Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d0e7f332a087651…

MALICIOUS

PDF

44.4 KB Created: 2021-06-03 06:23:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 9823f220cac6c048cb9bfdb77c8ac117 SHA-1: 86d50ad2366add714f460156dd70d5635073e55f SHA-256: 4d0e7f332a08765141de6bfef5da72f7cf9248d51ae302f539bcdfa9fa697412
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file contains heuristics indicating it is a lure for game hacks and uses malicious redirector links. The document body, though partially garbled, contains a URL that aligns with the heuristic findings. The presence of embedded URLs and the ML classifier's high confidence score suggest a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/479516143/download-minecraft-bedrock-game-hack In PDF document text
    • https://digilib.stieama.ac.id/repository/free-spins_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/hack-para-coin-master-sin-verification_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-shield_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-spin-coin-master-ios_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-32-mod-hack-apk-download_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/daily-free-spin-coin-master-link_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-free-download-2021_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-com-real_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-server-hack_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/robux-prices_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/cute-free-roblox-clothes_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-spins-link-2021-hack_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-com-free-play_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-accessories-roblox_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
stream_004_off000050ba.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50BA 25000 bytes
SHA-256: 851260b574a87baa4fd75e675d81492c9f201e544b56bf8f97f19ea497faba2e
font_01_sfnt_off000089a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89A6 18676 bytes
SHA-256: 7f86fed3984d6e1feedcbbb61174a74a8b6ed0af1ebcb464883137ac5d5df4fe

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