PDF malware analysis — malicious · e2f25bc1bdc17cfe

MALICIOUS

PDF

42.9 KB Created: 2021-05-17 06:07:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27

MD5: 7a91e6be1aa0d87cc7d10741c944feec SHA-1: df05c0ba00dc268ea2c2f60ca39b07d272f03283 SHA-256: e2f25bc1bdc17cfecbf99af22a2791d4045ec0c8529d169708aea4125ad199f7

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple links that redirect to websites advertising game hacks and generators, a common lure for distributing malware. The ML classifier also flagged the document as malicious with high confidence. The primary malicious URL identified is https://netcdn.xyz/app/406889139/apk-hack-coin-master-game-hack.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

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/apk-hack-coin-master-game-hack PDF link annotation
- https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/free-game-pack-with-google-play-coin-master_GM406889139.pdfIn PDF document text
- https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/roblox-e-free_GM431946152.pdfIn PDF document text
- https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/coin-master-game-free-download_GM406889139.pdfIn PDF document text
- https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/minecraft-toolbox-premium-apk_GM479516143.pdfIn PDF document text
- https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/minecraft-bedrock-hacks_GM479516143.pdfIn PDF document text
- https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/minecraft-logo-maker-free_GM479516143.pdfIn PDF document text
- https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/roblox-script-hacks_GM431946152.pdfIn PDF document text
- https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/how-to-get-free-robux-fast_GM431946152.pdfIn PDF document text
- https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/roblox-free-printables_GM431946152.pdfIn PDF document text
- https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
- https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/coin-master-3rd-village-free-2021-gift-card_GM406889139.pdfIn PDF document text
- https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
- https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/uprobuxcom-free-robux_GM431946152.pdfIn PDF document text
- https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/roblox-free-robux_GM431946152.pdfIn PDF document text
- https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/coin-master-date-and-time-hack_GM406889139.pdfIn PDF document text
- https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/coin-master-free-spins-link-quora_GM406889139.pdfIn PDF document text
- https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/free-minecraft-hosting-24-7_GM479516143.pdfIn PDF document text
- https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/android-coin-master-hack-2021_GM406889139.pdfIn PDF document text
- https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/free-robux-apk_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004b47.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4B47	25904 bytes
SHA-256: `8a420c51bce80db34af5294b2be71ba2b47ee81bcc75dc7e5e15da82998b7660`
`font_01_sfnt_off00008675.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8675	17892 bytes
SHA-256: `29b317de1113fa5a8b20650469625d6252f64c4fdcb1a9e53b6a9f80643d2b66`

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