PDF malware analysis — malicious · 18633dd219d2ad58

MALICIOUS

PDF

62.6 KB Created: 2021-02-10 17:19:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11

MD5: 71f9aff2b5c544f90818b127ab453d8b SHA-1: 7b1a4756fd9b4c0c42ad32ef0a44077167585cf6 SHA-256: 18633dd219d2ad584c0c892700ec7538d44134752e8b589dc26256bff7e2d24a

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The presence of multiple external URLs further supports the phishing or malicious content delivery vector.

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://seumenha.ru/123?utm_term=literary+devices+in+my+son+my+executioner PDF link annotation
- http://vkysnaya-eda.site/extrapolacion_de_richardson_codigo_matlab6xg1x.pdfIn PDF document text
- http://gakarefutejet.iblogger.org/candy_crush_game_java_app.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4407057/normal_6001cb6f38c8f.pdfIn PDF document text
- https://cdn.sqhk.co/werutojij/jjjfjgo/fifaxifelemusuvu.pdfIn PDF document text
- https://cdn.sqhk.co/mupalewefe/tjisiii/62767111864.pdfIn PDF document text
- https://cdn.sqhk.co/pujixefan/awhfibG/kapukuv.pdfIn PDF document text
- http://magic-world.site/catalogue_oriflame_september_2019duavt.pdfIn PDF document text
- https://cdn.sqhk.co/gawukale/Ggfjefi/crashing_season_4_cast_queen_of_the_south.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4418764/normal_5fcb19f71fb7c.pdfIn PDF document text
- http://trend-sales.fun/pijotelafakaxelorekifovergnz89.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://wawutanow.epizy.com/minecraft_free_mac_no_account.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_off0000bd17.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBD17	5224 bytes
SHA-256: `d9c23e66a4e4b95c4c4da607d2f8ef67f40034468a76ea5140333c3fd95b8c18`
`font_01_sfnt_off0000ced4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCED4	9036 bytes
SHA-256: `587bbd6e622644e067f9118137d005bc7c106fa89bd50e45fad205e52d5732d4`

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