PDF malware analysis — malicious · 15bf64459af30dc2

MALICIOUS

PDF

63.9 KB Created: 2020-12-25 14:48:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27

MD5: a2c729bfa6f93db819306d3a80337a35 SHA-1: c814a931583bf34e57c5c931c4440bac8e92eaed SHA-256: 15bf64459af30dc2a1e89eaae48fe5e0e1846233a3098dc670ca56168f8fa1f5

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is identified as malicious by a ClamAV detection and an ML classifier, indicating a high likelihood of malicious intent. The presence of an embedded URL pointing to 'trafftec.ru' suggests a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic point towards a malicious document, likely leveraging a PDF exploit or social engineering to redirect the user.

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://trafftec.ru/123?utm_term=eureka+as1104+manual PDF link annotation
- https://cdn.sqhk.co/pekebugus/G3f0hhs/beyonce_destiny_s_child_songs_youtube.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387408/normal_5f90f3180f8d7.pdfIn PDF document text
- https://cdn.sqhk.co/jozojijejip/egfijew/9614799252.pdfIn PDF document text
- https://ralugegab.weebly.com/uploads/1/3/4/8/134888835/1f384ed.pdfIn PDF document text
- https://kojaresojew.weebly.com/uploads/1/3/4/3/134312518/bozogerigaga-tefilijepogukar.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/6e94cd0a-f611-468f-9527-4491ad2bc454/16663177595.pdfIn PDF document text
- https://s3.amazonaws.com/fizufapu/widad.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e8c036fe-28f8-44bb-b325-de13290d0274/loduduratebimurafoxariza.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/47ed9b3f-ca66-4775-904e-ab59e529f1d0/zombs_royale_free_gems.pdfIn PDF document text
- https://s3.amazonaws.com/wogikokuzotaxa/deloitte_financial_reporting_insights.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_off0000be63.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBE63	5132 bytes
SHA-256: `cd69bca18ac0eb0c527d927e93bd636495c7c8a68f39f1ec21bfc1d49e9820f4`
`font_01_sfnt_off0000cfcb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCFCB	10400 bytes
SHA-256: `f3858a67b655dedf5af856bec8dbc047fe7e2dbe000e22d35053c573754bd1c2`

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