PDF malware analysis — malicious · 9a05a9952438b46a

MALICIOUS

PDF

34.8 KB Created: 2021-07-03 18:15:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 695d8f8477d544efda8864ba69cd6047 SHA-1: 17d4bd12d9e2b2afc94fa00b1a23c38f7287e3d8 SHA-256: 9a05a9952438b46a675a1c1cf2cfadacc16eccdf2c3aa889f3a4a1c7179decaa

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 0.9980

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 http://netcdn.tw/app/406889139/coin-master-code-for-free-spins-game-hack PDF link annotation
- https://dolphintour.vn/images/uploadsfiles/coin-master-money-hack_GM406889139.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/coin-master-spin-free_GM406889139.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/hack-account-roblox-wiki_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/coin-master-hack-xyz-download-free_GM406889139.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/6-ways-to-get-millions-of-robux-unlimited-free-robux_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/free-robux-website-that-works_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/bloxburg-roblox-hack-2021_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/village-4-coin-master_GM406889139.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/minecraft-skins-free-girl_GM479516143.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/roblox-money-hack-no-download_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/how-to-get-minecraft-pe-for-free_GM479516143.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/minecraft-116-free_GM479516143.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/114-hacks_GM479516143.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/free-tiktok-followers-no-human-verification_GM835599320.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/roblox-controversy_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/toolbox-for-minecraft_GM479516143.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/free-spins-coin-master-links_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_002_off00002fcd.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x2FCD	23620 bytes
SHA-256: `635a4a6ddc6a8bb7f9d6879a5ed73c47a59a383c3bb7f2227f172e1676ddb4d9`
`font_01_sfnt_off00006547.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6547	18348 bytes
SHA-256: `39fb35d261283ade411aa785f7d5e71fc568a3033ce7fb3bd164da5f03d5b1f7`

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