PDF malware analysis — malicious · a3aef175771cb744

MALICIOUS

PDF

34.0 KB Created: 2021-07-04 03:15:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 11905ae67fea421272c3984dbdded1ad SHA-1: 281a9a0d28fdbe8eccf4a92343acf192d9ec81e3 SHA-256: a3aef175771cb7446dbf2ca9100e3c0f9a9a5f12e1cbafdf419a1b408feebd98

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.tw/app/431946152/free-draw-roblox-game-hack PDF link annotation
- https://7gking.tw/upload/files/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
- https://7gking.tw/upload/files/youtube-roblox-hack-elemental-battle-ground_GM431946152.pdfIn PDF document text
- https://7gking.tw/upload/files/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
- https://7gking.tw/upload/files/free-robux-no-buying-things_GM431946152.pdfIn PDF document text
- https://7gking.tw/upload/files/coin-master-village-3_GM406889139.pdfIn PDF document text
- https://7gking.tw/upload/files/avatar-roblox-game_GM431946152.pdfIn PDF document text
- https://7gking.tw/upload/files/minecraft-servers-that-allow-hacks_GM479516143.pdfIn PDF document text
- https://7gking.tw/upload/files/free-robux-number_GM431946152.pdfIn PDF document text
- https://7gking.tw/upload/files/roblox-royale-high-diamond-hack_GM431946152.pdfIn PDF document text
- https://7gking.tw/upload/files/como-hack-coin-master_GM406889139.pdfIn PDF document text
- https://7gking.tw/upload/files/cheats-in-vehicle-simulator-roblox_GM431946152.pdfIn PDF document text
- https://7gking.tw/upload/files/free-roblox-song-codes_GM431946152.pdfIn PDF document text
- https://7gking.tw/upload/files/robux-fun-hack_GM431946152.pdfIn PDF document text
- https://7gking.tw/upload/files/roblox-hack-red-boy_GM431946152.pdfIn PDF document text
- https://7gking.tw/upload/files/roblox-pizza-cheat-engine-script_GM431946152.pdfIn PDF document text
- https://7gking.tw/upload/files/daily-free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
- https://7gking.tw/upload/files/how-to-hack-roblox-games-2021_GM431946152.pdfIn PDF document text
- https://7gking.tw/upload/files/hack-rango-99-roblox-phantom-forces_GM431946152.pdfIn PDF document text
- https://7gking.tw/upload/files/coin-master-hack-apk_GM406889139.pdfIn PDF document text
- https://7gking.tw/upload/files/roblox-hack-robux-hack-no-verification_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_off00002ec9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2EC9	22148 bytes
SHA-256: `07e49e3180fe3dc65abaab12f6be3cfcfa611abd7affa308021f452af1963b3d`
`font_01_sfnt_off00005fc1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5FC1	18984 bytes
SHA-256: `c9a437ed21f5727825c8f5bb4a2a9a84ae98f08afb2ff34fcd41a5b5e7b26fbd`

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