PDF malware analysis — malicious · 67b468c57ca2f572

MALICIOUS

PDF

60.9 KB Created: 2020-12-18 00:50:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05

MD5: 70c670ef8b8d1ddea445d3609d09bee0 SHA-1: 21776a0c4ac29df23656068f1fd3a8c4bf4694ac SHA-256: 67b468c57ca2f572c185106f61344ebeee2a247fb7347e8a474a8178d2d7c93d

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 0.9994

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://trafffe.ru/strik?utm_term=japanese+from+zero+pdf+download+reddit PDF link annotation
- https://cdn-cms.f-static.net/uploads/4413705/normal_5fae9f1e7b50a.pdfIn PDF document text
- https://bosogafowobalo.weebly.com/uploads/1/3/4/6/134614472/2333990.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4415065/normal_5fa1e877eb564.pdfIn PDF document text
- https://voligamaxe.weebly.com/uploads/1/3/4/5/134512074/1954919.pdfIn PDF document text
- https://jurujixomegisi.weebly.com/uploads/1/3/4/7/134745805/liwakogapikug_sokizemokebap_wivokoxoxak_dazitet.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4471488/normal_5fbcff045ef16.pdfIn PDF document text
- https://nafogoke.weebly.com/uploads/1/3/4/7/134776139/3233214.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/27fc90c9-702c-434a-aaa2-81ed7da44b11/legend_of_grimrock_mods.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fd723abe-866c-4bfe-bdf8-c5644d4ab5b6/kaisi_yeh_yaariaan_episode_297.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2c3bcc38-aa0b-4287-9d9c-610e0c646d9d/north_face_base_camp_duffel_small.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_off0000b14b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB14B	5320 bytes
SHA-256: `e9d6b858727a8e4ae080646d2e873c7d36852571e4572c60cbc0cdc8dbd7fb9c`
`font_01_sfnt_off0000c369.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC369	10588 bytes
SHA-256: `dabd5ec7c9eeee8b2869a90fe98033b64c9867368b71cd04739e576406d2c0ee`

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