378b27ad7a SHA-1: d846d765de5560d2045b1fde2f9dd3299dcac4be SHA-256: 9cdf9ce6c40a7c1c39a419341c35ec63b879f9645cd9ca372629b8744132ee9e

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://traffnew.ru/123?utm_term=orchestra+or+symphony+music PDF link annotation
- https://xalipifizipig.weebly.com/uploads/1/3/1/3/131379045/fefew.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4403121/normal_5fa06457f15dd.pdfIn PDF document text
- https://mizavuzozubex.weebly.com/uploads/1/3/4/7/134730625/rasajivivebenepumo.pdfIn PDF document text
- https://zegojipoxe.weebly.com/uploads/1/3/1/0/131069766/9a1dce9c475.pdfIn PDF document text
- https://jojimixumomural.weebly.com/uploads/1/3/4/4/134438106/joselevulesazo-defodu-dijamutikeva-xuminozakadet.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/zetare/student_absenteeism_theory.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9ba3e8fb-df1b-41aa-b33a-b9aecde7797a/lubiwawud.pdfIn PDF document text
- https://s3.amazonaws.com/suxiweke/enigma_otiliei_carte.pdfIn PDF document text
- https://s3.amazonaws.com/vipuxafol/98770140617.pdfIn PDF document text
- https://s3.amazonaws.com/desenaz/naruto_vs_bleach_unblocked_76.pdfIn PDF document text
- https://s3.amazonaws.com/jozaponi/73956428372.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/bf4c843a-9886-4af6-b5d6-431898ad7586/19391117908.pdfIn PDF document text
- https://s3.amazonaws.com/xoferuzu/brno_hlavn_ndra_informace.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_off0000c774.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC774	5272 bytes
SHA-256: `1305a5290c867333bde7e70609b32b672075afd95b9a4148a29c7e7eafc7845e`
`font_01_sfnt_off0000d93e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD93E	10876 bytes
SHA-256: `cd46508fbd96727cfc7505801413094ca5b09757d7ee4fb1efff530c6520391d`

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