Malicious PDF — malware analysis report

Static analysis result for SHA-256 a004816c88279d5f…

MALICIOUS

PDF

44.2 KB Created: 2021-05-19 19:00:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-25
MD5: fe60066cda858a3614b592c91f8aff4e SHA-1: 6c8a163cf5ac30b48b946de6b6299733e3808246 SHA-256: a004816c88279d5f39e9ab7d6de95e5398bca03779ac0682a50c6b8597fa09b5
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to free game hacks and generators, encouraging users to click a download button. It contains multiple links to known malicious redirector infrastructure, including the primary URL https://netcdn.xyz/app/835599320/can-tiktok-free-download-game-hack. The document's structure and embedded links strongly suggest it is designed to redirect users to potentially harmful websites, likely for further malware delivery or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/835599320/can-tiktok-free-download-game-hack In PDF document text
    • http://jdleducation.com/images/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
    • http://jdleducation.com/images/coin-master-hack-spin-link_GM406889139.pdfIn PDF document text
    • http://jdleducation.com/images/minecraft-games-to-play-for-free_GM479516143.pdfIn PDF document text
    • http://jdleducation.com/images/hack-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://jdleducation.com/images/pubg-uc-qiymetleri_GM1330123889.pdfIn PDF document text
    • http://jdleducation.com/images/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • http://jdleducation.com/images/free-cheat-codes-for-coin-master_GM406889139.pdfIn PDF document text
    • http://jdleducation.com/images/coin-master-tiradas-gratis-link_GM406889139.pdfIn PDF document text
    • http://jdleducation.com/images/roblox-comroblox_GM431946152.pdfIn PDF document text
    • http://jdleducation.com/images/coin-master-free-spins-daily-fb-champion_GM406889139.pdfIn PDF document text
    • http://jdleducation.com/images/free-spins-promo-code-for-coin-master_GM406889139.pdfIn PDF document text
    • http://jdleducation.com/images/coin-master-get-free-spins_GM406889139.pdfIn PDF document text
    • http://jdleducation.com/images/roblox-hack-ios_GM431946152.pdfIn PDF document text
    • http://jdleducation.com/images/minecraft-free-no-download_GM479516143.pdfIn PDF document text
    • http://jdleducation.com/images/coin-master-how-to-get-japan-sushi-card-free_GM406889139.pdfIn PDF document text
    • http://jdleducation.com/images/roblox-re_GM431946152.pdfIn PDF document text
    • http://jdleducation.com/images/how-to-make-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://jdleducation.com/images/coin-master-app-free-download_GM406889139.pdfIn PDF document text
    • http://jdleducation.com/images/coin-master-free-spins-link-quora_GM406889139.pdfIn PDF document text
    • http://jdleducation.com/images/tiktok-minecraft-hacks_GM479516143.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_off000047f6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47F6 29520 bytes
SHA-256: ae8e5fb37b51b516b89732f68f5d6a89ddf07ef2df38c7390671b32138e78b30
font_01_sfnt_off00008a6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A6F 18264 bytes
SHA-256: 753e028f4c611e3de5a31bcc633092bbe58d08f5f04cde7980ec50ec009a5294

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