PDF malware analysis — malicious · 5c68b11045893b78

MALICIOUS

PDF

34.5 KB Created: 2021-06-20 02:29:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 3b50167413d44b70c5b4126f279dfab7 SHA-1: 2e82de870e60ff825f2abcbdbca8fda209f7e98c SHA-256: 5c68b11045893b782c3b1cf87701cc84e2f0573aa2b656e4eca8a9936d8f5a84

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 0.9980

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.co/app/431946152/free-script-exucuter-roblox-game-hack PDF link annotation
- http://schrichte.de/images/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
- http://schrichte.de/images/how-to-get-free-robux-on-android_GM431946152.pdfIn PDF document text
- http://schrichte.de/images/free-limited-in-roblox_GM431946152.pdfIn PDF document text
- http://schrichte.de/images/free-minecraft-windows-10-with-java_GM479516143.pdfIn PDF document text
- http://schrichte.de/images/freespinandcoin-blogspot-coin-master_GM406889139.pdfIn PDF document text
- http://schrichte.de/images/minecraft-reach-hack_GM479516143.pdfIn PDF document text
- http://schrichte.de/images/minecraft-gun-games-free_GM479516143.pdfIn PDF document text
- http://schrichte.de/images/free-robux-no-apps_GM431946152.pdfIn PDF document text
- http://schrichte.de/images/coin-master-download_GM406889139.pdfIn PDF document text
- http://schrichte.de/images/c7-roblox-hack_GM431946152.pdfIn PDF document text
- http://schrichte.de/images/how-to-get-free-roebucks-in-roblox_GM431946152.pdfIn PDF document text
- http://schrichte.de/images/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
- http://schrichte.de/images/download-hacked-games-com-coin-master_GM406889139.pdfIn PDF document text
- http://schrichte.de/images/roblox-18_GM431946152.pdfIn PDF document text
- http://schrichte.de/images/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
- http://schrichte.de/images/pubg-uc-free-redeem-code_GM1330123889.pdfIn PDF document text
- http://schrichte.de/images/getting-my-roblox-account-hacked_GM431946152.pdfIn PDF document text
- http://schrichte.de/images/roblox-tracker_GM431946152.pdfIn PDF document text
- http://schrichte.de/images/robux-gratis_GM431946152.pdfIn PDF document text
- http://schrichte.de/images/roblox-murder-mystery-2-halloween-hack_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_off00002ee9.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x2EE9	22612 bytes
SHA-256: `8c95d01363f6cfd4ff4fc0749104c327f55ab725657049ee41117b7b88e9c1a8`
`font_01_sfnt_off00006153.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6153	19192 bytes
SHA-256: `26aa638c192c7d3eb4ecb1b049b0cbafc44e6f1daffdacf0206b871b5c1bf9fd`

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