PDF malware analysis — malicious · d2b0ef795de0406c

MALICIOUS

PDF

72.5 KB Created: 2021-01-25 11:48:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15

MD5: ed357d2702766c38f8a8cae61ccfe5db SHA-1: e0a865da66a20aa9e682965064ef850e47039459 SHA-256: d2b0ef795de0406c7b6286e69bd52fafa259979a6a45c251618fe7940f7c3b13

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF document that contains an embedded URL, which is a common tactic for phishing and malware distribution. The ML classifier and ClamAV detection strongly indicate maliciousness. The embedded URL likely leads to a malicious payload or phishing page, masquerading as an educational guide.

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://leonvi.ru/123?utm_term=toefl+ibt+official+guide+pdf PDF link annotation
- https://static.s123-cdn-static.com/uploads/4486984/normal_6006cd573158d.pdfIn PDF document text
- https://cdn.sqhk.co/jixuvepabu/iMyEidF/kpop_piano_tiles_bts_mod_apk.pdfIn PDF document text
- http://presentinsta.site/business_textbook_grade_12dcjdh.pdfIn PDF document text
- http://optamorem.com/best_ladder_jokesrny9y.pdfIn PDF document text
- https://cdn.sqhk.co/mezugifosa/GVxgdDF/xaluxonosota.pdfIn PDF document text
- http://krokoboko3.xyz/64194938010sg0co.pdfIn PDF document text
- http://instgramcopyrightdispute.com/lutedenidakigivuzajufekofs126p.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/zozuxukoxo/48085500624.pdfIn PDF document text
- https://s3.amazonaws.com/livivuvuwugeb/magisterium_bronze_key.pdfIn PDF document text
- https://s3.amazonaws.com/juwofuxufijup/advanced_mathematics_2_vtu_notes.pdfIn PDF document text
- https://s3.amazonaws.com/lanubili/pavularol.pdfIn PDF document text
- https://s3.amazonaws.com/midipes/equifax_credit_report_fax_number.pdfIn PDF document text
- https://s3.amazonaws.com/rogugagatuf/ruxiresisemojax.pdfIn PDF document text
- https://s3.amazonaws.com/siwixomudit/5th_grade_spelling_bee_words_2018.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_off0000dfa0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDFA0	5140 bytes
SHA-256: `dafc754a6f59e0a0e2ed37a6ef950bb3368dbe2adf0cd6837cec0211486d738d`
`font_01_sfnt_off0000f132.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF132	10436 bytes
SHA-256: `39a5122438e42180a5f88b2fdd480d29bdaa27cb0fde70bcc5a256381db30bca`

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