PDF malware analysis — malicious · 56feed591997d7c1

MALICIOUS

PDF

44.8 KB Created: 2021-05-13 20:47:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02

MD5: 02977d1ad78c250de7451a8fb645051f SHA-1: bc2042e4cee1f0310ce8081967183edf0cabbb67 SHA-256: 56feed591997d7c1963d69dfa0b5bfb6a2da233f6a72d873bbda91c75368b236

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 0.9632

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/free-links-for-coin-master-2021-game-hack PDF link annotation
- http://wwic.wales/uploads/files/files/coinmaster_GM406889139.pdfIn PDF document text
- http://wwic.wales/uploads/files/files/free-coin-master-app_GM406889139.pdfIn PDF document text
- http://wwic.wales/uploads/files/files/free-robux-picture_GM431946152.pdfIn PDF document text
- http://wwic.wales/uploads/files/files/how-many-villages-are-in-coin-master_GM406889139.pdfIn PDF document text
- http://wwic.wales/uploads/files/files/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
- http://wwic.wales/uploads/files/files/is-minecraft-java-edition-free_GM479516143.pdfIn PDF document text
- http://wwic.wales/uploads/files/files/free-robux-earn_GM431946152.pdfIn PDF document text
- http://wwic.wales/uploads/files/files/rbx-roblox_GM431946152.pdfIn PDF document text
- http://wwic.wales/uploads/files/files/blox-world-free-robux_GM431946152.pdfIn PDF document text
- http://wwic.wales/uploads/files/files/minecraft-pvp-hacks_GM479516143.pdfIn PDF document text
- http://wwic.wales/uploads/files/files/coin-master-free-link-daily_GM406889139.pdfIn PDF document text
- http://wwic.wales/uploads/files/files/minecraft-iphone-free_GM479516143.pdfIn PDF document text
- http://wwic.wales/uploads/files/files/free-minecraft-gift-card_GM479516143.pdfIn PDF document text
- http://wwic.wales/uploads/files/files/wurst-mc_GM479516143.pdfIn PDF document text
- http://wwic.wales/uploads/files/files/rare-free-links-to-coin-master_GM406889139.pdfIn PDF document text
- http://wwic.wales/uploads/files/files/minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
- http://wwic.wales/uploads/files/files/coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
- http://wwic.wales/uploads/files/files/pixies-gigantic-coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
- http://wwic.wales/uploads/files/files/coin-master-card-collection-link_GM406889139.pdfIn PDF document text
- http://wwic.wales/uploads/files/files/coin-master-hack-tuts_GM406889139.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004afe.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4AFE	24908 bytes
SHA-256: `b12be10509e535638e46ab2c34488424bf2edb3a867dea3c5b128c2782ebc880`
`font_01_sfnt_off000082d2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x82D2	2840 bytes
SHA-256: `3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676`
`font_02_sfnt_off00008c84.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8C84	18284 bytes
SHA-256: `a2acd8bf1a51d4e254a7633d59ee55714bf8557f87202f8b12d552e9cd1876aa`

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