Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc0d29ffe7ce7093…

MALICIOUS

PDF

35.0 KB Created: 2021-06-26 17:26:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-23
MD5: 987ad139e4a2b10214e19ccf2d328ac7 SHA-1: 347e5748b78f035922e96b2902c9989af8ab7a72 SHA-256: fc0d29ffe7ce7093ba56e52eca83c4422cd2192679ae595d656597f6c79913b3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to malicious infrastructure, masquerading as generators for in-game currency or hacks. The heuristic firings confirm the presence of malicious redirector links and a lure for game hacks. The document body text, though partially corrupted, also contains references to these lures and URLs, indicating a phishing or scam attempt.

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-ios-robux-hack-2021-game-hack In PDF document text
    • http://fishboat.hr/files/www-robux-tv-free-robux_GM431946152.pdfIn PDF document text
    • https://www.fishboat.hr/files/toolbox-premium-apk_GM479516143.pdfIn PDF document text
    • https://www.fishboat.hr/files/coin-master-hack-android-2021_GM406889139.pdfIn PDF document text
    • https://www.fishboat.hr/files/free-spins-coin-master-android_GM406889139.pdfIn PDF document text
    • http://fishboat.hr/files/roblox-free-rubox_GM431946152.pdfIn PDF document text
    • http://fishboat.hr/files/free-shoulder-accessories-roblox_GM431946152.pdfIn PDF document text
    • http://fishboat.hr/files/coin-master-unlimited-spin-link_GM406889139.pdfIn PDF document text
    • https://www.fishboat.hr/files/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://fishboat.hr/files/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • http://fishboat.hr/files/reddit-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://fishboat.hr/files/coin-master-free-400-spin-link_GM406889139.pdfIn PDF document text
    • http://fishboat.hr/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://fishboat.hr/files/wwwcoin-master-hack-apk_GM406889139.pdfIn PDF document text
    • https://www.fishboat.hr/files/free-money-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.fishboat.hr/files/lila-plays-free-robux_GM431946152.pdfIn PDF document text
    • http://fishboat.hr/files/robuxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • https://www.fishboat.hr/files/gaming-dunia-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://fishboat.hr/files/como-hackear-coin-master-espaol_GM406889139.pdfIn PDF document text
    • https://www.fishboat.hr/files/coin-master-free-spin-group_GM406889139.pdfIn PDF document text
    • http://fishboat.hr/files/coin-master-free-spin-sites_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_002_off00003085.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3085 22616 bytes
SHA-256: 3f2a110ebe8e803e7af4b55fdb225acfeb187a2976c722a23f2520e23dc4a69f
font_01_sfnt_off0000631a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x631A 19200 bytes
SHA-256: d79c4c657bc681396d1fd3798307b7bb0fc0a9ed2b8fed4b3b3999749b7f9da2

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