PDF malware analysis — malicious · a87201f6221dca93

MALICIOUS

PDF

34.8 KB Created: 2021-07-10 00:07:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27

MD5: 009b709316525c0ab4796b5284e01391 SHA-1: d723d992de21e40e97f28b395bd1297a4841b55d SHA-256: a87201f6221dca93548f52d1557a6dd235a5cebd7ec3f032d22ea86959e13c35

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to sites offering game hacks and free currency, a common lure for phishing or malware distribution. The ML classifier strongly indicated maliciousness, and the document body confirms the lure. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

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/406889139/today-free-spin-coin-master-game-hack PDF link annotation
- http://mtsn31jkt.com/__statics/gudangsoal/files/minecraft-hacker-skin_GM479516143.pdfIn PDF document text
- http://mtsn31jkt.com/__statics/gudangsoal/files/coin-master-hack-tool-v1-9-pc_GM406889139.pdfIn PDF document text
- http://mtsn31jkt.com/__statics/gudangsoal/files/coin-master-free-coins-and-spins-today_GM406889139.pdfIn PDF document text
- http://mtsn31jkt.com/__statics/gudangsoal/files/free-games-like-minecraft_GM479516143.pdfIn PDF document text
- http://mtsn31jkt.com/__statics/gudangsoal/files/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
- http://mtsn31jkt.com/__statics/gudangsoal/files/how-do-you-get-roblox-for-free_GM431946152.pdfIn PDF document text
- http://mtsn31jkt.com/__statics/gudangsoal/files/roblox-fly-hack_GM431946152.pdfIn PDF document text
- http://mtsn31jkt.com/__statics/gudangsoal/files/free-tiktok-followers-without-verification_GM835599320.pdfIn PDF document text
- https://mtsn31jkt.com/__statics/gudangsoal/files/roblox-hacking-website_GM431946152.pdfIn PDF document text
- https://mtsn31jkt.com/__statics/gudangsoal/files/wurst-hacks_GM479516143.pdfIn PDF document text
- http://mtsn31jkt.com/__statics/gudangsoal/files/rbx-website_GM431946152.pdfIn PDF document text
- http://mtsn31jkt.com/__statics/gudangsoal/files/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
- https://mtsn31jkt.com/__statics/gudangsoal/files/roblox-free-hair-girl_GM431946152.pdfIn PDF document text
- https://mtsn31jkt.com/__statics/gudangsoal/files/avatar-de-roblox_GM431946152.pdfIn PDF document text
- http://mtsn31jkt.com/__statics/gudangsoal/files/free-realistic-minecraft-texture-packs_GM479516143.pdfIn PDF document text
- http://mtsn31jkt.com/__statics/gudangsoal/files/wahoo-gaming-co-free-robux_GM431946152.pdfIn PDF document text
- https://mtsn31jkt.com/__statics/gudangsoal/files/play-roblox-on-google-for-free_GM431946152.pdfIn PDF document text
- http://mtsn31jkt.com/__statics/gudangsoal/files/coin-master-hack-spins-apk-download_GM406889139.pdfIn PDF document text
- http://mtsn31jkt.com/__statics/gudangsoal/files/free-coin-master-links_GM406889139.pdfIn PDF document text
- http://mtsn31jkt.com/__statics/gudangsoal/files/roblox-builders-club-free_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_002_off00003218.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3218	22540 bytes
SHA-256: `e022619a23227fa0c262641d9560bf25f3126ccb082908f6de6750524e571f11`
`font_01_sfnt_off00006460.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6460	18528 bytes
SHA-256: `f8dd2954f0f3bcbf2df1f6258498c603c5a9fb04d130006050f95c06de5614fa`

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