PDF malware analysis — malicious · 6a97e3afaa862a3d

MALICIOUS

PDF

47.4 KB Created: 2021-06-11 10:52:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: e6e860a77d1c77eea567f670f8b10bea SHA-1: 10239bef2d57aa533f691ef702a4a845ce3c9717 SHA-256: 6a97e3afaa862a3d1fca30c9e2c04a1cbb28cd428a0f24582496bb96f8ea75a7

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple links to websites that are advertised as 'free generators' or 'game hacks' for popular games like Roblox and Minecraft. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates a malicious intent to redirect users to potentially harmful sites. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lures suggest a phishing or malware distribution attempt, likely initiated via a spearphishing attachment.

Machine Learning

Nyx PDF Classifier malicious score 0.9769

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/how-i-get-free-robux-nicster-v-game-hack PDF link annotation
- https://lesegais.ru/images/coin-master-real-free-spins_GM406889139.pdfIn PDF document text
- https://lesegais.ru/images/roblox-outrageous-builders-club-for-free_GM431946152.pdfIn PDF document text
- https://lesegais.ru/images/minecraft-free-download-unblocked_GM479516143.pdfIn PDF document text
- https://lesegais.ru/images/elysian-roblox-hacks_GM431946152.pdfIn PDF document text
- https://lesegais.ru/images/rbxoffers-earn-free-robux_GM431946152.pdfIn PDF document text
- https://lesegais.ru/images/get-free-roebucks-in-roblox_GM431946152.pdfIn PDF document text
- https://lesegais.ru/images/coin-master-hack-tool-pc_GM406889139.pdfIn PDF document text
- https://lesegais.ru/images/be-stampycat-roblox-skin-for-free_GM431946152.pdfIn PDF document text
- https://lesegais.ru/images/infident-jump-hack-roblox_GM431946152.pdfIn PDF document text
- https://lesegais.ru/images/free-roblox-hack-us_GM431946152.pdfIn PDF document text
- https://lesegais.ru/images/mcpe-master-hack-unlimited-coins-download_GM406889139.pdfIn PDF document text
- https://lesegais.ru/images/minecraft-hacks-18-9_GM479516143.pdfIn PDF document text
- https://lesegais.ru/images/coin-master-shield-hack_GM406889139.pdfIn PDF document text
- https://lesegais.ru/images/gold-card-coin-master-free_GM406889139.pdfIn PDF document text
- https://lesegais.ru/images/how-do-u-hack-roblox_GM431946152.pdfIn PDF document text
- https://lesegais.ru/images/free-robux-com-2021_GM431946152.pdfIn PDF document text
- https://lesegais.ru/images/brown-hair-roblox-free_GM431946152.pdfIn PDF document text
- https://lesegais.ru/images/robux-fun-hack_GM431946152.pdfIn PDF document text
- https://lesegais.ru/images/minecraft-free-demo_GM479516143.pdfIn PDF document text
- https://lesegais.ru/images/coin-master-spins-hack_GM406889139.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off00004f89.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4F89	25532 bytes
SHA-256: `2bedb3143203775d122bb9152b720bf29dbe62f871b880ae1e3bab15ec6640f1`
`font_01_sfnt_off00008b21.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8B21	3016 bytes
SHA-256: `4c3e2db5174821787a4569c9da4979555510caebd15fb9cea35573c139e242bd`
`font_02_sfnt_off00009585.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9585	18536 bytes
SHA-256: `0c0396bdb1b35a9175004e840f305221f888f80fb822a1dae4e8c27bfbab5a7d`

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