Malicious PDF — malware analysis report

Static analysis result for SHA-256 e78c242360da449d…

MALICIOUS

PDF

34.3 KB Created: 2021-06-27 22:24:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 6b5412ca24e45084c9f1e24fd42bc4b9 SHA-1: aac67630806aefbf6bd70d6a7056347f992df620 SHA-256: e78c242360da449d945f7f5f951b5576891654982d0984d4beb9fcc996205ff8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains multiple links to known malicious redirectors, specifically advertising game hacks and generators. The primary lure directs users to 'http://netcdn.co/app/431946152/hacks-roblox-xonnek-game-hack', which is flagged as malicious infrastructure. The document body and embedded URLs reinforce this theme, aiming 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.co/app/431946152/hacks-roblox-xonnek-game-hack In PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/free-robux-com-no-verification_GM431946152.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/cool-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/totally-free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/roblox-hacks-2021-aimbot_GM431946152.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/free-coin-master-spins-for-today_GM406889139.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/minecraft-roblox-games-free_GM431946152.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/how-to-get-free-robux-on-android_GM431946152.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/how-to-change-your-name-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/coin-master-hacking-news_GM406889139.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/minecraft-mod-menu-apk_GM479516143.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/claim-free-robux-button_GM431946152.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/free-diamond-generator-roblox-royale-high_GM431946152.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/free-coin-master-coins-2021_GM406889139.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/is-windows-10-minecraft-free_GM479516143.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/rblx-city-free-robux_GM431946152.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/free-robux-no-email_GM431946152.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/free-coin-master-links_GM406889139.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/free-daily-spins-coin-master-2021_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_off0000301f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x301F 22348 bytes
SHA-256: 74aa92bd66c35562c2a4281183a2915cb623a693ad84d3547e1303f42e1bce23
font_01_sfnt_off00006204.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6204 18656 bytes
SHA-256: 8b0e21fa1a0df645e33dc29dfc1a27ad5135da74f84893cbdb983ff5589aa05d

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