Malicious PDF — malware analysis report

Static analysis result for SHA-256 e63065e60b6568c6…

MALICIOUS

PDF

43.9 KB Created: 2021-06-04 00:38:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-22
MD5: deebbf3e58d6c0c3e70735cbeed38703 SHA-1: 1e83b38cc8d67d320d0647727d275e3963f1fc9f SHA-256: e63065e60b6568c687ce340a51acb0329f430b5b0b8791f7bfe3ba2199136cd9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free spins' for games like Coin Master. The presence of a download button lure and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content or further stages of an attack. Although no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a social engineering tactic to trick users into visiting malicious sites.

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/406889139/coin-master-hack-to-get-free-spins-game-hack In PDF document text
    • https://lib.btkljogja.or.id/repository/change-roblox-username-free_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-minecraft-maps_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-cheat-to-get-free-spins_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/minecraft-apk-free-download-016-0_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-free-link_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/roblox-hack-tool_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/how-to-hack-a-minecraft-account_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/spin-free-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/roblox-hack-ga_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-get-free-spins_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-spins-generated-from-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/roblox-free-roblox_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/roblox-free-followers_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/best-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-likes-on-tiktok_GM835599320.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coins-master-hack_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/minecraft-classic-free_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-shirt-templates-roblox_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-free-daily-spins_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
stream_004_off000051a3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x51A3 24632 bytes
SHA-256: 17c40686287ef9bb497e44d04c1891eed73fd98190c265cad09ec1542de7db20
font_01_sfnt_off000089ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89AD 18056 bytes
SHA-256: 6ebf753f6e2aa75b7f89159318a8360a057196b850713683f584e5709dbcaa9a

Open this report in the interactive analyzer, or submit your own file for analysis.