PDF malware analysis — malicious · 36e9224b32fc85ff

MALICIOUS

PDF

33.6 KB Created: 2021-06-22 16:53:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18

MD5: 68c5adf4f8fc26ef283e01bcb40cbb7d SHA-1: ab5d9c35b8f66c343836cdb057c884c1fdea3604 SHA-256: 36e9224b32fc85ffaeb0aaa1425c930b99c63c655e6f61e1af5cb9b3136c798d

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 0.9824

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-robux-2021-no-human-verification-game-hack PDF link annotation
- https://www.advancedcube.com/uploaded_files/userfiles/files/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/claimrobux-net_GM431946152.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/roblox-cheat-mad-city_GM431946152.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/roblox-rewards-robux_GM431946152.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/haktuts-coin-master-free-spin-today_GM406889139.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/how-to-get-free-roebucks-without-verification_GM431946152.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/free-coin-master-s_GM406889139.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/free-robux-mod_GM431946152.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/roblox-sword-hacks_GM431946152.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/coin-master-hack-without-verification-for-iphone_GM406889139.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/coin-master-mod-free-download_GM406889139.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/coin-master-hoe-to-get-extra-free-spins_GM406889139.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/rbxoffers-com-free-robux_GM431946152.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/minecraft-apk-free-download-016-0_GM479516143.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/invisibility-hack-roblox-jaulbreak_GM431946152.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/haktuts-coin-master-hack_GM406889139.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/how-to-get-free-obc-on-roblox-ios_GM431946152.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/get-free-robux-now_GM431946152.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/hack-menus-for-roblox_GM431946152.pdfIn PDF document text
- https://www.advancedcube.com/uploaded_files/userfiles/files/coin-master-card-hack-2021_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
`font_00_sfnt_off00002b8a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2B8A	22016 bytes
SHA-256: `86e2f3076044c0f0f668faae4b3bcc2b8a3c04a5fd0574ebeaca8b4b9b623bad`
`font_01_sfnt_off00005c6e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5C6E	19736 bytes
SHA-256: `415a8643b263bdb8a5e4ae51f1e0119ae52f9187a77a7c28158d674e6dc65c25`

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