PDF malware analysis — malicious · e5c3fb6d31b7eecd

MALICIOUS

PDF

46.1 KB Created: 2021-06-03 08:39:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: c32a1777cf3a8b224643420326d6e1b0 SHA-1: d617fe25ea54786c6e0e426fe8f106718b02dc1d SHA-256: e5c3fb6d31b7eecd84b803b6a1959628ac9410380c614e0c0574bf290dd75441

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a lure for a game hack, directing users to a malicious URL. The ML classifier strongly indicated maliciousness, and the embedded URL is associated with a game hack lure. No scripts were extracted, but the document's primary function appears to be redirecting users to potentially malicious content.

Machine Learning

Nyx PDF Classifier malicious score 0.9864

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.online/app/406889139/coin-master-hack-version-2021-free-download-game-hack PDF link annotation
- http://www.myresidence.lu/userfiles/files/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
- http://www.myresidence.lu/userfiles/files/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
- http://www.myresidence.lu/userfiles/files/coin-master-hack-that-actually-works_GM406889139.pdfIn PDF document text
- http://www.myresidence.lu/userfiles/files/minecraft-free-play-no-download_GM479516143.pdfIn PDF document text
- http://www.myresidence.lu/userfiles/files/coin-master-pet-food-free_GM406889139.pdfIn PDF document text
- http://www.myresidence.lu/userfiles/files/minecraft-iphone-free_GM479516143.pdfIn PDF document text
- http://www.myresidence.lu/userfiles/files/free-robux-group-payouts_GM431946152.pdfIn PDF document text
- http://www.myresidence.lu/userfiles/files/coin-master-card-collection-hack-apk_GM406889139.pdfIn PDF document text
- http://www.myresidence.lu/userfiles/files/earn-free-robux-today_GM431946152.pdfIn PDF document text
- http://www.myresidence.lu/userfiles/files/free-robux-generator-2021-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
- http://www.myresidence.lu/userfiles/files/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
- http://www.myresidence.lu/userfiles/files/free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
- http://www.myresidence.lu/userfiles/files/best-minecraft-hacks_GM479516143.pdfIn PDF document text
- http://www.myresidence.lu/userfiles/files/roblox-cheat_GM431946152.pdfIn PDF document text
- http://www.myresidence.lu/userfiles/files/how-do-you-get-free-food-in-coin-master_GM406889139.pdfIn PDF document text
- http://www.myresidence.lu/userfiles/files/free-minecraft-bedrock_GM479516143.pdfIn PDF document text
- http://www.myresidence.lu/userfiles/files/minecraft-cheat-client_GM479516143.pdfIn PDF document text
- http://www.myresidence.lu/userfiles/files/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
- http://www.myresidence.lu/userfiles/files/coin-master-free-spins-link-download-free_GM406889139.pdfIn PDF document text
- http://www.myresidence.lu/userfiles/files/free-robux-without-human-verification-2021_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_004_off000056c2.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x56C2	25160 bytes
SHA-256: `0880d6332a565e99a7332048ee36748c615e9b9c64378f455ac78c0fef19efa4`
`font_01_sfnt_off00008f91.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8F91	18996 bytes
SHA-256: `92d9309ab276bc9aab9745226f7a970795db6d0c86763d97e38cf379742c13e0`

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