PDF malware analysis — malicious · 61e04eb09738f0a9

MALICIOUS

PDF

47.7 KB Created: 2021-05-31 07:17:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 84f88e67698db170ec4eca5fb6771619 SHA-1: 2a3b7e8f0bfa109b95dfdd9606ee090c73db1dda SHA-256: 61e04eb09738f0a9e54b37b7e9dae4ec721ca6b1e9326bf055f1663101c4c525

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 0.8017

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/835599320/hack-tiktok-fans-free-game-hack PDF link annotation
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdfIn PDF document text
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/hacker-minecraft-song_GM479516143.pdfIn PDF document text
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdfIn PDF document text
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/make-free-robux_GM431946152.pdfIn PDF document text
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/free-spins-for-coin-master-app_GM406889139.pdfIn PDF document text
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/rbx-free-robux_GM431946152.pdfIn PDF document text
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/free-robux-generator_GM431946152.pdfIn PDF document text
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/tiktok-for-free_GM835599320.pdfIn PDF document text
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/roblox-fly-hack_GM431946152.pdfIn PDF document text
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/free-robux-scams_GM431946152.pdfIn PDF document text
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdfIn PDF document text
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/tiktok-fans-free_GM835599320.pdfIn PDF document text
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/robux-gift-card-free_GM431946152.pdfIn PDF document text
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/minecraft-free-no-download_GM479516143.pdfIn PDF document text
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/free-minecraft-worlds_GM479516143.pdfIn PDF document text
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/free-games-like-minecraft_GM479516143.pdfIn PDF document text
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/roblox-land-free-robux_GM431946152.pdfIn PDF document text
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
- https://www.ecegrants.on.ca/wp-content/uploads/fsqm-files/how-do-you-get-free-robux_GM431946152.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_off000051a0.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x51A0	26780 bytes
SHA-256: `2981ccdc27a1144c6f4e36e78b4193808a52a890b02b29e6c3b9a5649a180d57`
`font_01_sfnt_off00008e90.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8E90	3124 bytes
SHA-256: `d6dd29adb69da7f9a23a5e3791282a61e2f811794f560a0c409c8747766d9102`
`font_02_sfnt_off0000994a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x994A	17684 bytes
SHA-256: `3b18324811ff9b2016b67c954de883c0131a9d703a91aa0a24a49898f2a8c27e`

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