PDF malware analysis — malicious · 95b0233844a499a9

MALICIOUS

PDF

71.3 KB Created: 2020-12-04 03:53:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 34bc64610423f322e8042e3aea4f753e SHA-1: 9d4e7ff7881cb4b1b852d0b9b9a6ad63c7ea2f6a SHA-256: 95b0233844a499a937a31ac5aa8c093a30a77946ec7967ce9f9009fcfe12ce41

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://trafffi.ru/123?utm_term=sewing+for+dummies+pdf+free+download PDF link annotation
- https://cdn-cms.f-static.net/uploads/4379359/normal_5f8bf23301d16.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/94d0d74a-30a2-45eb-a584-114e93fc7403/69476925771.pdfIn PDF document text
- https://s3.amazonaws.com/matogapibelifiv/add_checkmark_to_excel_sheet.pdfIn PDF document text
- https://s3.amazonaws.com/jajoxulabojaso/velomuwog.pdfIn PDF document text
- https://s3.amazonaws.com/rakabexozu/men_s_underwear_guide.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/104141f5-f1e9-4285-bbea-2131fbc456be/judeperenek.pdfIn PDF document text
- https://s3.amazonaws.com/dapekufoxiraku/river_avon_scotland.pdfIn PDF document text
- https://s3.amazonaws.com/mokamoba/attention_guitar_tab.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f6c011d7-2809-4be9-9c9e-0b8ef0c1eee3/leluvofetidat.pdfIn PDF document text
- https://s3.amazonaws.com/sazomo/5889916377.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7da3e6f1-169b-4b1a-8354-0958ff429d91/guia_de_matematicas_para_universidad.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_off0000d9c9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD9C9	5556 bytes
SHA-256: `bf422c5de21f2abe00b92098b31fdfba5da1582639bc7e8ce5865e902465841e`
`font_01_sfnt_off0000ecb4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xECB4	10424 bytes
SHA-256: `de8e7115ffafcebab7d9170a4ef8ed1ddd36f491da45df0c65807a22959ac58c`

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