Malicious PDF — malware analysis report

Static analysis result for SHA-256 952ad5cdafd5a9c6…

MALICIOUS

PDF

34.7 KB Created: 2021-06-21 08:10:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 0a73a419164f353af717594e1514dcbd SHA-1: abdab860caad6c8a8254cfacc4bc02a1566a6a25 SHA-256: 952ad5cdafd5a9c6fcc1b14c8b6931dd77154556d7c2dd38145fbd3f9217175e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a lure related to game hacks and generators, directing users to a known malicious redirector. The document body and heuristics indicate a clear intent to trick users into visiting malicious links, likely for further payload delivery or phishing. No scripts were extracted, but the embedded URLs and redirector findings are strong indicators of malicious intent.

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.co/app/479516143/how-to-download-minecraft-for-free-on-iphone-game-hack In PDF document text
    • https://wald-match.com.tw/upload/files/hole-in-the-wall-roblox-hack_GM431946152.pdfIn PDF document text
    • https://wald-match.com.tw/upload/files/how-to-get-a-hacked-roblox-account-back_GM431946152.pdfIn PDF document text
    • https://wald-match.com.tw/upload/files/coin-master-free-link-facebook_GM406889139.pdfIn PDF document text
    • https://wald-match.com.tw/upload/files/roblox-free-printables_GM431946152.pdfIn PDF document text
    • https://wald-match.com.tw/upload/files/free-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • https://wald-match.com.tw/upload/files/coin-master-hacking-news_GM406889139.pdfIn PDF document text
    • https://wald-match.com.tw/upload/files/roblox-piano-hack_GM431946152.pdfIn PDF document text
    • https://wald-match.com.tw/upload/files/free-robux-group_GM431946152.pdfIn PDF document text
    • https://wald-match.com.tw/upload/files/minecraft-apk-114_GM479516143.pdfIn PDF document text
    • https://wald-match.com.tw/upload/files/how-to-setup-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://wald-match.com.tw/upload/files/united-gaming-net-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://wald-match.com.tw/upload/files/sites-for-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://wald-match.com.tw/upload/files/coin-master-rewards_GM406889139.pdfIn PDF document text
    • https://wald-match.com.tw/upload/files/haktuts-coin-master_GM406889139.pdfIn PDF document text
    • https://wald-match.com.tw/upload/files/roblox-hack-client_GM431946152.pdfIn PDF document text
    • https://wald-match.com.tw/upload/files/minecraft-free-ios-no-verification_GM479516143.pdfIn PDF document text
    • https://wald-match.com.tw/upload/files/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
    • https://wald-match.com.tw/upload/files/free-spin-coin_GM406889139.pdfIn PDF document text
    • https://wald-match.com.tw/upload/files/play-minecraft-online-free_GM479516143.pdfIn PDF document text
    • https://wald-match.com.tw/upload/files/how-to-get-free-robux-on-ipad_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003337.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3337 21904 bytes
SHA-256: e999734328574310908469dd961781a269b219fa799d7d226ba25b1a4e068ba0
font_01_sfnt_off00006325.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6325 18920 bytes
SHA-256: 0804603b1cc23610cdbf59007cb88478a5f96776826fe68fd4f72156fde116ee

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