Malicious PDF — malware analysis report

Static analysis result for SHA-256 adbafd7985b24efd…

MALICIOUS

PDF

43.0 KB Created: 2021-05-11 19:35:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: d57f01244d06280dade08a33affe4698 SHA-1: 65eed8aae3f884273ff4f02d889b92a0b874fe29 SHA-256: adbafd7985b24efd8eda6cca2a2496f309146eec49af549b3741dba2f19bd201
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to websites offering 'free generators' or 'game hacks', specifically targeting popular games like Roblox and Coin Master. The primary malicious URL, https://netcdn.xyz/app/431946152/robux-gainer-game-hack, is flagged as a known malicious redirector. The document body, though partially obfuscated, contains similar URLs and references to game hacks, reinforcing the lure. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/431946152/robux-gainer-game-hack In PDF document text
    • http://mohacad.hu/images/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://mohacad.hu/images/coin-master-free-gift-cards_GM406889139.pdfIn PDF document text
    • http://mohacad.hu/images/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://mohacad.hu/images/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • http://mohacad.hu/images/roblox-hack-codes_GM431946152.pdfIn PDF document text
    • http://mohacad.hu/images/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://mohacad.hu/images/coin-master-app_GM406889139.pdfIn PDF document text
    • http://mohacad.hu/images/free-spins-link-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://mohacad.hu/images/robux-free-c_GM431946152.pdfIn PDF document text
    • http://mohacad.hu/images/daily-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://mohacad.hu/images/100-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://mohacad.hu/images/free-spins-coin-master-without-survey_GM406889139.pdfIn PDF document text
    • http://mohacad.hu/images/how-to-get-minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • http://mohacad.hu/images/how-to-get-minecraft-dungeons-for-free_GM479516143.pdfIn PDF document text
    • http://mohacad.hu/images/archery-master-3d-coins-hack_GM406889139.pdfIn PDF document text
    • http://mohacad.hu/images/coin-master-hack-online-cheat_GM406889139.pdfIn PDF document text
    • http://mohacad.hu/images/robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://mohacad.hu/images/free-printable-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • http://mohacad.hu/images/tower-of-hell-roblox-hack_GM431946152.pdfIn PDF document text
    • http://mohacad.hu/images/roblox-verification_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_off000048d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48D3 26804 bytes
SHA-256: 7eb2ae30b0f5b0282d710bb981153856b01411faf641c2a5458aa0f3daa73b10
font_01_sfnt_off000085e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85E5 18200 bytes
SHA-256: b49f4983386c5e2433966410528fc3ba3932a5551bf841ef6afc48143acf477f

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