PDF malware analysis — malicious · a19c2cd14e18f8c3

MALICIOUS

PDF

42.2 KB Created: 2021-05-14 07:03:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 7f741c484f4a6c2f3932105306212b0e SHA-1: 48037915e2d4bde980bfd3219434ab2c29c76105 SHA-256: a19c2cd14e18f8c3cd095b1099f84f7d7de4eb7b2580be10f5741fbf1d82cf58

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 0.9971

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/431946152/free-robux-exe-game-hack PDF link annotation
- https://elite-house.su/images/coin-master-hack-september-2021_GM406889139.pdfIn PDF document text
- https://elite-house.su/images/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
- https://elite-house.su/images/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
- https://elite-house.su/images/daily-free-spin-coin-master-link_GM406889139.pdfIn PDF document text
- https://elite-house.su/images/free-roblox-card_GM431946152.pdfIn PDF document text
- https://elite-house.su/images/coin-master-card-hack-app_GM406889139.pdfIn PDF document text
- https://elite-house.su/images/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdfIn PDF document text
- https://elite-house.su/images/oprewards-free-robux_GM431946152.pdfIn PDF document text
- https://elite-house.su/images/roblox-hack-game_GM431946152.pdfIn PDF document text
- https://elite-house.su/images/free-coin-master-credit_GM406889139.pdfIn PDF document text
- https://elite-house.su/images/coin-master-free-spin-best-link_GM406889139.pdfIn PDF document text
- https://elite-house.su/images/hacked-roblox-game_GM431946152.pdfIn PDF document text
- https://elite-house.su/images/hack-to-send-gold-cards-on-coin-master_GM406889139.pdfIn PDF document text
- https://elite-house.su/images/free-robux-no-verification-or-survey-2021_GM431946152.pdfIn PDF document text
- https://elite-house.su/images/flip-master-coins-hack_GM406889139.pdfIn PDF document text
- https://elite-house.su/images/buy-robux-free_GM431946152.pdfIn PDF document text
- https://elite-house.su/images/op-rewards-free-robux_GM431946152.pdfIn PDF document text
- https://elite-house.su/images/how-do-i-get-robux_GM431946152.pdfIn PDF document text
- https://elite-house.su/images/hacks-roblox_GM431946152.pdfIn PDF document text
- https://elite-house.su/images/free-minecraft-thumbnails_GM479516143.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_off00004886.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4886	25700 bytes
SHA-256: `515b42d4707d7b00c54823ff13ef22e3139a934c9d5fac91f8cfbf13cb76ef29`
`font_01_sfnt_off000083a3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x83A3	18012 bytes
SHA-256: `1e3fda203f08fe42ab00f6cef97e605bb68f7e374108f28afe3c353055d0c9d6`

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