PDF malware analysis — malicious · d3167b863733acb3

MALICIOUS

PDF

43.1 KB Created: 2021-05-12 16:48:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 922050a64b8c0df613daaf75da02f129 SHA-1: 55ca84f7bb28daf39db0cb40df348ea73befe8a5 SHA-256: d3167b863733acb394ba3e2b2dee4061ec268af291ccb0d57f039bcd79ee04fa

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/479516143/mine-minecraft-games-for-free-game-hack PDF link annotation
- https://redaksi9.com/new/public/ckfinder/userfiles/files/coin-master-hack-apk-android-1_GM406889139.pdfIn PDF document text
- https://redaksi9.com/new/public/ckfinder/userfiles/files/how-to-hack-roblox-accounts-passwords_GM431946152.pdfIn PDF document text
- https://redaksi9.com/new/public/ckfinder/userfiles/files/coin-master-free-daily-spins-link-2021_GM406889139.pdfIn PDF document text
- https://redaksi9.com/new/public/ckfinder/userfiles/files/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
- https://redaksi9.com/new/public/ckfinder/userfiles/files/how-to-add-mods-to-minecraft-pe_GM479516143.pdfIn PDF document text
- https://redaksi9.com/new/public/ckfinder/userfiles/files/how-to-get-free-spins-on-coin-master-without-waiting_GM406889139.pdfIn PDF document text
- https://redaksi9.com/new/public/ckfinder/userfiles/files/rewards-roblox_GM431946152.pdfIn PDF document text
- https://redaksi9.com/new/public/ckfinder/userfiles/files/free-promo-codes-roblox_GM431946152.pdfIn PDF document text
- https://redaksi9.com/new/public/ckfinder/userfiles/files/2021-roblox_GM431946152.pdfIn PDF document text
- https://redaksi9.com/new/public/ckfinder/userfiles/files/hacks-for-coin-master-game_GM406889139.pdfIn PDF document text
- https://redaksi9.com/new/public/ckfinder/userfiles/files/roblox-fly-hack_GM431946152.pdfIn PDF document text
- https://redaksi9.com/new/public/ckfinder/userfiles/files/fb-coin-master_GM406889139.pdfIn PDF document text
- https://redaksi9.com/new/public/ckfinder/userfiles/files/minecraft-free-no-virus_GM479516143.pdfIn PDF document text
- https://redaksi9.com/new/public/ckfinder/userfiles/files/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
- https://redaksi9.com/new/public/ckfinder/userfiles/files/wurst-client-download_GM479516143.pdfIn PDF document text
- https://redaksi9.com/new/public/ckfinder/userfiles/files/how-do-you-get-roblox-for-free_GM431946152.pdfIn PDF document text
- https://redaksi9.com/new/public/ckfinder/userfiles/files/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
- https://redaksi9.com/new/public/ckfinder/userfiles/files/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
- https://redaksi9.com/new/public/ckfinder/userfiles/files/coin-master-free-coins-link-facebook_GM406889139.pdfIn PDF document text
- https://redaksi9.com/new/public/ckfinder/userfiles/files/free-robux-instantly_GM431946152.pdfIn PDF document text
- https://education.minecraftIn 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
`stream_003_off00004e70.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4E70	25048 bytes
SHA-256: `97832667cadac0579a01df693efbe677ac121b317f37614601662a5e6fc8370f`
`font_01_sfnt_off00008734.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8734	17968 bytes
SHA-256: `cadb606d3d0b8b0ab684217e51fa9c6d47dd4cc69c3dac55631094b48cac1516`

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