PDF malware analysis — malicious · ac14751643894f82

MALICIOUS

PDF

35.8 KB Created: 2021-07-08 07:41:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24

MD5: 8ff2bc8d6302fc995c581a67deef3e62 SHA-1: 1602c3f647c5964f36209c1143103dd702bf7133 SHA-256: ac14751643894f82c4616b029e09e7b75967efa1a7ea18aa6d8270de567bc260

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs, with a primary focus on a malicious redirector that promises game hacks. The document body and heuristics indicate a lure for game-related cheats, specifically targeting Coin Master and Roblox. The presence of multiple links to similar content suggests a campaign to drive traffic to potentially malicious sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/406889139/como-hackear-coin-master-2021-game-hack In PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/free-promocodes-roblox-october-2021_GM431946152.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/free-robux-hack-on-laptop-july-2021_GM431946152.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/rbxfree-com-free-robux_GM431946152.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/how-to-play-roblox-for-free-online_GM431946152.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/adopt-me-roblox-hacks_GM431946152.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/free-tiktok-followers_GM835599320.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/how-to-get-free-spins-on-coin-master-2021-ios_GM406889139.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/how-to-cheat-andget-things-that-cost-robux-without-robux_GM431946152.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/roblox-lua-scripts-hack_GM431946152.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/roblox-premium-free_GM431946152.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/how-to-get-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/free-robux-net_GM431946152.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/hack-coin-master-net_GM406889139.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/roblox-skins-boy-free_GM431946152.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/coin-master-hacks-for-iphone_GM406889139.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/how-to-hack-coin-master-spin-ios_GM406889139.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/free-robux-games-2021_GM431946152.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/coin-master-free-spins-link-2021-download_GM406889139.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/how-to-play-alone-esrly-acces-on-roblox-for-free_GM431946152.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/minecraft-windows-10-hacked-client_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_002_off000032f9.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x32F9	23464 bytes
SHA-256: `d1e2b7439272f2c789a4cec950984a379ce3669b0c0f304e2174b61b79d7a029`
`font_01_sfnt_off00006825.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6825	18664 bytes
SHA-256: `edb2623ad104b8b86e5bc1c5ef1b50296b358dc4eff6a16b1f212eab3163f8bc`

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