Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e15021a6715406d…

MALICIOUS

PDF

49.7 KB Created: 2021-06-03 05:32:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 17f82254ddab9da7110be7fbc21bb667 SHA-1: f471268286dd95dc949602b32350f9c94121582b SHA-256: 6e15021a6715406d8dc8e8e2acda58544ff9a5fbbe78fc372c99275a99159811
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks and free currency, directing users to a malicious URL. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a phishing or redirection attempt to a site likely hosting further malicious content or exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/406889139/coin-master-daily-free-spins-blogspot-game-hack PDF link annotation
    • http://digilib.iailm.ac.id/repository/free-robux-com-no-verification_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/free-robux-gift-card-generator_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master--hack_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/https-rbx-place-rewards_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/robux-only_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/free-spins-coin-master-cheat_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-free-codes_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-daily-free-spins-link-today-blog_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/how-to-get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/free-spins-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/pig-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/roblox-avatar-editor-free_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-pokemon-go-accounts-level-30-2021_GM1094591345.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/how-to-gift-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-robux-real_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005253.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5253 29908 bytes
SHA-256: 14e11aca888df39dc9451e628fa4aa0f604f8ea85c030b55cf6e7783e0e0ff02
font_01_sfnt_off00009174.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9174 3560 bytes
SHA-256: 9d03f7c6c62ba3e7fdc0441e9d982a863b2b60b781165d6920512f68ecc4a440
font_02_sfnt_off00009dfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DFB 18812 bytes
SHA-256: 99efaab321cd8bd4771148dad361c5d136942e4fae15d22f58752892cb19a04e

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