PDF malware analysis — malicious · 83abbd589efb6bcf

MALICIOUS

PDF

45.8 KB Created: 2021-05-12 23:31:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: a336e9b52894ac1bab39c6d14af18641 SHA-1: e8788baf21c240498800f48c25775f9606226f2c SHA-256: 83abbd589efb6bcf6d61e5661019df378ee66003f64b5883b3ce9749add4fdba

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 0.9432

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/official-coin-master-free-spins-game-hack PDF link annotation
- http://ellobo.com.ua/ckfinder/userfiles/files/robux-hack-no-verification_GM431946152.pdfIn PDF document text
- http://ellobo.com.ua/ckfinder/userfiles/files/free-spin-coin-master-link-2021_GM406889139.pdfIn PDF document text
- http://ellobo.com.ua/ckfinder/userfiles/files/minecraft-bedrock-hacks-windows-10_GM479516143.pdfIn PDF document text
- http://ellobo.com.ua/ckfinder/userfiles/files/coin-master-daily-free-spins-hack_GM406889139.pdfIn PDF document text
- http://ellobo.com.ua/ckfinder/userfiles/files/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
- http://ellobo.com.ua/ckfinder/userfiles/files/coin-master-free-gold-cards-link_GM406889139.pdfIn PDF document text
- http://ellobo.com.ua/ckfinder/userfiles/files/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
- http://ellobo.com.ua/ckfinder/userfiles/files/roblox-help-free-robux_GM431946152.pdfIn PDF document text
- http://ellobo.com.ua/ckfinder/userfiles/files/free-coins-coin-master-blog_GM406889139.pdfIn PDF document text
- http://ellobo.com.ua/ckfinder/userfiles/files/minecraft-pocket-edition-mods-for-free_GM479516143.pdfIn PDF document text
- http://ellobo.com.ua/ckfinder/userfiles/files/pixies-gigantic-coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
- http://ellobo.com.ua/ckfinder/userfiles/files/free-robux-without-verification-or-survey_GM431946152.pdfIn PDF document text
- http://ellobo.com.ua/ckfinder/userfiles/files/how-to-o-get-free-coin-master-spins_GM406889139.pdfIn PDF document text
- http://ellobo.com.ua/ckfinder/userfiles/files/how-to-get-free-coins-in-coin-master-game_GM406889139.pdfIn PDF document text
- http://ellobo.com.ua/ckfinder/userfiles/files/wurst-minecraft_GM479516143.pdfIn PDF document text
- http://ellobo.com.ua/ckfinder/userfiles/files/gamehunters-club-coin-master_GM406889139.pdfIn PDF document text
- http://ellobo.com.ua/ckfinder/userfiles/files/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
- http://ellobo.com.ua/ckfinder/userfiles/files/minecraft-free-online_GM479516143.pdfIn PDF document text
- http://ellobo.com.ua/ckfinder/userfiles/files/minecraft-pocket-edition-free-apk_GM479516143.pdfIn PDF document text
- http://ellobo.com.ua/ckfinder/userfiles/files/coin-master-online-hack-no-survey-no-password_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_off00004a03.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4A03	27000 bytes
SHA-256: `06d2f9ba7a984996d9784956abaf52f17d8aaed678e14d531243b55fd9cca6c1`
`font_01_sfnt_off000087d0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x87D0	2840 bytes
SHA-256: `3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676`
`font_02_sfnt_off00009181.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9181	17960 bytes
SHA-256: `566edd865edd8744df8e39a8001e850e6dcbcdadb3e6ad7cdaa37e096c94fcb6`

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