PDF malware analysis — malicious · 4238090f64d24f34

MALICIOUS

PDF

36.7 KB Created: 2021-07-04 17:34:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18

MD5: 379e10e9e9e1963ee94ec95a27e55d57 SHA-1: a9eaa88f0b42d30b8f3817c2315fa03ee5d80038 SHA-256: 4238090f64d24f348cc4795116e05dbb20e39e834e312d372fb26f5c661babd2

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/hey-google-how-do-you-get-free-robux-game-hack PDF link annotation
- https://trustindoutama.com/assets/CKImages/files/free-chest-coin-master_GM406889139.pdfIn PDF document text
- https://trustindoutama.com/assets/CKImages/files/free-minecraft-windows-10-with-java_GM479516143.pdfIn PDF document text
- https://trustindoutama.com/assets/CKImages/files/how-to-cheat-on-roblox-tycoons_GM431946152.pdfIn PDF document text
- https://trustindoutama.com/assets/CKImages/files/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://trustindoutama.com/assets/CKImages/files/can-you-actually-get-free-robux_GM431946152.pdfIn PDF document text
- https://trustindoutama.com/assets/CKImages/files/proxo-cheat-roblox-download_GM431946152.pdfIn PDF document text
- https://trustindoutama.com/assets/CKImages/files/coin-master-hack-generator-tool_GM406889139.pdfIn PDF document text
- https://trustindoutama.com/assets/CKImages/files/free-tiktok-fans-no-verification_GM835599320.pdfIn PDF document text
- https://trustindoutama.com/assets/CKImages/files/free-promotion-codes-roblox_GM431946152.pdfIn PDF document text
- https://trustindoutama.com/assets/CKImages/files/roblox-online-account-hack-tool_GM431946152.pdfIn PDF document text
- https://trustindoutama.com/assets/CKImages/files/free-roblox-dominus-hack_GM431946152.pdfIn PDF document text
- https://trustindoutama.com/assets/CKImages/files/i-roblox-beeing-hacked_GM431946152.pdfIn PDF document text
- https://trustindoutama.com/assets/CKImages/files/coin-master-hack-club_GM406889139.pdfIn PDF document text
- https://trustindoutama.com/assets/CKImages/files/free-robux-coins-hack_GM431946152.pdfIn PDF document text
- https://trustindoutama.com/assets/CKImages/files/how-to-make-a-minecraft-client_GM479516143.pdfIn PDF document text
- https://trustindoutama.com/assets/CKImages/files/comment-cheat-dans-boku-no-roblox-remastered-roblox_GM431946152.pdfIn PDF document text
- https://trustindoutama.com/assets/CKImages/files/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
- https://trustindoutama.com/assets/CKImages/files/coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
- https://trustindoutama.com/assets/CKImages/files/free-robux-boombox_GM431946152.pdfIn PDF document text
- https://trustindoutama.com/assets/CKImages/files/coin-master-100-spin-slot_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_off0000368d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x368D	22532 bytes
SHA-256: `d32a5e7a214bf4a4b566a1102d181a1c7819b1c37972ad4eb380da0dbf264b76`
`font_01_sfnt_off000068cc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x68CC	19568 bytes
SHA-256: `c947cb9e4153dfb2ea198cd701ec4d5f338e29feb7802fd2debd87897cec7901`

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