PDF malware analysis — malicious · bdecd56f55da2ea0

MALICIOUS

PDF

35.6 KB Created: 2021-07-01 15:37:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: b911e84de7b57aef6f185611ca2af040 SHA-1: ade95845ee732a144db81647a2ee5cb626a18b45 SHA-256: bdecd56f55da2ea0c8a922be2a13a27dcd639f21c7d9e04e1ea241fe406b870f

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.co/app/431946152/glasses-roblox-free-game-hack PDF link annotation
- http://www.mrscoreboardsworld.com/uploaded_files/userfiles/files/hacked-game-roblox_GM431946152.pdfIn PDF document text
- http://www.mrscoreboardsworld.com/uploaded_files/userfiles/files/top-free-roblox-items_GM431946152.pdfIn PDF document text
- http://www.mrscoreboardsworld.com/uploaded_files/userfiles/files/games-like-minecraft-but-free_GM479516143.pdfIn PDF document text
- http://www.mrscoreboardsworld.com/uploaded_files/userfiles/files/free-robux-codes-no-verification_GM431946152.pdfIn PDF document text
- http://www.mrscoreboardsworld.com/uploaded_files/userfiles/files/microsoft-store-robux_GM431946152.pdfIn PDF document text
- http://www.mrscoreboardsworld.com/uploaded_files/userfiles/files/free-robux-no-verification-ipad_GM431946152.pdfIn PDF document text
- http://www.mrscoreboardsworld.com/uploaded_files/userfiles/files/free-aesthetic-stuff-on-roblox_GM431946152.pdfIn PDF document text
- http://www.mrscoreboardsworld.com/uploaded_files/userfiles/files/how-to-get-free-robux-2021-no-clickbait_GM431946152.pdfIn PDF document text
- http://www.mrscoreboardsworld.com/uploaded_files/userfiles/files/free-redeem-codes-for-roblox-2021_GM431946152.pdfIn PDF document text
- http://www.mrscoreboardsworld.com/uploaded_files/userfiles/files/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
- http://www.mrscoreboardsworld.com/uploaded_files/userfiles/files/free-unlimited-robux_GM431946152.pdfIn PDF document text
- http://www.mrscoreboardsworld.com/uploaded_files/userfiles/files/roblox-pro-hack_GM431946152.pdfIn PDF document text
- http://www.mrscoreboardsworld.com/uploaded_files/userfiles/files/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
- http://www.mrscoreboardsworld.com/uploaded_files/userfiles/files/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
- http://www.mrscoreboardsworld.com/uploaded_files/userfiles/files/free-roblox-accounts_GM431946152.pdfIn PDF document text
- http://www.mrscoreboardsworld.com/uploaded_files/userfiles/files/infinity-clicker-roblox-hack_GM431946152.pdfIn PDF document text
- http://www.mrscoreboardsworld.com/uploaded_files/userfiles/files/tiny-tanks-roblox-hack_GM431946152.pdfIn PDF document text
- http://www.mrscoreboardsworld.com/uploaded_files/userfiles/files/roblox-hacked-version-download_GM431946152.pdfIn PDF document text
- http://www.mrscoreboardsworld.com/uploaded_files/userfiles/files/monttechscom-coin-master-free-spins_GM406889139.pdfIn PDF document text
- http://www.mrscoreboardsworld.com/uploaded_files/userfiles/files/free-100-robux-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_off00003561.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3561	22480 bytes
SHA-256: `5ed840592e1b6bf668dd2a36cc4012464ab0ae28e78f9c19e37a23c095492299`
`font_01_sfnt_off0000674c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x674C	18652 bytes
SHA-256: `bb6573ddf83ab12bca89f406d17d04ab0c889562d635eead9bd2ea1f38ac83c1`

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