PDF malware analysis — malicious · 9e766fbb5e86c0ea

MALICIOUS

PDF

66.0 KB Created: 2020-11-11 21:12:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31

MD5: 8be88a8637a0c8ee826b3162c4b32872 SHA-1: 1e36fbce1acdb2f4a3f879bff6a44b314c356fd5 SHA-256: 9e766fbb5e86c0ea6beaeef750f99b7487786cfdb4d0e1bb1a4f1ce63bd10d0d

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that directs users to a suspicious domain, likely for credential harvesting or malware distribution. The document body, though heavily obfuscated, contains text fragments that suggest a notification or informational pretext.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

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://trafficel.ru/aws?utm_term=je+vous+informerons+d%25C3%25A8s+que+possible PDF link annotation
- https://cdn-cms.f-static.net/uploads/4368481/normal_5faa0e4bb7112.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366665/normal_5f873e7b63b08.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4386080/normal_5f94e8b0e7975.pdfIn PDF document text
- https://tumixivig.weebly.com/uploads/1/3/1/6/131636813/removikuded.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4393485/normal_5f93fa3866415.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4447079/normal_5fa6d24bc7dc4.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366377/normal_5f8744b447fba.pdfIn PDF document text
- https://zixatemanareku.weebly.com/uploads/1/3/4/4/134472678/zuwozu-nabewo-tomokuki.pdfIn PDF document text
- https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/8709547.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/8287d944-bbb6-4f95-a064-4fb4ef1ddb09/60202636340.pdfIn PDF document text
- https://s3.amazonaws.com/najubu/600_bce_to_600_ce_europe.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_off0000c2d3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC2D3	5432 bytes
SHA-256: `439baaa3a166e7bd62a9516a60bc28fd2b6a1d908a2ba857b18049290fb62410`
`font_01_sfnt_off0000d4f5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD4F5	11624 bytes
SHA-256: `1c4f510e7c653a7ab29953407d674b8f83fcca3b80a2028b4cca0ea7f0445932`

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