PDF malware analysis — malicious · 105403488de5884b

MALICIOUS

PDF

34.8 KB Created: 2021-06-26 14:41:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 233b5ce9d0430aa30cbd80f3e5b8d566 SHA-1: 118da3b7e9dab8da3f29d1417b4f3e270bf3e441 SHA-256: 105403488de5884b1a13212602a1dd687d88d91c92f8fe9782cc3f9eefcab1d7

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.co/app/431946152/roblox-robux-hack-no-survey-or-download-u-siad-tags-game-hack PDF link annotation
- https://xiangquan.com.tw/image/data/files/robux-hack-generator_GM431946152.pdfIn PDF document text
- https://xiangquan.com.tw/image/data/files/how-to-download-wurst_GM479516143.pdfIn PDF document text
- https://xiangquan.com.tw/image/data/files/coin-master-fb-free-spins-link_GM406889139.pdfIn PDF document text
- https://xiangquan.com.tw/image/data/files/2021-roblox-hack-website_GM431946152.pdfIn PDF document text
- https://xiangquan.com.tw/image/data/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
- https://xiangquan.com.tw/image/data/files/free-roblox-gift-card-codes-workind-in-2021_GM431946152.pdfIn PDF document text
- https://xiangquan.com.tw/image/data/files/free-robux-with-no-human-verification_GM431946152.pdfIn PDF document text
- https://xiangquan.com.tw/image/data/files/coin-master-hack-apk-33-download_GM406889139.pdfIn PDF document text
- https://xiangquan.com.tw/image/data/files/free-robux-not-fake_GM431946152.pdfIn PDF document text
- https://xiangquan.com.tw/image/data/files/coin-master-332-apk-free-download_GM406889139.pdfIn PDF document text
- https://xiangquan.com.tw/image/data/files/free-coin-coin-master_GM406889139.pdfIn PDF document text
- https://xiangquan.com.tw/image/data/files/roblox-avatar-free_GM431946152.pdfIn PDF document text
- https://xiangquan.com.tw/image/data/files/roblox-assassin_GM431946152.pdfIn PDF document text
- https://xiangquan.com.tw/image/data/files/coin-master-hack-iosgods_GM406889139.pdfIn PDF document text
- https://xiangquan.com.tw/image/data/files/groups-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
- https://xiangquan.com.tw/image/data/files/free-redeem-code-for-coin-master_GM406889139.pdfIn PDF document text
- https://xiangquan.com.tw/image/data/files/roblox-free-items-2021_GM431946152.pdfIn PDF document text
- https://xiangquan.com.tw/image/data/files/how-to-make-a-roblox-badge-for-free_GM431946152.pdfIn PDF document text
- https://xiangquan.com.tw/image/data/files/coin-master-unlimited-coins-hack-apk-download_GM406889139.pdfIn PDF document text
- https://xiangquan.com.tw/image/data/files/coin-master-free-spin-whatsapp-group_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
`font_00_sfnt_off00002f8c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2F8C	22268 bytes
SHA-256: `4c1b27d0972f590863209e7d0e72ced0c75726c08542f033141f7b13e591e863`
`font_01_sfnt_off00006106.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6106	19716 bytes
SHA-256: `de6b32f89c2c98ca212fdb392457b66b7eff957f06fe2839dcd9d6d2b0650cea`

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