PDF malware analysis — malicious · 0bca1ee34629cc3f

MALICIOUS

PDF

35.0 KB Created: 2021-07-03 12:20:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: 1b75199af869072885a125260e4fa1b2 SHA-1: 7d4288d3a629f5f47bcb5964d10db470ba3b50c2 SHA-256: 0bca1ee34629cc3f3143924058e90b18ae7cdc29b51aa33f02fe1e1543b2bd17

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to sites offering game hacks and free spins, a common lure for malicious content. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the presence of these lures and the high ML score indicate a high likelihood of this document being used to direct users to potentially harmful websites.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE

PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON

Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
External URI info PDF_URI

PDF contains an external URL action
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 http://netcdn.tw/app/406889139/100-free-spins-coin-master-game-hack PDF link annotation
- http://www.visionledindia.com/uploaded_files/userfiles/files/completed-coin-master-hack_GM406889139.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/coin-master-free-spins-and-coins-hack_GM406889139.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/coin-master-free-coins-amp_GM406889139.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/sword-fighting-roblox-hack_GM431946152.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/roblox-games-free_GM431946152.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/roblox-hack-autohotkey-roblox-piano-player_GM431946152.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/coin-master-hack-com_GM406889139.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/coin-master-time-hack-ios_GM406889139.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/roblox-arcane-adventures-stats-hack-script_GM431946152.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/coin-master-hack-spins-free_GM406889139.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/roblox-admin-commands-hack-2021_GM431946152.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/what-is-exploiting-in-roblox_GM431946152.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/avatar-de-roblox_GM431946152.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/roblox-how-to-get-free-codes-group_GM431946152.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- http://www.visionledindia.com/uploaded_files/userfiles/files/roblox-hacked-version-download_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00003225.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3225	23052 bytes
SHA-256: `1de2873e7d1dab994b033f7ac8c8132eb47dd34d5899ead6a13d1f98c4cecc33`
`font_01_sfnt_off000065db.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x65DB	18452 bytes
SHA-256: `d0c04ff51ad59f6355ad4f24aeb86ad145506544650f67de66568f082738138f`

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