PDF malware analysis — malicious · ad19405eacd91ddc

MALICIOUS

PDF

42.4 KB Created: 2021-05-19 16:00:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 245635d03936b0f06418e5036b388d5d SHA-1: 91ac050ed16dc948a12a602d75fb51aec631f04f SHA-256: ad19405eacd91ddcbe87457a612fec5c3d2582875826c6c30d97c4b94ebe84e5

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/406889139/como-hackear-el-juego-coin-master-game-hack PDF link annotation
- http://umksn.pl/images/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
- http://umksn.pl/images/how-to-hack-coin-master-root_GM406889139.pdfIn PDF document text
- http://umksn.pl/images/blox-pink-robux-free_GM431946152.pdfIn PDF document text
- http://umksn.pl/images/free-coin-spin_GM406889139.pdfIn PDF document text
- http://umksn.pl/images/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
- http://umksn.pl/images/how-to-hack-coin-master-game-without-verification_GM406889139.pdfIn PDF document text
- http://umksn.pl/images/bloxpage-free-robux_GM431946152.pdfIn PDF document text
- http://umksn.pl/images/get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- http://umksn.pl/images/spin-coin-master_GM406889139.pdfIn PDF document text
- http://umksn.pl/images/can-you-get-free-tiktok-followers_GM835599320.pdfIn PDF document text
- http://umksn.pl/images/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
- http://umksn.pl/images/free-spins-for-coin-master-that-work_GM406889139.pdfIn PDF document text
- http://umksn.pl/images/www-robux-redeem_GM431946152.pdfIn PDF document text
- http://umksn.pl/images/pokemon-go-free-box-march-2021_GM1094591345.pdfIn PDF document text
- http://umksn.pl/images/free-robux-now_GM431946152.pdfIn PDF document text
- http://umksn.pl/images/reddit-coin-master-hack_GM406889139.pdfIn PDF document text
- http://umksn.pl/images/free-robux-com_GM431946152.pdfIn PDF document text
- http://umksn.pl/images/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
- http://umksn.pl/images/free-coin-master-spin-generator_GM406889139.pdfIn PDF document text
- http://umksn.pl/images/minecraft-for-ps3-free_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_off00004985.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4985	25080 bytes
SHA-256: `a0f4754720b0682608e4208eb6ec652762c4075b39ff44d3958eeec189fc2e26`
`font_01_sfnt_off00008266.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8266	18644 bytes
SHA-256: `d3c511751d4884b0e0ce286b66e2a6449449325efd521a4fb279194b2f80a8bb`

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