PDF malware analysis — malicious · 5787bef75af1807f

MALICIOUS

PDF

45.8 KB Created: 2021-06-08 17:35:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18

MD5: 8bc7e56c1dc871590f2436e92de20452 SHA-1: 8090a897c58655e9dbcce743f8035fc17448b893 SHA-256: 5787bef75af1807f5d8ad385603fc711cb9abbdb92c415407aa3d275cefcf2eb

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 0.9864

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.tw/app/431946152/roblox-stucid-fly-hack-game-hack PDF link annotation
- http://rollipolli.hu/userfiles/files/free-minecraft-bedrock_GM479516143.pdfIn PDF document text
- http://rollipolli.hu/userfiles/files/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
- http://rollipolli.hu/userfiles/files/how-to-hack-golden-card-in-coin-master_GM406889139.pdfIn PDF document text
- http://rollipolli.hu/userfiles/files/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
- http://rollipolli.hu/userfiles/files/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
- http://rollipolli.hu/userfiles/files/roblox-free-robux_GM431946152.pdfIn PDF document text
- http://rollipolli.hu/userfiles/files/coin-master-free-spins-2021-hack_GM406889139.pdfIn PDF document text
- http://rollipolli.hu/userfiles/files/get-free-robux-com_GM431946152.pdfIn PDF document text
- http://rollipolli.hu/userfiles/files/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
- http://rollipolli.hu/userfiles/files/coin-master-gifts_GM406889139.pdfIn PDF document text
- http://rollipolli.hu/userfiles/files/tiktok-free-followers-mod-apk_GM835599320.pdfIn PDF document text
- http://rollipolli.hu/userfiles/files/free-roblox-gift-card_GM431946152.pdfIn PDF document text
- http://rollipolli.hu/userfiles/files/toolbox-for-minecraft-ios_GM479516143.pdfIn PDF document text
- http://rollipolli.hu/userfiles/files/real-free-robux-codes_GM431946152.pdfIn PDF document text
- http://rollipolli.hu/userfiles/files/coin-master-free-spins-link-today-ios_GM406889139.pdfIn PDF document text
- http://rollipolli.hu/userfiles/files/free-robux-hack_GM431946152.pdfIn PDF document text
- http://rollipolli.hu/userfiles/files/how-to-create-group-in-coin-master-free-spins_GM406889139.pdfIn PDF document text
- http://rollipolli.hu/userfiles/files/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
- http://rollipolli.hu/userfiles/files/robuxy-com-generator_GM431946152.pdfIn PDF document text
- http://rollipolli.hu/userfiles/files/free-coin-and-spin-in-coin-master_GM406889139.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_004_off00004fd0.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4FD0	27304 bytes
SHA-256: `0d66bab271075d1e8b18adfe8b9df35ff258d3102ee335486d5e8453212deccd`
`font_01_sfnt_off00008e26.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8E26	19064 bytes
SHA-256: `39ba9f6671bda075317e15092fca21f7949242fb19db61f27231bf9826c83bf8`

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