Malicious PDF — malware analysis report

Static analysis result for SHA-256 8698bfc5de037617…

MALICIOUS

PDF

34.3 KB Created: 2021-06-30 21:30:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 0d4e45c7900fe1157a3afcce7bc04225 SHA-1: 3dc494c2a24cc3eb851419865666b1e1905225cc SHA-256: 8698bfc5de03761752e84cd34345b041bb417b91e6e52889698df15b81d8afe6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and generators, directing users to a known malicious redirector. The embedded URLs and the document body content strongly suggest a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and heuristic firings indicate a malicious redirector is used to deliver a payload.

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-online-hack-generator-game-hack In PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/roblox-free-bc-codes-2021_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/roblox-hack-com_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/roblox-hack-robux-and-tix-no-download_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/roblox-hack-tool-with-free-robux_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/800-free-robux-gamekit_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/coin-master-hack-cheat-engine_GM406889139.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/secret-free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/how-to-get-free-robux-easy-no-download_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/how-to-get-free-coins-on-tiktok_GM835599320.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/robux-free-co_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/how-to-get-free-robux-without-verifying-2021_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/roblox-c9m_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/coin-master-claim-free-spins_GM406889139.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/free-modded-minecraft-server_GM479516143.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/free-robux-no-generator_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/how-to-hack-roblox-for-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/hack-to-beome-supertall-in-roblox_GM431946152.pdfIn PDF document text
    • http://www.furuihp.com/Public/upload/editorfiles/free-robux-without-asking-if-youre-a-robot_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_off0000309a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x309A 22064 bytes
SHA-256: 129d6bd3c8248ad32e20badd858554cf17beee02354c469dac39516160d6c37b
font_01_sfnt_off0000617c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x617C 18880 bytes
SHA-256: cf764596a35dbcf6d16558c4edc137dc1a26896957359bb90b13508288dfe416

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