Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf2e88b60579a5a0…

MALICIOUS

PDF

32.9 KB Created: 2021-06-28 05:36:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 27aa7f90ff46f870b362f10acaab0ccb SHA-1: 9fd78f669f5c2bc3ffde86a8b4fe6a97e1430cad SHA-256: cf2e88b60579a5a0d204e1d351346b228b4a4cb77a499406f3d721d70a81bdbf
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users into clicking on what appears to be a free generator or hack for popular games. The primary link, http://netcdn.co/app/431946152/free-roblox-itoms-game-hack, is flagged as a malicious redirector. The document's content and structure strongly suggest a phishing or scam attempt, likely leading to further malware download or credential harvesting.

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/free-roblox-itoms-game-hack In PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/real-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/free-headless-head-roblox_GM431946152.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/adopt-me-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/coin-master-hacks-no-surveys_GM406889139.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/coin-master-cheats-and-hacks_GM406889139.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/coin-master-free-spins-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/make-free-robux_GM431946152.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/claimrbx-free-robux_GM431946152.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/free-online-minecraft-server_GM479516143.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/coin-master-online-hack-tool_GM406889139.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/descargar-hack-roblox-jailbreak-2021_GM431946152.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/how-to-get-minecraft-realms-for-free_GM479516143.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/rbx-earn_GM431946152.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/mcpe-master-hack-unlimited-coins-apk_GM406889139.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/bloxpink-free-robux_GM431946152.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/free-robux-pastebin_GM431946152.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/coin-master-hacks-for-free-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
font_00_sfnt_off00002d14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D14 21260 bytes
SHA-256: 4baa270ae86a2df0e305dc7870396f9695ee0c5d56cb6905b4321c5d8c8a6850
font_01_sfnt_off00005b72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B72 19016 bytes
SHA-256: 57803b667e29b01929bf9c736b5da10488dd50b3a46e16fb440eebc0e1aceee1

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