PDF malware analysis — malicious · 753cda8470e0b807

MALICIOUS

PDF

71.5 KB Created: 2020-11-24 10:34:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15

MD5: a6ba687f32196566736a2f90fb3f874d SHA-1: e55172cdf2dc64a609cda3812af6ce31827ffe43 SHA-256: 753cda8470e0b807ed44a1f66e3efcabd73c27e87193d6f76e9b957cc7da406f

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing attempt. The document body, though heavily obfuscated, contains text related to 'cell phone data recovery', likely a lure to encourage users to click the embedded malicious URL. No scripts were extracted, but the presence of an external URI points to a phishing or credential harvesting attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9995

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://trafftec.ru/123?utm_term=cell+phone+data+recovery+after+factory+reset PDF link annotation
- https://cdn-cms.f-static.net/uploads/4403121/normal_5fa47c0f38775.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4415951/normal_5fb2e4376e8d3.pdfIn PDF document text
- https://jonukejunuxesa.weebly.com/uploads/1/3/1/4/131409236/vokuvaworotegi-gatusukatim-xemugifuripig.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/subud/senorogalav.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/961a7b12-59d5-4287-a7fd-d9e52569f122/mowufotiseta.pdfIn PDF document text
- https://s3.amazonaws.com/vexosafugunu/hunter_x_core_controllers_manual.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/97d5455e-b366-4fed-9363-cb3951bd67cc/android_game_killer_apk.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c53c2106-b939-441f-99db-b5aec9704d8f/40745993308.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c53fa729-b717-4db3-a10c-0251ea643f81/spectrum_sharing_guidelines.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/11a9b67b-473c-4b2f-b284-86bffd001256/rodosexemi.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_off0000d99c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD99C	5312 bytes
SHA-256: `bf3e9ef3e21fc5cda4c950604e27d0183aab854b75bf27be66ea5cd170d855da`
`font_01_sfnt_off0000ebaf.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEBAF	10544 bytes
SHA-256: `36d0e857144bed2ad186543e1425a9e121b6299bc8294284655315fd90709a18`

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