PDF malware analysis — malicious · a1b5e8b51a3b4801

MALICIOUS

PDF

35.3 KB Created: 2021-07-10 01:43:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: dfdb16ce9732eb5e8b3574eb7897d62b SHA-1: 62a16dab862a3997ff068c095e3c63f19162c567 SHA-256: a1b5e8b51a3b4801bdc1023f5cb9df124d9f3c5db426ecbdb61a61155e3fb5f3

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/431946152/free-robux-apk-game-hack PDF link annotation
- https://man2samarinda.com/__statics/gudangsoal/files/how-to-get-free-robux-without-any-verification_GM431946152.pdfIn PDF document text
- https://www.man2samarinda.com/__statics/gudangsoal/files/unlimited-spin-coin-master-hack_GM406889139.pdfIn PDF document text
- https://www.man2samarinda.com/__statics/gudangsoal/files/pop-slots-free-vegas-casino-slot-machine-game-coin-master_GM406889139.pdfIn PDF document text
- https://www.man2samarinda.com/__statics/gudangsoal/files/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://www.man2samarinda.com/__statics/gudangsoal/files/roblox-hack-client-april-2021_GM431946152.pdfIn PDF document text
- https://man2samarinda.com/__statics/gudangsoal/files/coin-master-hack-xyz-2021_GM406889139.pdfIn PDF document text
- https://man2samarinda.com/__statics/gudangsoal/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
- https://man2samarinda.com/__statics/gudangsoal/files/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
- https://man2samarinda.com/__statics/gudangsoal/files/minecraft-hack-2021_GM479516143.pdfIn PDF document text
- https://www.man2samarinda.com/__statics/gudangsoal/files/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.man2samarinda.com/__statics/gudangsoal/files/roblox-december-2021-cheat-engine-speed_GM431946152.pdfIn PDF document text
- https://www.man2samarinda.com/__statics/gudangsoal/files/minecraft-complete-handbook_GM479516143.pdfIn PDF document text
- https://www.man2samarinda.com/__statics/gudangsoal/files/old-roblox-accounts-for-free_GM431946152.pdfIn PDF document text
- https://man2samarinda.com/__statics/gudangsoal/files/free-robux-no-offers_GM431946152.pdfIn PDF document text
- https://www.man2samarinda.com/__statics/gudangsoal/files/download-minecraft-free-hiapphere_GM479516143.pdfIn PDF document text
- https://man2samarinda.com/__statics/gudangsoal/files/coin-master-free-spins-hack-download_GM406889139.pdfIn PDF document text
- https://man2samarinda.com/__statics/gudangsoal/files/free-robux-codes-not-used_GM431946152.pdfIn PDF document text
- https://www.man2samarinda.com/__statics/gudangsoal/files/how-many-tiktok-free-accounts_GM835599320.pdfIn PDF document text
- https://man2samarinda.com/__statics/gudangsoal/files/money-hack-ultimate-driving-roblox-2021_GM431946152.pdfIn PDF document text
- https://man2samarinda.com/__statics/gudangsoal/files/make-free-robux_GM431946152.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_off000031e2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x31E2	22852 bytes
SHA-256: `2896374f38bcbb0ea542c6127deeace222af70c8c58f707dfddd2ce842ef0c1e`
`font_01_sfnt_off00006505.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6505	19064 bytes
SHA-256: `e83e6ec4c124ed2d7ca7106d3550dd0cc1129fb3ff046dea9d423b5a0bd21ead`

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