PDF malware analysis — malicious · db4cc8b4a9e07773

MALICIOUS

PDF

35.1 KB Created: 2021-06-25 22:03:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-11

MD5: 8c9af1dcf2085257e77f3df3a952adf1 SHA-1: 66e93df703ebdf7ef10b64086effaa5c46a9f68e SHA-256: db4cc8b4a9e07773aaed6174ba2a4ac9ed1b4931be024e9f06a654a00a541b75

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains a lure related to game hacks and cheats, specifically mentioning Roblox and Minecraft. It includes a critical link to a known malicious redirector, http://netcdn.co/app/431946152/roblox-money-cheat-codes-xbox-one-game-hack, which is designed to lead users to potentially harmful content. The ML classifier also strongly indicated maliciousness.

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.co/app/431946152/roblox-money-cheat-codes-xbox-one-game-hack In PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/is-minecraft-free-on-computer_GM479516143.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/roblox-cheat-engine-money-hack_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/minecraft-free-android_GM479516143.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/how-to-change-your-name-in-roblox-for-free_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/free-robux-no-survey-no-download-no-human-verification-2021_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/how-to-win-free-robux_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/free-pet-roblox-grow-a-candy-cane_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/how-to-get-free-robux-without-any-verification_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/coin-master-hack-tool-without-verification_GM406889139.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/roblox-card-code-hack_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/free-robux-offers_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/minecraft-account-hacked_GM479516143.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/free-robux-map-2021_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/toolbox-apk_GM479516143.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/how-to-get-free-robux-no-survey-or-download-2021_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/how-to-speed-hack-in-roblox-jailbreak-march-2021_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/coin-master-game-hack-kaise-kare_GM406889139.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/cool-avatars-roblox-free_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/tiktok-followers-generator-free_GM835599320.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
`font_00_sfnt_off000032c0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x32C0	22012 bytes
SHA-256: `1fb5b805f79f37b9303a7e8c5d972bbff8953f263351d547a102588d40be3a90`
`font_01_sfnt_off0000633a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x633A	19308 bytes
SHA-256: `9d3b6bd61788089ddaf4bc8c18b305f45f4ef1b78978223de9acd82a89f08ee8`

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