PDF malware analysis — malicious · 0a888c2e9a1ee8ef

MALICIOUS

PDF

67.5 KB Created: 2020-12-16 20:42:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 45cdd2d6ca491e6f07e1408ac9456634 SHA-1: b72420c9f6a6e05b565457db05433be9be4c2079 SHA-256: 0a888c2e9a1ee8ef827ef09e50ae846d8ee2f31d1a77acc41659aba7f1b0edc3

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://traffking.ru/123?utm_term=which+or+what+data PDF link annotation
- https://cdn-cms.f-static.net/uploads/4482216/normal_5fc078fa00c52.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4382782/normal_5fae19188493e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4447915/normal_5fa77171deb13.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4416143/normal_5fa0b9eee75a2.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4383566/normal_5f9fc5d5869b3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4411919/normal_5fa10ef849ba0.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421764/normal_5f9bd6aa2c8c6.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4408348/normal_5f9ecaca45198.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/pazatuv/bhajan_video_main.pdfIn PDF document text
- https://s3.amazonaws.com/fuwenoxuzasila/51183780543.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc1945f2bbd7406580b5c60/t/5fca8f0152c55e381a155e63/1607110401967/monitoring_internet_speed_free.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc5c9115e8e827d42af5a10/t/5fd16b797cf94534dc4f2dc6/1607560058252/bugs_bunny_characters_hunter.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_off0000cd0d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCD0D	4924 bytes
SHA-256: `ef41a206dfab4233b5a13469d2d6138108357008e9379ab8c871b4d891a6e684`
`font_01_sfnt_off0000dde1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDDE1	10400 bytes
SHA-256: `52d43e06672b99c18829768f380950bfd6857cd42a2d861efe116a0760e5a0bf`

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