PDF malware analysis — malicious · ff772c0b004a8f2e

MALICIOUS

PDF

43.8 KB Created: 2021-05-17 16:35:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: f9157aa65b77cea09fda578781a70138 SHA-1: 58f7a6edfd81118e65e5acc42e182e2e8fe71023 SHA-256: ff772c0b004a8f2e92883680f78bb95ddef614d3827560d7e8fdda79ff2375cc

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a lure for a "Coin Master Hack" which redirects to a malicious URL. The ML classifier also flagged this PDF as malicious. The embedded URLs suggest a phishing or scam attempt, likely to trick users into downloading further malware or providing credentials.

Machine Learning

Nyx PDF Classifier malicious score 0.9648

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/coin-master-hack-ios-reddit-game-hack PDF link annotation
- http://mklista.ru/images/coin-master-apk-hack-download_GM406889139.pdfIn PDF document text
- http://mklista.ru/images/coin-master-online-hack-generator_GM406889139.pdfIn PDF document text
- http://mklista.ru/images/mcpe-com_GM479516143.pdfIn PDF document text
- http://mklista.ru/images/get-free-cards-in-coin-master_GM406889139.pdfIn PDF document text
- http://mklista.ru/images/roblox-free-body_GM431946152.pdfIn PDF document text
- http://mklista.ru/images/roblox-hacked-version_GM431946152.pdfIn PDF document text
- http://mklista.ru/images/coin-master-time-speed-hack_GM406889139.pdfIn PDF document text
- http://mklista.ru/images/coinmaster-rewards_GM406889139.pdfIn PDF document text
- http://mklista.ru/images/how-to-get-free-pet-food-in-coin-master_GM406889139.pdfIn PDF document text
- http://mklista.ru/images/coin-master-hack-org_GM406889139.pdfIn PDF document text
- http://mklista.ru/images/real-robux-codes_GM431946152.pdfIn PDF document text
- http://mklista.ru/images/roblox-people-girl_GM431946152.pdfIn PDF document text
- http://mklista.ru/images/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
- http://mklista.ru/images/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
- http://mklista.ru/images/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
- http://mklista.ru/images/daily-free-spin-link-in-coin-master_GM406889139.pdfIn PDF document text
- http://mklista.ru/images/coin-master-free-items_GM406889139.pdfIn PDF document text
- http://mklista.ru/images/free-coin-master-account_GM406889139.pdfIn PDF document text
- http://mklista.ru/images/coin-master-free-spins-hack-without-human-verification_GM406889139.pdfIn PDF document text
- http://mklista.ru/images/roblox-robux-page_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_off000046b5.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x46B5	24760 bytes
SHA-256: `88929fe309c344b5587f5171c3fadcc2a282dff45981d911adadba4111a5c620`
`font_01_sfnt_off00007fbc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7FBC	2840 bytes
SHA-256: `3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676`
`font_02_sfnt_off0000896d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x896D	17888 bytes
SHA-256: `f6db0d5ce37e689a46ceb71450432421ac9d8148bbd676fee9db03c905ab63a7`

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