PDF malware analysis — malicious · be161b4dd5adbe3b

MALICIOUS

PDF

35.6 KB Created: 2021-06-20 17:27:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: cd5e51f5abe7a04eccb24abd68703190 SHA-1: 9a2150bb180f25653052db61340dcceafc1d488f SHA-256: be161b4dd5adbe3b9f7eb789aebfdfbe9ba31c1746924655d6d7c5c429a7327b

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 0.9980

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.co/app/406889139/coin-master-daily-gift-free-spins-and-coins-game-hack PDF link annotation
- https://www.man2samarinda.com/__statics/gudangsoal/files/free-limiteds-roblox_GM431946152.pdfIn PDF document text
- https://man2samarinda.com/__statics/gudangsoal/files/coin-master-hack-mod-game-download_GM406889139.pdfIn PDF document text
- https://www.man2samarinda.com/__statics/gudangsoal/files/but-link-says-free-robux_GM431946152.pdfIn PDF document text
- https://man2samarinda.com/__statics/gudangsoal/files/minecraft-hacks-18-9_GM479516143.pdfIn PDF document text
- https://man2samarinda.com/__statics/gudangsoal/files/jake-paul-merch-roblox-free_GM431946152.pdfIn PDF document text
- https://www.man2samarinda.com/__statics/gudangsoal/files/free-roblox-gift-card-codes-2021_GM431946152.pdfIn PDF document text
- https://man2samarinda.com/__statics/gudangsoal/files/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
- https://man2samarinda.com/__statics/gudangsoal/files/minecraft-realms-free_GM479516143.pdfIn PDF document text
- https://man2samarinda.com/__statics/gudangsoal/files/free-robux-easy_GM431946152.pdfIn PDF document text
- https://man2samarinda.com/__statics/gudangsoal/files/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
- https://man2samarinda.com/__statics/gudangsoal/files/coin-master-35-16-hack-apk_GM406889139.pdfIn PDF document text
- https://man2samarinda.com/__statics/gudangsoal/files/coin-master-villages_GM406889139.pdfIn PDF document text
- https://www.man2samarinda.com/__statics/gudangsoal/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
- https://man2samarinda.com/__statics/gudangsoal/files/coin-master-hack-tool-v1-9-apk_GM406889139.pdfIn PDF document text
- https://man2samarinda.com/__statics/gudangsoal/files/wahoo-gaming-co-free-robux_GM431946152.pdfIn PDF document text
- https://man2samarinda.com/__statics/gudangsoal/files/free-roblox-accounts-com_GM431946152.pdfIn PDF document text
- https://man2samarinda.com/__statics/gudangsoal/files/coin-master-rewards-free-spins_GM406889139.pdfIn PDF document text
- https://www.man2samarinda.com/__statics/gudangsoal/files/robloxbux-us-generator_GM431946152.pdfIn PDF document text
- https://www.man2samarinda.com/__statics/gudangsoal/files/minecraft-coins-free_GM479516143.pdfIn PDF document text
- https://man2samarinda.com/__statics/gudangsoal/files/roblox-cheat-codes_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
`stream_002_off0000335b.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x335B	22992 bytes
SHA-256: `03aa02039b60a463a99974c79eaac1ace7b9b6351f28cea162efde07537582c7`
`font_01_sfnt_off00006739.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6739	18772 bytes
SHA-256: `2dd8fcaaaa7940310a4bf2690e935a592ec4e1d7e461a5c9d3fb10c99d244ce7`

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