PDF malware analysis — malicious · b929073382a5ad4e

MALICIOUS

PDF

35.9 KB Created: 2021-06-27 03:42:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27

MD5: e15e4e41065757c2c6e800511d4d7c1a SHA-1: 737b95aa6a5689a472ae859cb261033ee58b31fc SHA-256: b929073382a5ad4ea08e04b3eba720610697613e29cb8d2fb08865a9898c17ff

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document uses a lure of game hacks and free currency to entice users to click on embedded links. The primary link, http://netcdn.co/app/431946152/how-to-hack-on-roblox-saber-wars-alpha-game-hack, is likely a redirector to a malicious site. While no scripts were explicitly extracted, the PDF structure and embedded links suggest a potential for exploitation or further payload delivery.

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/how-to-hack-on-roblox-saber-wars-alpha-game-hack PDF link annotation
- https://beershebaschool.edu.np/ckfinder/userfiles/files/free-robux-just-put-in-your-password_GM431946152.pdfIn PDF document text
- https://beershebaschool.edu.np/ckfinder/userfiles/files/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
- https://beershebaschool.edu.np/ckfinder/userfiles/files/coin-master-hack-apk-facebook-login_GM406889139.pdfIn PDF document text
- https://beershebaschool.edu.np/ckfinder/userfiles/files/coin-master-hack-no-survey_GM406889139.pdfIn PDF document text
- https://beershebaschool.edu.np/ckfinder/userfiles/files/bloxpage-free-robux_GM431946152.pdfIn PDF document text
- https://beershebaschool.edu.np/ckfinder/userfiles/files/links-to-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://beershebaschool.edu.np/ckfinder/userfiles/files/roblox-hack-free-gui_GM431946152.pdfIn PDF document text
- https://beershebaschool.edu.np/ckfinder/userfiles/files/roblox-fnaf-rp-how-to-get-free-vip_GM431946152.pdfIn PDF document text
- https://beershebaschool.edu.np/ckfinder/userfiles/files/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
- https://beershebaschool.edu.np/ckfinder/userfiles/files/roblox-re_GM431946152.pdfIn PDF document text
- https://beershebaschool.edu.np/ckfinder/userfiles/files/ultimate-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://beershebaschool.edu.np/ckfinder/userfiles/files/daily-coin-master-free-spin-apk_GM406889139.pdfIn PDF document text
- https://beershebaschool.edu.np/ckfinder/userfiles/files/how-to-get-a-cape-in-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://beershebaschool.edu.np/ckfinder/userfiles/files/roblox-game-where-you-hack-computers_GM431946152.pdfIn PDF document text
- https://beershebaschool.edu.np/ckfinder/userfiles/files/free-coin-master-links_GM406889139.pdfIn PDF document text
- https://beershebaschool.edu.np/ckfinder/userfiles/files/bleu-roblox-hack_GM431946152.pdfIn PDF document text
- https://beershebaschool.edu.np/ckfinder/userfiles/files/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
- https://beershebaschool.edu.np/ckfinder/userfiles/files/coin-master-free-spins-and-chips_GM406889139.pdfIn PDF document text
- https://beershebaschool.edu.np/ckfinder/userfiles/files/coin-master-latest-mod-apk-free-download_GM406889139.pdfIn PDF document text
- https://beershebaschool.edu.np/ckfinder/userfiles/files/rblx-gg-free-robux_GM431946152.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_off000034de.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x34DE	22188 bytes
SHA-256: `7b4ba63899e137653be4dd51c7ebf116d308f6a08fdbac5b89688ab52bb9e719`
`font_01_sfnt_off0000663c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x663C	19360 bytes
SHA-256: `ad7174fb3c4132e8e2fb85c1f9f1eb1ef645c236d8c85bf912ddd7d5171846a5`

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