Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e562e97ebc3026e…

MALICIOUS

PDF

43.9 KB Created: 2021-05-13 13:24:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 553ed18786fbf6f4cdc6d80bef00f2cd SHA-1: c96bed59af90fc5187352b1f2ae7b74158e9c5b3 SHA-256: 7e562e97ebc3026e374ea06433f003ae45fd032246da2485c9b2692567a5d757
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirector infrastructure, specifically promoting "game hacks" and "generators". The primary redirector URL is https://netcdn.xyz/app/406889139/coin-master-pro-hack-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a social engineering attack aimed at tricking users into visiting malicious sites, likely for further malware delivery or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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/406889139/coin-master-pro-hack-game-hack In PDF document text
    • http://akvamaster.com.ua/images/minecraft-name-tag-hacks_GM479516143.pdfIn PDF document text
    • http://akvamaster.com.ua/images/clean-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://akvamaster.com.ua/images/minecraft-free-version_GM479516143.pdfIn PDF document text
    • http://akvamaster.com.ua/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://akvamaster.com.ua/images/coin-master-hack-ios_GM406889139.pdfIn PDF document text
    • http://akvamaster.com.ua/images/rbx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://akvamaster.com.ua/images/websites-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://akvamaster.com.ua/images/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
    • http://akvamaster.com.ua/images/coin-master-free-spins-no-verification_GM406889139.pdfIn PDF document text
    • http://akvamaster.com.ua/images/best-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://akvamaster.com.ua/images/coin-master-hacks-android_GM406889139.pdfIn PDF document text
    • http://akvamaster.com.ua/images/free-spins-on-coin-masters_GM406889139.pdfIn PDF document text
    • http://akvamaster.com.ua/images/how-do-you-install-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://akvamaster.com.ua/images/daily-free-spin-coin-master-link_GM406889139.pdfIn PDF document text
    • http://akvamaster.com.ua/images/hacks-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://akvamaster.com.ua/images/coin-master-hack-tool-v1-9-download-free-pc_GM406889139.pdfIn PDF document text
    • http://akvamaster.com.ua/images/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://akvamaster.com.ua/images/roblox-hack-download-pc_GM431946152.pdfIn PDF document text
    • http://akvamaster.com.ua/images/coin-master-firebird-card-free_GM406889139.pdfIn PDF document text
    • http://akvamaster.com.ua/images/how-to-get-free-roblox-premium_GM431946152.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_off000047a8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47A8 25284 bytes
SHA-256: 697e72b27613e65792d6464f3c7f805bfb5150a5fffcb7bc310496e3f3b1f7b6
font_01_sfnt_off00008090.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8090 2824 bytes
SHA-256: 381f6d859be141449dd645f7be1484d2a1cf49218dc471b402dae69eaa2b11d5
font_02_sfnt_off00008a32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A32 17868 bytes
SHA-256: 6fc94cfc5e353177abc481ae17561ea3edb8d825f50582b916d0cbb0f569bfa7

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