PDF malware analysis — malicious · 41a174fd4fab063e

MALICIOUS

PDF

87.6 KB Created: 2021-02-20 14:46:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: cf57ab9cbd115d61d00dff7625d3d00d SHA-1: aeab9b77f6993b7111ae2e60c3fe173f94a0f987 SHA-256: 41a174fd4fab063eea8c3c831fbdfae6334362bf562f973d2b75c5c673b6aca3

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URI pointing to a URL that appears to be a search result lure, likely intended to trick the user into clicking through to a malicious site. The presence of multiple embedded URLs and the nature of the ClamAV detection suggest this PDF is part of a phishing campaign designed to deliver further malware.

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://seumenha.ru/wix?keyword=minecraft+witchery+mod+how+to+become+a+werewolf
- https://cdn.sqhk.co/feketukadoz/1hbiihg/nanadezitojidufamijojun.pdf
- https://cdn.sqhk.co/mukutosi/igphigg/damefab.pdf
- https://cdn-cms.f-static.net/uploads/4426955/normal_6018806dd118b.pdf
- https://cdn.sqhk.co/losegiro/5geHH2t/80580125852.pdf
- https://cdn-cms.f-static.net/uploads/4393019/normal_60287c3262e98.pdf
- http://jibinomazovujug.22web.org/reporter_questions_for_interview.pdf
- http://akfb.online/gosekotigunijidavotekimt3hj4.pdf
- https://cdn.sqhk.co/miraroki/VstMhck/oasis_slide_away_live_glastonbury.pdf
- https://cdn.sqhk.co/menodotitit/Sjd5kih/valgame_dios_novela_capitulos_completos.pdf
- https://cdn-cms.f-static.net/uploads/4380887/normal_5fd780c64f913.pdf
- https://cdn-cms.f-static.net/uploads/4425933/normal_5fd7f5888b6ac.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/bajuse/daredevil_season_1_episode_guide.pdf
- https://s3.amazonaws.com/fipijife/irig_blueboard_manual.pdf
- https://s3.amazonaws.com/kuxegu/puteramosumowevame.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00010409.bin` `a0b371c04982d5c2dd0cc33a117e207ea23e405c0fd25254072882ba02381e11`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10409	5420 bytes
`font_01_sfnt_off00011671.bin` `f52a1cfac18d3749fa2d60c4b0893db087f7e6745b28da3db141102625067fbe`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11671	11320 bytes
`font_02_sfnt_off00013be4.bin` `6820151f9a4816bccc9e85e605aef44ce22c8924dfcccd161584754f275bf028`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x13BE4	16132 bytes

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