Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ea0fddf5a3421bc…

MALICIOUS

PDF

42.4 KB Created: 2021-05-16 18:15:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-23
MD5: ff7b596420a0866e0271bf60136f3c8b SHA-1: cff3e36d014a5f1f4acc7d5662259682e4af87e9 SHA-256: 3ea0fddf5a3421bcb97a201a9b6c6432a92a4d09c60a7f658176ecdc290668d9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link that redirects to known malicious infrastructure, disguised as a game hack generator. The document body and heuristics indicate a lure for free game items, which is a common social engineering tactic. The embedded URL is the primary indicator of malicious intent, likely leading to a further stage of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/free-spin-app-for-coin-master-game-hack In PDF document text
    • http://leagueforwomenrights.gr/images/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/try-minecraft-free_GM479516143.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/coin-master-spin-link-free_GM406889139.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/easy-robux-generator_GM431946152.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/minecraft-free-download-mac-full-version-2021_GM479516143.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/coin-master-hack-pc-cheat-engine_GM406889139.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/wurst-18_GM479516143.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/coin-master_GM406889139.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/coin-master-hack-app-for-ios_GM406889139.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/free-roblox-codes_GM431946152.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/coin-master-hack-club_GM406889139.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/coin-master-hack-tool-v1-9-download-free-pc_GM406889139.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/robux-premium_GM431946152.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/free-coins-coin-master-blog_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.

FilenameKindSourceSize
stream_003_off00004ca4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CA4 24432 bytes
SHA-256: 252f40282a8c7a3628e6a637cfb17e67be7817521a4c6bc3c43be357b31c0c0d
font_01_sfnt_off000084b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84B6 17884 bytes
SHA-256: 64e302a077f8ec1bb79f530eb8d45af8bfabe23c67be24f596f79d031454c781

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