PDF malware analysis — malicious · bec860f3d1c000a4

MALICIOUS

PDF

43.8 KB Created: 2021-06-14 00:20:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 91549f77ef7b98023aa1f696509f1b47 SHA-1: 12d3c467364937f6240d1d9c8e749e346fac1215 SHA-256: bec860f3d1c000a4055c6963814e8b5a978e63edf3288be89af0b928201b1ffe

142 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous links to external websites, many of which are SEO-optimized to appear as game hack generators. The primary URL, http://netcdn.co/app/431946152/2021-how-to-get-free-faces-on-roblox-game-hack, is a clear lure for game-related exploits. The presence of a 'download button' heuristic further suggests a malicious workflow aimed at tricking users into downloading unwanted content.

Machine Learning

Nyx PDF Classifier malicious score 0.9969

Heuristics 5

Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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/431946152/2021-how-to-get-free-faces-on-roblox-game-hack PDF link annotation
- https://inspiration-modellbau.de/images/minecraft-nintendo-switch-digital-code-free_GM479516143.pdfIn PDF document text
- https://inspiration-modellbau.de/images/roblox-lua-script-snow-board-resort-hack_GM431946152.pdfIn PDF document text
- https://inspiration-modellbau.de/images/roblox-booga-booga-hack-mojo-update_GM431946152.pdfIn PDF document text
- https://inspiration-modellbau.de/images/how-to-get-gold-cards-on-coin-master-hack_GM406889139.pdfIn PDF document text
- https://inspiration-modellbau.de/images/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
- https://inspiration-modellbau.de/images/aplicacion-de-hacks-para-pc-en-roblox_GM431946152.pdfIn PDF document text
- https://inspiration-modellbau.de/images/roblox-hack-accont_GM431946152.pdfIn PDF document text
- https://inspiration-modellbau.de/images/mad-city-roblox-hack-script-pastebin_GM431946152.pdfIn PDF document text
- https://inspiration-modellbau.de/images/comment-hacker-des-robux_GM431946152.pdfIn PDF document text
- https://inspiration-modellbau.de/images/roblox-com-free-robux_GM431946152.pdfIn PDF document text
- https://inspiration-modellbau.de/images/coin-master-hack-version-download-2021-ios_GM406889139.pdfIn PDF document text
- https://inspiration-modellbau.de/images/roblox-free-hair-girl_GM431946152.pdfIn PDF document text
- https://inspiration-modellbau.de/images/how-to-install-roblox-jailbreak-hacks_GM431946152.pdfIn PDF document text
- https://inspiration-modellbau.de/images/roblox-cheatszip_GM431946152.pdfIn PDF document text
- https://inspiration-modellbau.de/images/robux-hack-generator-secret-roblox-hack-revealed_GM431946152.pdfIn PDF document text
- https://inspiration-modellbau.de/images/free-robux-gift-card-generator_GM431946152.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/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
- https://inspiration-modellbau.de/images/coding-script-for-free-robux_GM431946152.pdfIn PDF document text
- https://inspiration-modellbau.de/images/coin-master-hack-online-without-human-verification_GM406889139.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_003_off00004a79.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4A79	26288 bytes
SHA-256: `a248cff92466e54602ef7055db18cdd6a7726007b7dba3b3b4c9c669ca04de3e`
`font_01_sfnt_off00008718.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8718	18844 bytes
SHA-256: `77fcf206a49a6ccf54a4b3754141e1e42f4292337eb1f85134c0244e79b55fcf`

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