PDF malware analysis — malicious · f4f1dbaa034a3612

MALICIOUS

PDF

72.4 KB Created: 2021-02-05 17:46:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11

MD5: ffdcf49e1820e9efa25e1fa14e286c1d SHA-1: 840c6ec6056103f06f26bdb75095c9270e203f3a SHA-256: f4f1dbaa034a361257595389c9d5faf8037c3458acfa362b0db5cb1197b2e6fd

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'baarspo.ru', which is likely a phishing domain. The document body, though heavily obfuscated, suggests a lure related to streaming content, aiming to trick users into visiting the malicious URL. No scripts were extracted, but the presence of external URIs and the overall detection profile strongly suggest a phishing attack.

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://baarspo.ru/123?utm_term=%25C3%25A8+arrivata+la+felicit%25C3%25A0+streaming+guardaserie PDF link annotation
- http://newyearshop.site/college_football_championship_2019_highlightskfk7l.pdfIn PDF document text
- https://tebojejuket.weebly.com/uploads/1/3/4/7/134764489/1937145.pdfIn PDF document text
- http://tomogorman.com/tituzibeswmj1.pdfIn PDF document text
- https://cdn.sqhk.co/sezivalaw/ShcibMv/rovofuw.pdfIn PDF document text
- http://matroskin.space/42590345718rukeb.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4379719/normal_5ffb9409e6041.pdfIn PDF document text
- https://cdn.sqhk.co/fukonovum/dhjjchc/carrier_hub_app_not_responding.pdfIn PDF document text
- https://cdn.sqhk.co/wodigajamu/pibjjJO/draw_it_too_fortnite_raven.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/woxewiwupir/durutafezugobu.pdfIn PDF document text
- https://s3.amazonaws.com/mupukesunobaga/autocad_drawing_practice_book.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_off0000d8fe.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD8FE	5612 bytes
SHA-256: `0ed81e27a469903c45965a3d817eab847fb550ab82133a55ee2fa9d17b56533a`
`font_01_sfnt_off0000eb7d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEB7D	12116 bytes
SHA-256: `87009d340fa69572ca8ae93cf90d6fac613fef07e8dff67addfac68484e3904f`

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