PDF malware analysis — malicious · 87ac5eed9aa123e4

MALICIOUS

PDF

45.6 KB Created: 2021-06-09 05:30:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17

MD5: 12d3468122f7080afa7b961041c0ff2c SHA-1: 6797ebf31dd9eba67dfd73030ffca48dcd0c77fa SHA-256: 87ac5eed9aa123e42e668c03caf38ce8a03b68f81ed56d4c72afe72359bc1500

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a lure for a "free generator / game hack" which redirects to a malicious URL. The ML classifier also flagged this PDF as malicious. The primary goal appears to be directing the user to a potentially malicious website, likely for further exploitation or credential harvesting.

Machine Learning

Nyx PDF Classifier malicious score 0.9864

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/roblox-prop-boat-free-game-hack PDF link annotation
- https://inspiration-modellbau.de/images/coin-master-35-2-hack_GM406889139.pdfIn PDF document text
- https://inspiration-modellbau.de/images/free-shirt-roblox-2021_GM431946152.pdfIn PDF document text
- https://inspiration-modellbau.de/images/roblox-free-plane_GM431946152.pdfIn PDF document text
- https://inspiration-modellbau.de/images/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
- https://inspiration-modellbau.de/images/hack-coin-master-download-ios_GM406889139.pdfIn PDF document text
- https://inspiration-modellbau.de/images/how-to-get-a-free-skin-roblox-avatar_GM431946152.pdfIn PDF document text
- https://inspiration-modellbau.de/images/coin-master-free-spins-hack-without-human-verification_GM406889139.pdfIn PDF document text
- https://inspiration-modellbau.de/images/roblox-hack-v6-5_GM431946152.pdfIn PDF document text
- https://inspiration-modellbau.de/images/free-spin-coin-master-hacktoman_GM406889139.pdfIn PDF document text
- https://inspiration-modellbau.de/images/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
- https://inspiration-modellbau.de/images/roblox-cheatszip_GM431946152.pdfIn PDF document text
- https://inspiration-modellbau.de/images/how-to-hack-someones-minecraft-account_GM479516143.pdfIn PDF document text
- https://inspiration-modellbau.de/images/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
- https://inspiration-modellbau.de/images/coin-master-free-spins-cheats_GM406889139.pdfIn PDF document text
- https://inspiration-modellbau.de/images/free-robux-give-away-everyone-will-get-robux-proof_GM431946152.pdfIn PDF document text
- https://inspiration-modellbau.de/images/veichle-simulator-roblox-hack_GM431946152.pdfIn PDF document text
- https://inspiration-modellbau.de/images/mcpe-com_GM479516143.pdfIn PDF document text
- https://inspiration-modellbau.de/images/coin-master-free-spons-apk-2021_GM406889139.pdfIn PDF document text
- https://inspiration-modellbau.de/images/free-coins-and-spins-coin-master_GM406889139.pdfIn PDF document text
- https://inspiration-modellbau.de/images/roblox-builders-club-free-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_off00005332.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5332	26296 bytes
SHA-256: `685a5558006893cf02826ae969c689a57dbc14451e7f95b0a2599bbe7962b954`
`font_01_sfnt_off00008e98.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8E98	18608 bytes
SHA-256: `f20de9dd8fd94c1035b6bae717ab0737d041986e7587177b548ca89bf99be324`

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