Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8e8a48827ca0d47…

MALICIOUS

PDF

33.8 KB Created: 2021-07-06 12:07:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 0e2c7e4bebd27819abb8d2446cfa9fcd SHA-1: 5000a2da4c851684fb51408b167afc3041d39a03 SHA-256: e8e8a48827ca0d47bf2628a085ffcbc1c1e93566710b0ac370778abb28ce99b0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures for game hacks and generators, with embedded links pointing to known malicious redirector infrastructure. The primary URL, http://netcdn.tw/app/406889139/guide--coin-master-free-tips-game-hack, is identified as a malicious redirector. The document body and heuristics indicate a social engineering tactic to trick users into visiting potentially harmful sites.

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.tw/app/406889139/guide--coin-master-free-tips-game-hack In PDF document text
    • http://mbbs.hr/files/coin-master-mod_GM406889139.pdfIn PDF document text
    • https://mbbs.hr/files/how-to-play-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • https://mbbs.hr/files/get-free-robux-com_GM431946152.pdfIn PDF document text
    • https://mbbs.hr/files/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • https://mbbs.hr/files/coinmaster-gps-user-review-coinmaster-coin-master-hack-pagedemo-index_GM406889139.pdfIn PDF document text
    • http://mbbs.hr/files/minecraft-pe-015-0-apk-free-download_GM479516143.pdfIn PDF document text
    • https://mbbs.hr/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://mbbs.hr/files/minecraft-112-hacked-client_GM479516143.pdfIn PDF document text
    • http://mbbs.hr/files/como-tener-los-hacks-de-xonnkek-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://mbbs.hr/files/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://mbbs.hr/files/free-promo-codes-for-robuxs_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/how-to-get-to-village-3-in-coin-master_GM406889139.pdfIn PDF document text
    • http://mbbs.hr/files/can-you-really-hack-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://mbbs.hr/files/how-to-get-free-robux-for-free_GM431946152.pdfIn PDF document text
    • https://mbbs.hr/files/robux-free-2021_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • http://mbbs.hr/files/free-robux-no-game-download_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/free-robux-no-email_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/free-spins-on-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
    • https://mbbs.hr/files/how-to-get-free-robux-youtube_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_off00002e50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E50 22628 bytes
SHA-256: 1ee38d856de5da6cf372c75a884f79139fc6d20b59ceef3ba307802b8b6b9224
font_01_sfnt_off000060a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60A8 18488 bytes
SHA-256: 72a1917ae8e8a7f30c7b1d5c4ccc6edf0a552f82cfb4ec0142f59bc197696ebb

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