Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a6ee222b97bb22e…

MALICIOUS

PDF

45.1 KB Created: 2021-06-03 22:00:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 9290135ce96d9becef671b0b2cd31c85 SHA-1: 2dc04b848d032363ddb5fa8d123586b3c26078c7 SHA-256: 1a6ee222b97bb22e3ad48de734d9563d0510e014294aef7904436e91e7df346d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF contains multiple links to known malicious redirectors, specifically advertising game hacks and generators. The primary link, https://netcdn.online/app/431946152/roblox-speed-hack-for-all-games-script-pastebin-game-hack, is identified as a lure for a game hack. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content or download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/431946152/roblox-speed-hack-for-all-games-script-pastebin-game-hack In PDF document text
    • http://www.js100.com/uploads/ckeditor/files/minecraft-free-download-ipad_GM479516143.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/robuxfree-con_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/roblox-hacked-com-2021_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/pubg-uc-hack-app_GM1330123889.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/coin-master-hack-online-generator_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/coin-master-claim-free-spins_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/how-to-get-free-clothes-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/tiktok-free-views-trial_GM835599320.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/free-online-minecraft-server_GM479516143.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/minecraft-windows-10-free-trial_GM479516143.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/minecraft-items_GM479516143.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/real-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/free-tiktok-followers-and-likes_GM835599320.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/free-roblox-accounts-2021-with-robux_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
stream_004_off0000529a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x529A 24496 bytes
SHA-256: 3568a7d06994573e1265810b6a16faa7e3bcc788ef202552f540cea56f0901cd
font_01_sfnt_off00008ab4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AB4 19332 bytes
SHA-256: bb53defbbed104ee2642354276f5bafe4c0528d73b9b91dc1b87f23b18c48983

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