PDF malware analysis — malicious · 38d13ca0d4b7df90

MALICIOUS

PDF

34.5 KB Created: 2021-07-09 07:13:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 0b6bdbfdeaacd083c78ce2bd32bd13f9 SHA-1: 1595ef29e90de001708e81664b86958a679ef140 SHA-256: 38d13ca0d4b7df90c2245054fcabd481e099d8df66b3cd67c3d0e30bac8b59ea

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/479516143/minecraft-pe-free-apk-game-hack PDF link annotation
- https://vosco.vn/uploads/vosco.vn/files/dragon-ball-flaming-path-hack-roblox_GM431946152.pdfIn PDF document text
- https://vosco.vn/uploads/vosco.vn/files/roblox-cheat-speed_GM431946152.pdfIn PDF document text
- https://vosco.vn/uploads/vosco.vn/files/free-robux-with-no-human-verification_GM431946152.pdfIn PDF document text
- https://vosco.vn/uploads/vosco.vn/files/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://vosco.vn/uploads/vosco.vn/files/roblox-free-gear-hack_GM431946152.pdfIn PDF document text
- https://vosco.vn/uploads/vosco.vn/files/lastrick-com-coin-master-hack_GM406889139.pdfIn PDF document text
- https://vosco.vn/uploads/vosco.vn/files/doge-ahat-free-roblox_GM431946152.pdfIn PDF document text
- https://vosco.vn/uploads/vosco.vn/files/hack-avatar_GM431946152.pdfIn PDF document text
- https://vosco.vn/uploads/vosco.vn/files/free-limited-edition-items-on-roblox_GM431946152.pdfIn PDF document text
- https://vosco.vn/uploads/vosco.vn/files/bloxland-earn-free-robux_GM431946152.pdfIn PDF document text
- https://vosco.vn/uploads/vosco.vn/files/roblox-army-free-robux_GM431946152.pdfIn PDF document text
- https://vosco.vn/uploads/vosco.vn/files/oprewards-robux-free_GM431946152.pdfIn PDF document text
- https://vosco.vn/uploads/vosco.vn/files/impulse-hack-roblox_GM431946152.pdfIn PDF document text
- https://vosco.vn/uploads/vosco.vn/files/free-400-spins-coin-master_GM406889139.pdfIn PDF document text
- https://vosco.vn/uploads/vosco.vn/files/coin-master-hack-mod-apk-android-1_GM406889139.pdfIn PDF document text
- https://vosco.vn/uploads/vosco.vn/files/how-to-hack-in-roblox-treasure-hunt-simulator_GM431946152.pdfIn PDF document text
- https://vosco.vn/uploads/vosco.vn/files/free-robux-for-real-no-human-verification_GM431946152.pdfIn PDF document text
- https://vosco.vn/uploads/vosco.vn/files/coin-master-cheats_GM406889139.pdfIn PDF document text
- https://vosco.vn/uploads/vosco.vn/files/easy-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://vosco.vn/uploads/vosco.vn/files/tiktok-free-movies_GM835599320.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_off0000326b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x326B	22328 bytes
SHA-256: `967ee00cb41ac7a63b8247dc92dff573640c48b4023bb477d5f0fb41d622330d`
`font_01_sfnt_off0000640e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x640E	18356 bytes
SHA-256: `3de400347f681560e80a0db370a0d77c7f67bbb464d37fe0ec9a1adb3b0b5f9d`

Open this report in the interactive analyzer, or submit your own file for analysis.