PDF malware analysis — malicious · 0d2d8ec2643855ae

MALICIOUS

PDF

44.1 KB Created: 2021-05-18 03:42:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: e13cb20d5d86be1f87e2d16faf2906ee SHA-1: 54d120f9d4676513dca7f86dba85b3febcfebd23 SHA-256: 0d2d8ec2643855aeafeb3d9a972566d523d4595d8d8159c41f3ef41b58ad2a81

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 0.9969

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/roblox-promo-codes-2021-robux-game-hack PDF link annotation
- https://hotelyetihome.com/userfiles/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
- https://hotelyetihome.com/userfiles/files/roblox-exploit-download_GM431946152.pdfIn PDF document text
- https://hotelyetihome.com/userfiles/files/roblox-moderators_GM431946152.pdfIn PDF document text
- https://hotelyetihome.com/userfiles/files/free-minecraft-for-kids_GM479516143.pdfIn PDF document text
- https://hotelyetihome.com/userfiles/files/coin-master-hack-online-download_GM406889139.pdfIn PDF document text
- https://hotelyetihome.com/userfiles/files/coin-master-heaven-free-spins-link_GM406889139.pdfIn PDF document text
- https://hotelyetihome.com/userfiles/files/no-scam-free-robux_GM431946152.pdfIn PDF document text
- https://hotelyetihome.com/userfiles/files/free-group-roblox_GM431946152.pdfIn PDF document text
- https://hotelyetihome.com/userfiles/files/free-robux-hack_GM431946152.pdfIn PDF document text
- https://hotelyetihome.com/userfiles/files/free-coins-coin-master-blog_GM406889139.pdfIn PDF document text
- https://hotelyetihome.com/userfiles/files/free-robux-no-verification-no-download-2021_GM431946152.pdfIn PDF document text
- https://hotelyetihome.com/userfiles/files/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://hotelyetihome.com/userfiles/files/coin-master-hack-unlimited-spins-apk-download_GM406889139.pdfIn PDF document text
- https://hotelyetihome.com/userfiles/files/coin-master-mod-version-free-download-v344_GM406889139.pdfIn PDF document text
- https://hotelyetihome.com/userfiles/files/coin-master-free-gift-link-2021_GM406889139.pdfIn PDF document text
- https://hotelyetihome.com/userfiles/files/coin-master-free-coins-and-spins-hack_GM406889139.pdfIn PDF document text
- https://hotelyetihome.com/userfiles/files/free-coins_GM406889139.pdfIn PDF document text
- https://hotelyetihome.com/userfiles/files/coin-master-hack-ios-reddit_GM406889139.pdfIn PDF document text
- https://hotelyetihome.com/userfiles/files/free-minecraft-account-generator_GM479516143.pdfIn PDF document text
- https://hotelyetihome.com/userfiles/files/free-rare-cards-for-coin-master-christmas_GM406889139.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_off000049c1.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x49C1	26636 bytes
SHA-256: `6faa3176bdf4552b4c06436484b96b284e21e8a73dbb8059ff5040bf4939ad7e`
`font_01_sfnt_off00008818.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8818	18912 bytes
SHA-256: `78e5a4f925f7a7099a01314b73c68b79f9c6154f744724e21f80ba84a8cb6293`

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