PDF malware analysis — malicious · 9bcf96927da9139e

MALICIOUS

PDF

44.3 KB Created: 2021-06-03 12:23:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02

MD5: 207160403dc02a8f291175aee1f5f175 SHA-1: d5f73aeb9b2a054e4f9fca5bf8c984bd2a9fad1a SHA-256: 9bcf96927da9139e3461046029d907020fbc101bbac689ef0eaa4e6310d9808d

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 0.9865

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.online/app/835599320/buy-tiktok-likes-free-game-hack PDF link annotation
- https://www.insol-europe.org/uploads/files/files/free-minecraft-maps_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/get-me-robux-for-free_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/how-to-get-20210-robux-for-free_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-robux-gen_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/master-coin-free-spin_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/coin-master-34-4-hack_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/roblox-apocalypse-rising-hack_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-robux-app-real_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/coin-master-hacks-for-cards_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-coin-master-spins_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/minecraft-pe-free_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-tiktok-followers-and-likes_GM835599320.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/coin-master-hack-mod-apk-free-download_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/rbxoffers-earn-free-robux_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/minecraft-pocket-edition-free-ios_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/how-to-make-a-server-in-minecraft-java-for-free_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/minecraft-for-chromebook-free_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/how-to-get-free-robux-easy-no-download_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_004_off00004d4e.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4D4E	27300 bytes
SHA-256: `79ae849863dd2d2bf582348340696500c737be935f407266fcfe905b77aee82c`
`font_01_sfnt_off00008b9d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8B9D	17992 bytes
SHA-256: `5a285995f939c82fe8a421920004d2da3f98bfe29c016a707c824504500d0912`

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