PDF malware analysis — malicious · bdf3dd0f80e25f8d

MALICIOUS

PDF

35.6 KB Created: 2021-07-03 13:55:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 34a1784f8cffebda38c653aee008fdf0 SHA-1: c62b46e11e4c3795d83c40e5e6d01c8e33123689 SHA-256: bdf3dd0f80e25f8d2675906ac433b39a600ae4c44313d1ce6f623f5ade53fa05

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.tw/app/431946152/roblox-hack-ios-game-hack PDF link annotation
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/minecraft-free-apk_GM479516143.pdfIn PDF document text
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/roblox-ro-piece-hacks_GM431946152.pdfIn PDF document text
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/wiki-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/how-to-get-hacks-on-minecraft_GM479516143.pdfIn PDF document text
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/minecraft-launcher-free_GM479516143.pdfIn PDF document text
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/cheat-commands-in-giant-simulator-roblox_GM431946152.pdfIn PDF document text
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/roblox-robux-giver-hack-download_GM431946152.pdfIn PDF document text
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/bloxpage-free-robux_GM431946152.pdfIn PDF document text
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/how-can-i-play-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/free-tiktok-likes-no-human-verification-or-downloading-apps_GM835599320.pdfIn PDF document text
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/coin-master-free-spins-2021-today_GM406889139.pdfIn PDF document text
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/roblox-verification_GM431946152.pdfIn PDF document text
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/minecraft-realms-free-codes_GM479516143.pdfIn PDF document text
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/free-robux-codes-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/combo-free-roblox_GM431946152.pdfIn PDF document text
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/coin-master-jackpot-hack_GM406889139.pdfIn PDF document text
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/link-coin-master_GM406889139.pdfIn PDF document text
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/get-free-followers-on-tiktok_GM835599320.pdfIn PDF document text
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
- https://www.roblox.com/.IIn 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_off0000354d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x354D	22456 bytes
SHA-256: `44594b535c24a5fa2d613e39260e09906fd63b9635da8b53217c9e1f02dd82ee`
`font_01_sfnt_off00006760.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6760	18656 bytes
SHA-256: `b3477c45a33cf632c9869a66aa1cf28bc54a9d968fdf25e87ed575c72fa2d7b2`

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