Malicious PDF — malware analysis report

Static analysis result for SHA-256 50b03fc78d1fbd26…

MALICIOUS

PDF

43.8 KB Created: 2021-05-18 03:05:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 25a093478311638a89d71ed5bb5e2ad2 SHA-1: 919e12989f8adc3792cbc60f1613973fe894c83c SHA-256: 50b03fc78d1fbd269d32d64725e1e70a77e31ab6aa9325c1f3162d29e1c6c490
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains multiple links that are identified as lures for game hacks and free in-game currency. The primary link, 'https://netcdn.xyz/app/406889139/apps-to-hack-coin-master-game-hack', strongly suggests a malicious intent to redirect users to potentially harmful content. The presence of a visual download button further supports the deceptive nature of the document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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 https://netcdn.xyz/app/406889139/apps-to-hack-coin-master-game-hack PDF link annotation
    • https://fordogtrainers.mx:443/images/coin-master-free-spins-and-coins-haktuts_GM406889139.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/avatar-the-last-airbender-roblox_GM431946152.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/coin-master-real-free-spins_GM406889139.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/coin-master-35-16-hack-apk_GM406889139.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/free-robux-gift-card-generator_GM431946152.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/free-shirt-roblox_GM431946152.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/free-robux-gen_GM431946152.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/free-spin-coin_GM406889139.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/coin-master-free-spins-ios-app_GM406889139.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/rewards-robux_GM431946152.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/redeem-roblox-card-free_GM431946152.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/free-robux-codes-not-used_GM431946152.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/win-free-robux_GM431946152.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/wurst-18_GM479516143.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/how-to-watch-ads-for-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000456c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x456C 25240 bytes
SHA-256: 81ef07655f03e70510972ef76c5a613c541a9337a64b5c14580f47bb091ac3cb
font_01_sfnt_off00007ec7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EC7 3204 bytes
SHA-256: 34e186eaedd0abe30d9918006f165105e5268ee5cd317aca3337fe6c60666134
font_02_sfnt_off000089ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89CA 17892 bytes
SHA-256: ec9c2c954b0ae415002c25bf965fc53f3e3020b30477345a3b66b9e13b139acf

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