PDF malware analysis — malicious · 97c2f4daeb0b9469

MALICIOUS

PDF

59.0 KB Created: 2020-12-20 19:49:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27

MD5: ec74bf85323419e1381049df970dc77d SHA-1: 09c555d7167921d9fc9d5a6195bb829ccc042421 SHA-256: 97c2f4daeb0b94692f9f31eee78d9a167c7f47efbb6ec744475e96badc7986b6

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF document flagged by ML classifiers and ClamAV as malicious, specifically identified as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is the primary indicator of malicious intent. The PDF structure itself does not contain executable scripts, but the presence of the external URI suggests a phishing or malware delivery attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9996

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/strik?utm_term=issues+%2526+answers+network+inc+reviews PDF link annotation
- https://cdn-cms.f-static.net/uploads/4463010/normal_5fa7d1c261c7f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4465390/normal_5fb45ce92c707.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4477155/normal_5fa99ff71c60b.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/7069088f-1b01-491f-bc5a-3c88645db2e3/performance_behavior_examples.pdfIn PDF document text
- https://s3.amazonaws.com/mejifavo/22936151503.pdfIn PDF document text
- https://s3.amazonaws.com/wusigipufuvowix/zenith_tv_manual.pdfIn PDF document text
- https://s3.amazonaws.com/latufenaw/tea_tv_app_for_android.pdfIn PDF document text
- https://s3.amazonaws.com/resixexi/22995514850.pdfIn PDF document text
- https://s3.amazonaws.com/vexosafugunu/mijigogazejunedomotuxika.pdfIn PDF document text
- https://s3.amazonaws.com/fajetufekejo/majavoxewe.pdfIn PDF document text
- https://s3.amazonaws.com/numegubowalonan/53706649213.pdfIn PDF document text
- https://s3.amazonaws.com/purufiz/at_t_mobile_transfer_apk_monk.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_off0000aead.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAEAD	4272 bytes
SHA-256: `88629884c30f3b312bd2c60b6df535473091101d0827c7ea3c98ff20be38a447`
`font_01_sfnt_off0000bd3f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBD3F	10260 bytes
SHA-256: `b81b469ff2d338766047f3a5bcfea0c21c946880dc7f728b7b47e7d6cbbafdff`

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