Malicious PDF — malware analysis report

Static analysis result for SHA-256 8bf6bbab3cdc22c4…

MALICIOUS

PDF

34.8 KB Created: 2021-07-05 22:36:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 3357a4f602597817aacabaa138a8d4bb SHA-1: ab3586001afa372a198e5c03f9f819feaa62dbf7 SHA-256: 8bf6bbab3cdc22c4c6ec7e8e45591f6c349aa82c8c5197d6b0fff19b8036944b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites that promise free game hacks and generators, such as for Minecraft and Coin Master. These links are designed to lure users into downloading potentially malicious files or visiting compromised sites. The ML classifier strongly indicated maliciousness, and the presence of numerous suspicious URLs supports this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/479516143/free-op-minecraft-servers-game-hack PDF link annotation
    • http://stiepariperpus.web.id/sarjana/repository/hack-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/how-to-change-roblox-username-for-free-2021_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/minecraft_GM479516143.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/which-pubg-uc-is-best_GM1330123889.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/how-to-get-free-robux-no-gift-card-no-nothing_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/coin-master-hack-apk-ios_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/minecraft-pe-server-hosting-free_GM479516143.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/roblox-free-hair-boy_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/free-minecraft-realm-codes_GM479516143.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/free-coins-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/pubg-uc-kuwait_GM1330123889.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/pet-paradise-roblox-hack_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/coin-master-download_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/roblox-builders-club-free_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/hacks-roblox-scripts_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/how-to-hack-roblox-account-top-9ways_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/minecraft-free-android_GM479516143.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/hack-files-for-roblox_GM431946152.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
font_00_sfnt_off00003399.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3399 22760 bytes
SHA-256: 1ceb46164376ef29572d7a6401c66b76e6dc8163827c2c8616a559af1dfdc54e
font_01_sfnt_off000065f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65F1 18148 bytes
SHA-256: 09b378257ae92cafd0d3c1f5f7a36903dc8b82a48bbd3e05dc40a1258008c31b

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