PDF malware analysis — malicious · 541fadfb29751b13

MALICIOUS

PDF

75.3 KB Created: 2020-11-10 20:51:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: bb2a1923923d8f3ca69338a3b460da9c SHA-1: 29aae850635cb313465974a2fd2e3f25f223261e SHA-256: 541fadfb29751b137ea90d7e62d0d03d3cc76553a4f74e49b36530b24f16af5d

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://trafficel.ru/strik?keyword=trueflame+solar+torch PDF link annotation
- https://pafasuletelaw.weebly.com/uploads/1/3/4/4/134447528/mipoti.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379626/normal_5f9ebbe5c9f88.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4386087/normal_5fa164ff69c36.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4407996/normal_5fa6cd0d6b037.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4388157/normal_5fa0264dacc39.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4372383/normal_5f91478c8593c.pdfIn PDF document text
- https://feziriwavejoli.weebly.com/uploads/1/3/4/0/134096108/7306943.pdfIn PDF document text
- https://kufuzuve.weebly.com/uploads/1/3/4/5/134589172/fegoto.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/nisoxow/rexaz.pdfIn PDF document text
- https://s3.amazonaws.com/mozirolinitaje/is_fish_a_nonrenewable_source.pdfIn PDF document text
- https://s3.amazonaws.com/fewifuwu/36941126649.pdfIn PDF document text
- https://s3.amazonaws.com/gopuze/74824656878.pdfIn PDF document text
- https://s3.amazonaws.com/netinuwa/yaesu_ft-991a_drivers.pdfIn PDF document text
- https://s3.amazonaws.com/litunux/18988852823.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_off0000e9c7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE9C7	5072 bytes
SHA-256: `efaf6bf1c8e93de83730b4206d02a4685a43327fea4ace0c922ae89e5c6c21fb`
`font_01_sfnt_off0000fad8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFAD8	10844 bytes
SHA-256: `52de63ac55d00bdec1b6e9ff076101cd29d214ab73eae8a5d34fc76814ce1d1e`

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