PDF malware analysis — malicious · 9e481f458f0783e7

MALICIOUS

PDF

34.8 KB Created: 2021-07-04 01:33:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18

MD5: 6545fcfaee3f6ba06fd1ab380537a0f3 SHA-1: 80821c8658c1db491f80cffa1ee72c5fa097ea91 SHA-256: 9e481f458f0783e77e4201ea2a5fc0de77a4d53385029fd512f4dd320568988d

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/406889139/coin-master-cheat-free-game-hack PDF link annotation
- http://bepquannhu.vn/upload/editor/files/roblox-how-to-hack-peoples-accounts_GM431946152.pdfIn PDF document text
- http://bepquannhu.vn/upload/editor/files/minecraft-xbox-one-free_GM479516143.pdfIn PDF document text
- http://bepquannhu.vn/upload/editor/files/coin-master-free-spin-facebook-link_GM406889139.pdfIn PDF document text
- http://bepquannhu.vn/upload/editor/files/script-hack-prison-life-roblox_GM431946152.pdfIn PDF document text
- http://bepquannhu.vn/upload/editor/files/how-to-get-roblox-credit-for-free_GM431946152.pdfIn PDF document text
- http://bepquannhu.vn/upload/editor/files/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
- http://bepquannhu.vn/upload/editor/files/roblox-skin-free_GM431946152.pdfIn PDF document text
- http://bepquannhu.vn/upload/editor/files/minecraft-free-trial_GM479516143.pdfIn PDF document text
- http://bepquannhu.vn/upload/editor/files/free-coin_GM406889139.pdfIn PDF document text
- http://bepquannhu.vn/upload/editor/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
- http://bepquannhu.vn/upload/editor/files/boko-no-roblox-hack_GM431946152.pdfIn PDF document text
- http://bepquannhu.vn/upload/editor/files/dantdm-gave-me-free-robux_GM431946152.pdfIn PDF document text
- http://bepquannhu.vn/upload/editor/files/ninja-legend-hack-roblox_GM431946152.pdfIn PDF document text
- http://bepquannhu.vn/upload/editor/files/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
- http://bepquannhu.vn/upload/editor/files/roblox-moderators_GM431946152.pdfIn PDF document text
- http://bepquannhu.vn/upload/editor/files/play-minecraft-free-online-no-download_GM479516143.pdfIn PDF document text
- http://bepquannhu.vn/upload/editor/files/coin-master-hack-facebook_GM406889139.pdfIn PDF document text
- http://bepquannhu.vn/upload/editor/files/body-building-roblox-weightlifting-hack_GM431946152.pdfIn PDF document text
- http://bepquannhu.vn/upload/editor/files/how-to-get-in-to-hacked-roblox-account_GM431946152.pdfIn PDF document text
- http://bepquannhu.vn/upload/editor/files/master-coin-free-spin_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_off000030d6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x30D6	23756 bytes
SHA-256: `99e70aadcac96f0fe0fa96fcb17af1c2c8edac0a4f34902f8a0c39d9c39d1de8`
`font_01_sfnt_off000065e7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x65E7	18164 bytes
SHA-256: `55eaa8c39803c9dd4095fb3a7b9e7181ae88cc5bd7376e23fd82d846a3866298`

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