PDF malware analysis — malicious · 770629d00041075c

MALICIOUS

PDF

44.7 KB Created: 2021-06-03 08:19:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: 92bc77c7a647daecd57f344863e52348 SHA-1: f901328692afd4600de69b301b6ed3ab53f1cde8 SHA-256: 770629d00041075ce43e60302dc8023e6d6b4afcd0da01633e5e1aa6a48d08a9

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document employs a lure of free game items to trick users into clicking malicious links. The document contains multiple embedded URLs that redirect to further malicious PDF files, indicating a chain of malicious content delivery. The ML classifier strongly flagged this PDF as malicious, supporting the observed redirection behavior.

Machine Learning

Nyx PDF Classifier malicious score 0.9865

Heuristics 4

PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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
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/479516143/free-minecraft-account-and-password-2021-game-hack In PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/robux-free-robux_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/google-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/rbxoffers-com-free-robux_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/coin-master-hack-apk-android_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/easy-way-to-get-robux_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/how-to-cheat-in-roblox_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/free-roblox-shirt-templates-2021_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/free-roblox-generator-for-roblox_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/coin-master-game-hack-version-download_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/roblox-free-login_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/free-coin-master-hacks_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/minecraft-free-online-games_GM479516143.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/blox-supply-free-robux_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/is-there-an-actual-hack-that-work-for-coin-master_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/claim-gg-free-robux_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/how-to-get-a-free-minecraft-server_GM479516143.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_off0000534c.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x534C	24404 bytes
SHA-256: `e461b4c7d48a6553d5258bba5686c5bd3be817bd2ea5a3ce2060641f06aa2410`
`font_01_sfnt_off00008aa2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8AA2	18744 bytes
SHA-256: `32e597d278032ff7c82e1179504235c91567bf80b74fa8ae34959daeb6a42353`

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