PDF malware analysis — malicious · 46c77502edfc9f71

MALICIOUS

PDF

34.1 KB Created: 2021-07-06 07:41:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27

MD5: 0ad4daf7d7716c9adbb10cd0d36b9b7d SHA-1: a4b4a22625133a19874cc02c003386acf384723a SHA-256: 46c77502edfc9f71fddbb5c0c777c96d179a84d5d0f7da1661d5c08ae2f53677

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document employs a common lure of "free generator / game hack" content to entice users. It contains multiple links to known malicious redirector infrastructure, including http://netcdn.tw/app/479516143/how-do-you-download-minecraft-for-free-game-hack. The presence of these links and the overall theme strongly suggest a phishing or scamming attempt, likely leading to further malicious content or malware downloads. No scripts were extracted, but the document's structure and embedded URLs are indicative of a malicious campaign.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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
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/479516143/how-do-you-download-minecraft-for-free-game-hack In PDF document text
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/free-robux-rewards_GM431946152.pdfIn PDF document text
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/free-robux-codes-no-survey-2021_GM431946152.pdfIn PDF document text
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/free-coins-coin-master_GM406889139.pdfIn PDF document text
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/tiktok-free-stuff_GM835599320.pdfIn PDF document text
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/free-gift-card-on-roblox_GM431946152.pdfIn PDF document text
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/roblox-cape-free_GM431946152.pdfIn PDF document text
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/free-limiteds-roblox_GM431946152.pdfIn PDF document text
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/prison-breaker-13-roblox-hack_GM431946152.pdfIn PDF document text
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/why-does-roblox-servers-shutdown-when-cheat-engine-is-on_GM431946152.pdfIn PDF document text
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/tycoon-simulator-hack-roblox_GM431946152.pdfIn PDF document text
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/free-roblox-download-on-xbox-one_GM431946152.pdfIn PDF document text
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/free-roblox-avatar-ideas_GM431946152.pdfIn PDF document text
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/script-for-free-robux_GM431946152.pdfIn PDF document text
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/roblox-robux-codes-2021_GM431946152.pdfIn PDF document text
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/www-coin-master_GM406889139.pdfIn PDF document text
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/robux-free-c_GM431946152.pdfIn PDF document text
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/coin-master-unlimited-free-spins_GM406889139.pdfIn PDF document text
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/coin-master-332-apk-free-download_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_off00002f33.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2F33	22440 bytes
SHA-256: `8c219ad382517dc46ea3a164df82fabccd8f8cd3a6f5eef4c70ecbc9b5c41d63`
`font_01_sfnt_off000060af.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x60AF	18880 bytes
SHA-256: `ae8a28a4719fe920465bfa101b0c55ce4e50a49314e3e01958f41ab81cd87400`

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