PDF malware analysis — malicious · f688caa7b0d308ae

MALICIOUS

PDF

34.8 KB Created: 2021-07-04 14:09:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 8faccc6212f9b5657a69426d22dcf138 SHA-1: 3cfcd0def505a23e90e07f468aafcbbf7d2ab9ec SHA-256: f688caa7b0d308aeb91b5f505714fce3bb115e0f99716f6e08af0f19a8ac3a4f

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/how-to-get-free-followers-on-roblox-game-hack PDF link annotation
- http://www.peterbarsony.com/userfiles/files/is-roblox-free-on-ps4_GM431946152.pdfIn PDF document text
- http://www.peterbarsony.com/userfiles/files/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
- http://www.peterbarsony.com/userfiles/files/fast-robux-online_GM431946152.pdfIn PDF document text
- http://www.peterbarsony.com/userfiles/files/free-shirts-roblox-happydavey_GM431946152.pdfIn PDF document text
- http://www.peterbarsony.com/userfiles/files/roblox-hack-deutsch-auf-pc_GM431946152.pdfIn PDF document text
- http://www.peterbarsony.com/userfiles/files/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
- http://www.peterbarsony.com/userfiles/files/coin-master-free-spins-hack-ios_GM406889139.pdfIn PDF document text
- http://www.peterbarsony.com/userfiles/files/1x1x1x1-roblox-id_GM431946152.pdfIn PDF document text
- http://www.peterbarsony.com/userfiles/files/coin-master-hack-apk-with-fb-login-2021_GM406889139.pdfIn PDF document text
- http://www.peterbarsony.com/userfiles/files/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
- http://www.peterbarsony.com/userfiles/files/free-robux-wheel_GM431946152.pdfIn PDF document text
- http://www.peterbarsony.com/userfiles/files/how-to-get-minecraft-for-free-2021_GM479516143.pdfIn PDF document text
- http://www.peterbarsony.com/userfiles/files/give-me-robux-now_GM431946152.pdfIn PDF document text
- http://www.peterbarsony.com/userfiles/files/minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
- http://www.peterbarsony.com/userfiles/files/roblox-prison-life-hack_GM431946152.pdfIn PDF document text
- http://www.peterbarsony.com/userfiles/files/free-robux-hack-script-vermillion_GM431946152.pdfIn PDF document text
- http://www.peterbarsony.com/userfiles/files/roblox-free-skin_GM431946152.pdfIn PDF document text
- http://www.peterbarsony.com/userfiles/files/boost9-com-roblox-hack_GM431946152.pdfIn PDF document text
- http://www.peterbarsony.com/userfiles/files/how-to-hack-minecraft-pe_GM479516143.pdfIn PDF document text
- http://www.peterbarsony.com/userfiles/files/pubg-770-uc-ne-kadar_GM1330123889.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_off000030eb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x30EB	22632 bytes
SHA-256: `35295c4bce3281cd7c9f43f04d9566f135f837f659bda4b8856e1d7a2075559d`
`font_01_sfnt_off00006363.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6363	18920 bytes
SHA-256: `f2fcdfdcf594b1f6c495eea0ecf7c0fb12bb31f20525b237f507cbd2c98efb4c`

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