PDF malware analysis — malicious · 1d58ea3f4fdcbf68

MALICIOUS

PDF

55.1 KB Created: 2021-06-03 06:07:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: ebf52fb47aa6b85c94e5d045aa77f7b3 SHA-1: a804fcd1cf8712108fc251a39cf28e797f775b29 SHA-256: 1d58ea3f4fdcbf6847306095882c004e85b4a39c6d9cd5370937023ea0f76af7

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 0.9497

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.online/app/479516143/free-minecraft-server-game-hack PDF link annotation
- https://www.wetotravels.com/uploaded_files/userfiles/files/buxblast-com-robux_GM431946152.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/coin-master-hack-using-lucky-patcher_GM406889139.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/free-minecraft-skins-girl_GM479516143.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/free-robux-without-offers_GM431946152.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/coin-master-hack-spins-free_GM406889139.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/hack-spin-coin-master_GM406889139.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/free-minecraft-account-generator_GM479516143.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/game-hack-coin-master_GM406889139.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/coin-master-hack-spins-apk_GM406889139.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/master-coin-hack-mod_GM406889139.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/coin-master-spin-cheat_GM406889139.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/coin-master-free-soins_GM406889139.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/coin-master-hack-mod-apk-free-download_GM406889139.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.wetotravels.com/uploaded_files/userfiles/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off000054f0.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x54F0	25676 bytes
SHA-256: `8ab4a7768ca283998a022b6c978ac88bed10d251b53efb0b2982b5a2f092fbec`
`font_01_sfnt_off00008f1b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8F1B	7936 bytes
SHA-256: `218d53b68bdddb064f6fba4be822d5b3725ed1cef1a3b42796a8dd99c4a62f4e`
`font_02_sfnt_off0000a844.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA844	4232 bytes
SHA-256: `ab6320ab342704d2c5943abfba82ed4837bf2da871c91621741fd4cfd15c6ed5`
`font_03_sfnt_off0000b6d0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB6D0	17684 bytes
SHA-256: `971ebce79d03a5424fa8491ae570b1f65fe2ad06e00737069ab54be99501e2e8`

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