Malicious PDF — malware analysis report

Static analysis result for SHA-256 53da7f89314bf5ae…

MALICIOUS

PDF

48.0 KB Created: 2021-06-03 12:41:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 01eb44b6bd9799e344807dfe40e4a14a SHA-1: 929de6fe9e8fc372b07b4a6ad47f09597f8192e7 SHA-256: 53da7f89314bf5ae466a6843e5b57f42d0a1a3edd026cc610ef57771b0e1d65f
200 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple links that redirect to malicious infrastructure, masquerading as game hacks or free downloads to lure users. The document also exhibits characteristics of a remote support tool lure, suggesting an attempt to gain unauthorized access. The primary malicious URL identified is https://netcdn.online/app/479516143/play-full-version-of-minecraft-for-free-no-download-game-hack, which is associated with known malicious redirectors.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

Heuristics 5

  • 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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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 https://netcdn.online/app/479516143/play-full-version-of-minecraft-for-free-no-download-game-hack In PDF document text
    • http://digilib-pps.unja.ac.id/repository/free-gfx-roblox_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/minecraft-java-edition-download-free_GM479516143.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/free-roblox-generator_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/coin-master-homepage_GM406889139.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/minecraft-bedrock-free-server-hosting_GM479516143.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/roblox-promo-codes-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/game-hunters-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/tiktok-free-without-downloading_GM835599320.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/coin-master-home_GM406889139.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/200-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/free-robux-apk_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/minecraft-free-download_GM479516143.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/how-do-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/coin-master-free-spin-and-coin-link-app_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005285.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5285 25764 bytes
SHA-256: af7130c03dc9841540c04ea71dcbc95fa29e64432736b325a8f699c1ead62772
font_01_sfnt_off00008cb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CB8 3016 bytes
SHA-256: 804f9cb72ab6404c94c5d9b56d68e980d98cac46574bb89321a2e83ffe5ef0c4
font_02_sfnt_off0000972e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x972E 18900 bytes
SHA-256: 72a4985a0f1854ed26b55ec1f9c271b843743081401250fa5f99a0b23226d3ed

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