PDF malware analysis — malicious · 345476285508505d

MALICIOUS

PDF

76.4 KB Created: 2021-02-18 06:45:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14

MD5: 0e439ff11acc4a0ba584dc671f16b21f SHA-1: 6ccee6988ed9f142607dcad25f6230d27218da77 SHA-256: 345476285508505d4143d171f4f927e72adc15ce9a4ed50fa2e31af1d9ce5dd7

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains an embedded URL pointing to 'baarspo.ru', which is likely part of the phishing lure related to an HP printer issue. The PDF structure and embedded content suggest it's designed to trick users into visiting the malicious URL.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

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/strik?utm_term=hp+officejet+6700+ink+cartridge+problem PDF link annotation
- https://cdn.sqhk.co/jivazufevi/gfhbHpB/93836383036.pdfIn PDF document text
- https://cdn.sqhk.co/votezevon/fKZAFU1/12336587157.pdfIn PDF document text
- https://cdn.sqhk.co/lijedubejop/dibVgih/29628484396.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4446395/normal_60034cd88be81.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4501993/normal_5fd08e2514899.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4410415/normal_5fcf5b45a4ae9.pdfIn PDF document text
- http://kinokaiff.space/29033184568k1uys.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- http://vowatul.rf.gd/autocad_2020_crack_xforce_free.pdfIn PDF document text
- http://xewegifugeralot.rf.gd/crack_apk_spotify_premium.pdfIn PDF document text
- https://s3.amazonaws.com/fuwawibu/java_interview_questions_for_5_years_experience_and_answers.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000df59.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDF59	5700 bytes
SHA-256: `7edec9c972ee0d8749d98bbbafd4d133f82164c3131bf755df4e3cb814a0e391`
`font_01_sfnt_off0000f2ad.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF2AD	10716 bytes
SHA-256: `4384b819981c3714901d664de17c03ecce67e647a1daf114b7f5c944ecd4eac3`
`font_02_sfnt_off00011734.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11734	4324 bytes
SHA-256: `a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f`

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