PDF malware analysis — malicious · 6e110905b66794c3

MALICIOUS

PDF

45.9 KB Created: 2021-05-13 12:03:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20

MD5: 957b72c8bb7f342ed2f722b141314ca4 SHA-1: 060e4894e637ce05c5f1d2f1c0946735988a0dd6 SHA-256: 6e110905b66794c3351aaa241a777fe1ea570f3c3c8872ddc079dde66f3c2b76

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains multiple links to redirector infrastructure, masquerading as game hacks and generators. The primary malicious URL identified is https://netcdn.xyz/app/479516143/minecraft-gun-mod-download-free-game-hack. The document body, though heavily obfuscated, contains references to game-related content and the malicious URL, reinforcing the lure. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

Nyx PDF Classifier malicious score 0.9432

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 https://netcdn.xyz/app/479516143/minecraft-gun-mod-download-free-game-hack In PDF document text
- https://www.howard-avocats.com/assets/images/uploads/ckfinder/files/coin-master-free-link-2021_GM406889139.pdfIn PDF document text
- https://www.howard-avocats.com/assets/images/uploads/ckfinder/files/free-spin-coin-master-online_GM406889139.pdfIn PDF document text
- https://www.howard-avocats.com/assets/images/uploads/ckfinder/files/how-to-download-minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
- https://www.howard-avocats.com/assets/images/uploads/ckfinder/files/minecraft-xbox-free_GM479516143.pdfIn PDF document text
- https://www.howard-avocats.com/assets/images/uploads/ckfinder/files/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
- https://www.howard-avocats.com/assets/images/uploads/ckfinder/files/coin-master-hack-2021-free_GM406889139.pdfIn PDF document text
- https://www.howard-avocats.com/assets/images/uploads/ckfinder/files/free-robux-discord_GM431946152.pdfIn PDF document text
- https://www.howard-avocats.com/assets/images/uploads/ckfinder/files/how-do-you-earn-robux-on-roblox_GM431946152.pdfIn PDF document text
- https://www.howard-avocats.com/assets/images/uploads/ckfinder/files/how-to-change-your-username-on-roblox-for-free_GM431946152.pdfIn PDF document text
- https://www.howard-avocats.com/assets/images/uploads/ckfinder/files/free-robux-sites-2021_GM431946152.pdfIn PDF document text
- https://www.howard-avocats.com/assets/images/uploads/ckfinder/files/coin-master-hack-apk_GM406889139.pdfIn PDF document text
- https://www.howard-avocats.com/assets/images/uploads/ckfinder/files/coin-master-hack-pc-download_GM406889139.pdfIn PDF document text
- https://www.howard-avocats.com/assets/images/uploads/ckfinder/files/free-robux-without-verification_GM431946152.pdfIn PDF document text
- https://www.howard-avocats.com/assets/images/uploads/ckfinder/files/mcpe-master-hack-unlimited-coins_GM406889139.pdfIn PDF document text
- https://www.howard-avocats.com/assets/images/uploads/ckfinder/files/minecraft-pe-server-hosting-free_GM479516143.pdfIn PDF document text
- https://www.howard-avocats.com/assets/images/uploads/ckfinder/files/coin-master-32-hack-apk_GM406889139.pdfIn PDF document text
- https://www.howard-avocats.com/assets/images/uploads/ckfinder/files/coin-master-tiradas-gratis-link_GM406889139.pdfIn PDF document text
- https://www.howard-avocats.com/assets/images/uploads/ckfinder/files/coin-master-hoe-to-get-extra-free-spins_GM406889139.pdfIn PDF document text
- https://www.howard-avocats.com/assets/images/uploads/ckfinder/files/free-robux-kid-friendly-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.howard-avocats.com/assets/images/uploads/ckfinder/files/coin-master-hack-version-33-2_GM406889139.pdfIn PDF document text
- https://playhack.in/minecraftIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004c7e.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4C7E	24944 bytes
SHA-256: `33a23b13a141eb337d6183fc6d0804a25d18b505cb730347f3f718c83b00bdae`
`font_01_sfnt_off00008576.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8576	3156 bytes
SHA-256: `a21c0cf31f452bfc714670a671cd4ddbec58d97e7bc066c46099de8e778306b9`
`font_02_sfnt_off00009061.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9061	18428 bytes
SHA-256: `a1a6f3ae66b5d922a0a4092004751a3e9c0d20fb317db8442b8cbfc32d6436e9`

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