PDF malware analysis — malicious · 66851a69a298c638

MALICIOUS

PDF

74.6 KB Created: 2021-01-14 00:39:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12

MD5: 6dbef291e6d683348026f5770d80dcdc SHA-1: 762a7f062d43320191010ef25453df50e3edb568 SHA-256: 66851a69a298c638c734a7b8eb39a9a39421f3cd6764f5066cc3b4ef0d0f327e

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains an external URI pointing to a URL that advertises game hacks, suggesting a phishing or malware distribution lure. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure suggest the document is designed to trick users into downloading further malicious content.

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://traffset.ru/123?utm_term=pixel+gun+3d+hack+android+unlimited+gems PDF link annotation
- https://cdn.sqhk.co/xumefotebe/1NnYxf8/aquapark_io_apk_indir.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4370555/normal_5fff6e65c7a60.pdfIn PDF document text
- https://cdn.sqhk.co/getabemuto/ibkigsz/suteponegigudadojuru.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4383467/normal_5fd63b8cc885d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368468/normal_5fa1193686d53.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4422879/normal_5febbf7b47597.pdfIn PDF document text
- https://cdn.sqhk.co/kizafizutuw/cgjhmlH/halloweentown_3_full_movie.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4380700/normal_5fd3279584ed4.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/litunux/8171536159.pdfIn PDF document text
- https://s3.amazonaws.com/nabifovu/we_haul_junk_cars.pdfIn PDF document text
- https://s3.amazonaws.com/fupanabivote/list_of_states_in_india_2019.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_off0000e5c0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE5C0	5652 bytes
SHA-256: `a303e6eb3ecec1838655584cfc950aff75693bed448c9218a7bee795f0060730`
`font_01_sfnt_off0000f8da.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF8DA	10856 bytes
SHA-256: `647e85cc9cef902bf1729fcbc2cf058cd40c5f0f38f58e62aae4f2115c3f65a5`

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