Malicious PDF — malware analysis report

Static analysis result for SHA-256 08add37ced220d4d…

MALICIOUS

PDF

33.7 KB Created: 2021-06-29 10:45:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-02
MD5: f9956035b0cbac5a2f75f60f58af25e0 SHA-1: 8c98edb14e1e8e271b85c82368b00ef597a15784 SHA-256: 08add37ced220d4dac3433fa3ea2e7c5fe37ed18b9fd6e8b058a2f776ffc2e7e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to known malicious infrastructure, specifically promoting game hacks and generators. The document body and embedded URLs strongly suggest a lure for users seeking cheats for popular games like Roblox and Coin Master. The primary attack pattern involves directing users to potentially harmful websites through deceptive links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/roblox-azure-mines-cheats-game-hack In PDF document text
    • http://bepquannhu.vn/upload/editor/files/coin-master-hack-apk-2021-download_GM406889139.pdfIn PDF document text
    • http://bepquannhu.vn/upload/editor/files/coin-master-cheat-free_GM406889139.pdfIn PDF document text
    • http://bepquannhu.vn/upload/editor/files/free-games-like-minecraft_GM479516143.pdfIn PDF document text
    • http://bepquannhu.vn/upload/editor/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://bepquannhu.vn/upload/editor/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://bepquannhu.vn/upload/editor/files/coin-master-hack-apk-iphone_GM406889139.pdfIn PDF document text
    • http://bepquannhu.vn/upload/editor/files/how-to-get-free-minecoins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://bepquannhu.vn/upload/editor/files/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • http://bepquannhu.vn/upload/editor/files/pain-exist-hack-roblox_GM431946152.pdfIn PDF document text
    • http://bepquannhu.vn/upload/editor/files/blogspot-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://bepquannhu.vn/upload/editor/files/hack-de-roblox-apk_GM431946152.pdfIn PDF document text
    • http://bepquannhu.vn/upload/editor/files/free-expert-sripters-roblox_GM431946152.pdfIn PDF document text
    • http://bepquannhu.vn/upload/editor/files/emeritus-hack-roblox_GM431946152.pdfIn PDF document text
    • http://bepquannhu.vn/upload/editor/files/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://bepquannhu.vn/upload/editor/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://bepquannhu.vn/upload/editor/files/roblox-cheats-for-robux-2021_GM431946152.pdfIn PDF document text
    • http://bepquannhu.vn/upload/editor/files/roblox-free-exploit-executor_GM431946152.pdfIn PDF document text
    • http://bepquannhu.vn/upload/editor/files/generator-for-free-password-roblox_GM431946152.pdfIn PDF document text
    • http://bepquannhu.vn/upload/editor/files/comment-avoir-des-robux-gratuit-sans-hack_GM431946152.pdfIn PDF document text
    • http://bepquannhu.vn/upload/editor/files/fre-robux-websites_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_off00002dde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DDE 21716 bytes
SHA-256: 440f9e283842f3a50511de9e6d77b7eb635e589c502919522a5ec0dc0372ee0b
font_01_sfnt_off00005db2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DB2 19292 bytes
SHA-256: 583ac6e81278c1b79b77bef9bc1cdf3f5a9e068ac2bde00bbfb16e00de65de81

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