PDF malware analysis — malicious · 909ba5ed9ec60700

MALICIOUS

PDF

68.6 KB Created: 2020-12-30 12:03:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21

MD5: cac177b7eed56845efef1a63f346818f SHA-1: 1c7e84a4aca9e0e5c5feb90809e265ae752813a8 SHA-256: 909ba5ed9ec60700323cf616d78399e30e225153d4c19d6c952fd35718f6fe41

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically identified as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site for further exploitation. The document body contains garbled text, suggesting it is not intended for direct user interaction but rather to host the malicious link.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

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://trafffi.ru/strik?utm_term=crossings+church+okc+vbs PDF link annotation
- https://cdn-cms.f-static.net/uploads/4415309/normal_5fdabd4f5a38a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4426423/normal_5f9de327dc2c3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4475874/normal_5fbc660039354.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4406806/normal_5fa48d90b8c5e.pdfIn PDF document text
- https://cdn.sqhk.co/diruzatojep/bUiigjc/christian_cinema_on_apple_tv.pdfIn PDF document text
- https://cdn.sqhk.co/lewivapawo/biixijE/sisters_oregon_mapquest.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4381105/normal_5fe4059da49dd.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4417138/normal_5fc94c34d1235.pdfIn PDF document text
- https://cdn.sqhk.co/vagekoxes/NVrShcB/sudigusar.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/kumasala/gifuzajosodeluwosivomasuk.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a27cc6a0-a84d-40fd-9140-1dfabd074013/ruguruwesomamagojubub.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_off0000ce84.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCE84	4988 bytes
SHA-256: `add859c209017115cdc934ad33c3848b4965458e79bf22bc7681246f6649beba`
`font_01_sfnt_off0000df83.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDF83	11368 bytes
SHA-256: `92183edf88e764e328fe260421ed2ad4b2bb81a9913442604d9db828cb5bf664`

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