PDF malware analysis — malicious · 90349e4e43014ff9

MALICIOUS

PDF

35.0 KB Created: 2021-07-05 16:21:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31

MD5: e376ca992c8e5b618cc86baadc3d2b42 SHA-1: 624ee1e60dd08eb8b3e36a88cc2ff5e7787b0b3b SHA-256: 90349e4e43014ff92fa17b3fb88a784b483f66602a3c1c434daa96831226f876

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game currency and hacks to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which likely serves as a gateway to further malicious content or downloads. The document's content and embedded URLs strongly suggest a phishing or scam campaign aimed at users interested in popular online games.

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/406889139/coin-master-free-spins-and-coins-link-today-game-hack In PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/coin-master-34-4-hack_GM406889139.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/free-minecraft-skins-java_GM479516143.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/roblox-free-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/free-spins-coin-master-links-blogger_GM406889139.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/how-to-get-minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/free-roblox-account-checker_GM431946152.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/how-to-hack-anime-cross-roblox_GM431946152.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/free-robux-cards-2021_GM431946152.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/free-minecraft-java-server_GM479516143.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/game-kit-how-to-earn-your-free-robux_GM431946152.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/is-windows-10-minecraft-free_GM479516143.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/free-robux-fire_GM431946152.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/free-robux-no-human-verification-2021-or-survey_GM431946152.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/roblox-microsoft-rewards_GM431946152.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/free-robux-websites-that-work_GM431946152.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/roblox-ninja-legends-free-vip-server_GM431946152.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/roblox-www-com_GM431946152.pdfIn PDF document text
- https://klp.com.tr/inc/uploads/userfiles/files/roblox-cheat-robux-2021-easy_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_off0000310c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x310C	22972 bytes
SHA-256: `03fc1e3dffd923c680786c70bb772925290777ec3674c69254863af670653a57`
`font_01_sfnt_off000064ca.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x64CA	18696 bytes
SHA-256: `a6f9ee4f31e630697269259bd77ba9f20f050f36d84dfdb118abf4b75a264952`

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