PDF malware analysis — malicious · fbcc2d5721b3648e

MALICIOUS

PDF

75.9 KB Created: 2020-12-20 00:02:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: e701989625e8e7f8d487cc55a555c8a9 SHA-1: d3b5b9f380f3e63a6e7a5dc6ab1771058d6a202a SHA-256: fbcc2d5721b3648e37ec688984be41dab45b415688a98d408c457a6221463a4d

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged as malicious by a ML classifier and ClamAV, indicating a high likelihood of malicious intent. The document contains an embedded URI pointing to 'trafficel.ru', which is likely used to deliver a secondary payload or redirect the user to a phishing site. The presence of PDF-specific heuristics further supports the malicious classification.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

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=how+to+compile+opengl+c+program+in+ubuntu
- https://static.s123-cdn-static.com/uploads/4478125/normal_5fde77f5b6956.pdf
- https://cdn-cms.f-static.net/uploads/4426967/normal_5fdc90ed34ccc.pdf
- https://cdn-cms.f-static.net/uploads/4405899/normal_5fd6a7842eb18.pdf
- https://cdn-cms.f-static.net/uploads/4369631/normal_5f8927abab2c1.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://s3.amazonaws.com/gelawiweza/colorado_dmv_driving_test_answers.pdf
- https://static1.squarespace.com/static/5fc5306ac14dfd36fe0d8a55/t/5fd60c2ede5b1220c02122d6/1607863343356/majaku.pdf
- https://s3.amazonaws.com/genedonapubefe/24549009158.pdf
- https://static1.squarespace.com/static/5fc27fb3239b0722913b63ef/t/5fc4891a61e25426e1c9189f/1606715675088/baldwin_middle-senior_high_school.pdf
- https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf5d1a4e98326c020804ab/1606376731215/67717934289.pdf
- https://s3.amazonaws.com/muvarelo/28009694402.pdf
- https://s3.amazonaws.com/gewisetug/tapevixumemetujedes.pdf
- https://s3.amazonaws.com/piwupevivotixi/valuteravu.pdf
- https://static1.squarespace.com/static/5fc5677ef9866f3fd2f21712/t/5fcbdbf226a2be7f6df068bd/1607195634702/23458969289.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000d94a.bin` `3210a2083d839527277a58ff3dbbf398d77055ce6d7142cbe17c30f146e0e26c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD94A	5152 bytes
`font_01_sfnt_off0000eac2.bin` `279b97c597e7f53ea93dede1ceacd3780d9d4352e3228c00687bb18dc626aef4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEAC2	12400 bytes
`font_02_sfnt_off00011483.bin` `7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11483	4324 bytes

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