Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c06f07d4ea68a12…

MALICIOUS

PDF

34.6 KB Created: 2021-07-03 14:31:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 3e889b293ad31856c11b6d9466b28e78 SHA-1: a88f5e29735182ca52a041480903f2f514208188 SHA-256: 8c06f07d4ea68a128c555fcc4efee7ef554709ba66d1b4179e598293b106b329
82 Risk Score

Malware Insights

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

The PDF document contains multiple embedded URLs that redirect to sites offering game hacks and generators, such as 'free-minecraft-skins-java-game-hack'. This indicates a lure-based attack, likely intended to trick users into downloading further malware or engaging in fraudulent activities. The ML classifier also strongly flagged this PDF as malicious.

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-minecraft-skins-java-game-hack PDF link annotation
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/roblox-but_GM431946152.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/free-roblox-acc_GM431946152.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/app-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/blox-supply-free-robux_GM431946152.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/coin-master-game-free_GM406889139.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/minecraft-server-hacks_GM479516143.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/tiktok-free-ad-credit_GM835599320.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/how-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/hack-coin-master-free_GM406889139.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/coin-master-hack-2021-app-download_GM406889139.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/free-exploits-for-roblox_GM431946152.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/cheat-roblox-bad-business_GM431946152.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/how-to-get-free-spins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/jailbreak-roblox-free-money_GM431946152.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/roblox-hacked-version-download_GM431946152.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/roblox-hacker-mask_GM431946152.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/hack-coin-master-without-root_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
font_00_sfnt_off00003302.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3302 22340 bytes
SHA-256: 7b2941c006c10ee0c005af2b346c35173c599b1dec664a2bb9aa841641a1e672
font_01_sfnt_off00006493.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6493 18304 bytes
SHA-256: 401eb49ff2a7bbc2c0a7320b67dbf183b2d718a040190e5e2c5f0615a3ea9473

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