PDF malware analysis — malicious · c085fa8ed0870502

MALICIOUS

PDF

59.3 KB Created: 2020-12-19 11:33:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18

MD5: e71fb540fb9c16b5fe42ddca1df5902b SHA-1: a8e2bf2f10ccc15d01e608a45a6dbe664fae7883 SHA-256: c085fa8ed087050255a18d7f92b25b03e99cfca5d11707adae14ea3d0c65f371

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 0.9993

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/aws?utm_term=accounting+and+financial+management+pdf+notes PDF link annotation
- https://zinuwikisabarek.weebly.com/uploads/1/3/4/6/134679236/51fcea45.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/e4c19de7-b8b4-4fb6-b142-0abcd3202b93/engineering_economy_6th_edition.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/971c4bc2-aaa0-48fb-8dc9-808740a8e9b6/dark_cloud_strategy_guide.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e18489cf-af84-41c4-b1b2-ed6c76fb2b52/lilonidakozilogaforawoke.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/69c40b73-5ede-48e4-8990-c27fa0154c4d/bajivulilokopugoveb.pdfIn PDF document text
- https://s3.amazonaws.com/ragejufa/barcelona_map_tourist.pdfIn PDF document text
- https://s3.amazonaws.com/wisuw/bitatuxebu.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc2f3b9a5bc066edfb302dc/t/5fcbb5d2a0b42e3566ae5ef1/1607185875399/beat_your_boss_unblocked_games.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc0e99fa13a450babf41659/t/5fd21b51880fa23343dbaafc/1607605074776/93249800003.pdfIn PDF document text
- https://static1.squarespace.com/static/5fce4abc06af1e3f448d5686/t/5fd20b950f163860c7b4f1d6/1607601049172/baliwilo.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_off0000ab31.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAB31	5368 bytes
SHA-256: `70aa7cd8f4d0e089d8b455a39780ac369a71e574de786e838da2a6ebc25320b1`
`font_01_sfnt_off0000bd6e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBD6E	9668 bytes
SHA-256: `90d8f93d8951255d88b9de2e8c149350589c6327002abe87a5871e67a08e3e75`

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