PDF malware analysis — malicious · 5c0f7501d32e7ba6

MALICIOUS

PDF

42.2 KB Created: 2021-05-10 21:05:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24

MD5: 6173bef89775e20252df8498a7e06547 SHA-1: 230c36f607c4ec809867b5fa97f70b03a813c2ac SHA-256: 5c0f7501d32e7ba6c77848fbe3ae478280a63ee37ba24c406134a50df7cb1614

200 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document employs a fake CAPTCHA lure to trick users into interacting with malicious links. The primary link, https://netcdn.xyz/app/406889139/coin-master-hack-app-android-download-game-hack, is identified as a malicious redirector. The document's structure and embedded links suggest an attempt to deliver a second-stage payload, likely through a drive-by download or exploit, masquerading as a game hack or generator.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

Heuristics 5

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.
Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA

Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
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/406889139/coin-master-hack-app-android-download-game-hack In PDF document text
- http://www.lorengindonesia.com/new/public/ckfinder/userfiles/files/mobihack-roblox-hack_GM431946152.pdfIn PDF document text
- http://www.lorengindonesia.com/new/public/ckfinder/userfiles/files/free-gifts-coin-master_GM406889139.pdfIn PDF document text
- http://www.lorengindonesia.com/new/public/ckfinder/userfiles/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
- http://www.lorengindonesia.com/new/public/ckfinder/userfiles/files/free-links-to-coin-master_GM406889139.pdfIn PDF document text
- http://www.lorengindonesia.com/new/public/ckfinder/userfiles/files/roblox-redeem_GM431946152.pdfIn PDF document text
- http://www.lorengindonesia.com/new/public/ckfinder/userfiles/files/free-spins-coin-master-2021-today_GM406889139.pdfIn PDF document text
- http://www.lorengindonesia.com/new/public/ckfinder/userfiles/files/how-to-get-free-robux-youtube_GM431946152.pdfIn PDF document text
- http://www.lorengindonesia.com/new/public/ckfinder/userfiles/files/http-bitly-coin-master-free-2021-spins_GM406889139.pdfIn PDF document text
- http://www.lorengindonesia.com/new/public/ckfinder/userfiles/files/free-rewards-coin-master_GM406889139.pdfIn PDF document text
- http://www.lorengindonesia.com/new/public/ckfinder/userfiles/files/free-robux-codes-generator-no-verification_GM431946152.pdfIn PDF document text
- http://www.lorengindonesia.com/new/public/ckfinder/userfiles/files/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
- http://www.lorengindonesia.com/new/public/ckfinder/userfiles/files/free-roblox-clothes-girl_GM431946152.pdfIn PDF document text
- http://www.lorengindonesia.com/new/public/ckfinder/userfiles/files/coin-master-free-soins_GM406889139.pdfIn PDF document text
- http://www.lorengindonesia.com/new/public/ckfinder/userfiles/files/coin-master-free-shield_GM406889139.pdfIn PDF document text
- http://www.lorengindonesia.com/new/public/ckfinder/userfiles/files/coin-master-free-spin-and-coin-link-2021-today_GM406889139.pdfIn PDF document text
- http://www.lorengindonesia.com/new/public/ckfinder/userfiles/files/coin-master-fan-club_GM406889139.pdfIn PDF document text
- http://www.lorengindonesia.com/new/public/ckfinder/userfiles/files/coin-master-20-free-spins-link-2021_GM406889139.pdfIn PDF document text
- http://www.lorengindonesia.com/new/public/ckfinder/userfiles/files/free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
- http://www.lorengindonesia.com/new/public/ckfinder/userfiles/files/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
- http://www.lorengindonesia.com/new/public/ckfinder/userfiles/files/coin-master-free-spin-link-app_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
`stream_003_off000049d1.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x49D1	24396 bytes
SHA-256: `7c0a4b775caba3ed85394c37309057d03cd8c85221ea098e6b36fe327916b59e`
`font_01_sfnt_off000081fb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x81FB	18472 bytes
SHA-256: `ce710c1ea70bd19d40b451a7d18c4a8a6d5bae3786b43e0834e6491f7024c8b0`

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