PDF malware analysis — malicious · d24395d20afe4929

MALICIOUS

PDF

42.7 KB Created: 2021-05-17 02:06:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: bf01ee181d53881419c7b416b55570b4 SHA-1: 7abdee50667c4e0c2633cbd7270278beefcba149 SHA-256: d24395d20afe4929a0f2f268c8f626ce3ef4b80513e35f82a97e50e9ebc2383e

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 0.9971

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 https://netcdn.xyz/app/406889139/how-to-get-free-spins-on-coin-master-android-game-hack PDF link annotation
- https://itamleek.net/uploaded_files/userfiles/files/free-spins-coin-master-2021-today_GM406889139.pdfIn PDF document text
- https://itamleek.net/uploaded_files/userfiles/files/coin-master-guide-to-free-spins-and-rewards_GM406889139.pdfIn PDF document text
- https://itamleek.net/uploaded_files/userfiles/files/static-moonactive_GM406889139.pdfIn PDF document text
- https://itamleek.net/uploaded_files/userfiles/files/coin-master-hacks-and-cheats_GM406889139.pdfIn PDF document text
- https://itamleek.net/uploaded_files/userfiles/files/heroes-online-roblox_GM431946152.pdfIn PDF document text
- https://itamleek.net/uploaded_files/userfiles/files/free-spin-app-coin-master_GM406889139.pdfIn PDF document text
- https://itamleek.net/uploaded_files/userfiles/files/robux-hack-2021_GM431946152.pdfIn PDF document text
- https://itamleek.net/uploaded_files/userfiles/files/coin-master-hack-version-download-ios_GM406889139.pdfIn PDF document text
- https://itamleek.net/uploaded_files/userfiles/files/free-robux-no-apps_GM431946152.pdfIn PDF document text
- https://itamleek.net/uploaded_files/userfiles/files/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
- https://itamleek.net/uploaded_files/userfiles/files/minecraft-pocket-edition-apk-free-download_GM479516143.pdfIn PDF document text
- https://itamleek.net/uploaded_files/userfiles/files/free-coin-master-hacks-no-verification-or-survey_GM406889139.pdfIn PDF document text
- https://itamleek.net/uploaded_files/userfiles/files/rbxfree-com-free-robux_GM431946152.pdfIn PDF document text
- https://itamleek.net/uploaded_files/userfiles/files/ww-roblox-come_GM431946152.pdfIn PDF document text
- https://itamleek.net/uploaded_files/userfiles/files/free-robux-site_GM431946152.pdfIn PDF document text
- https://itamleek.net/uploaded_files/userfiles/files/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
- https://itamleek.net/uploaded_files/userfiles/files/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
- https://itamleek.net/uploaded_files/userfiles/files/how-to-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
- https://itamleek.net/uploaded_files/userfiles/files/coin-master-2021-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
- https://itamleek.net/uploaded_files/userfiles/files/buy-robux-free_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
`stream_003_off00004b4d.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4B4D	25108 bytes
SHA-256: `c64ec867c1a0774d5b9b89ccb4b3b27065f57b239618d8c749c764bf93e98a6b`
`font_01_sfnt_off000084b1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x84B1	18224 bytes
SHA-256: `e75a85775560c8380404af7b38c0f71a56f3669257afdef98786fb98fd154819`

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