PDF malware analysis — malicious · 4ce16b846673e578

MALICIOUS

PDF

71.0 KB Created: 2020-11-25 13:18:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27

MD5: f67b086379d2b96b70fe68465ff55a55 SHA-1: 7e10bcfa7a9cb2bb402de1dcb744fd67f4237d1e SHA-256: 4ce16b846673e578e23f6f2f1e351c0c5985e61d58b69eba2c584601ff34877f

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, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'trafffi.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, contains references to 'Madden nfl 08 wii' and 'wkhtmltopdf', suggesting a lure to download or access game-related content, which is a common phishing tactic.

Machine Learning

Nyx PDF Classifier malicious score 0.9995

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/123?utm_term=madden+nfl+08+wii PDF link annotation
- https://fotejisatowonu.weebly.com/uploads/1/3/2/3/132302873/365ec1f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4389603/normal_5f91dcc012c51.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4371266/normal_5f95725f5f04d.pdfIn PDF document text
- https://zoniziwaxetoxa.weebly.com/uploads/1/3/4/4/134441104/wavorajogumaj.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4451954/normal_5fb28313915e6.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/pajukovuxetu/dafasetodiborum.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1c4dd477-ed05-496e-af20-073e063601b2/30556722854.pdfIn PDF document text
- https://s3.amazonaws.com/kujapomib/zipejonojirolali.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b6346b2e-31da-447f-a95f-8f686aa27ff8/33568309823.pdfIn PDF document text
- https://s3.amazonaws.com/niporofez/74201229784.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_off0000d968.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD968	5060 bytes
SHA-256: `916bd7597acec8aeaf10d8b3c791d798c2327b98e38bb2fa843e465a8e30438d`
`font_01_sfnt_off0000ead0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEAD0	10812 bytes
SHA-256: `717902b9535f506ea741edb1ee20e6a09763966ef128b227fdc0440613c0bf3f`

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