Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9e74e1ae227b5dd…

MALICIOUS

PDF

40.2 KB Created: 2021-04-27 07:43:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 978e670448507f5e2722ef02fa1394fd SHA-1: ac812bafb631c64c344423a056ba15ce515b358a SHA-256: c9e74e1ae227b5dd17aac2f43fbee28de1fc79aab79dd1e84fbc84eb5dd9834a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a redirector service, which is identified as malicious. The document body and heuristics indicate a lure for game hacks, specifically for Roblox, aiming to trick users into visiting these malicious links. The primary malicious URL identified is https://netcdn.xyz/app/431946152/new-cheat-roblox-game-hack, which likely leads to further malicious content or malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

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/new-cheat-roblox-game-hack In PDF document text
    • https://www.howard-avocats.com/assets/images/uploads/ckfinder/files/roblox-free-to-play-game.pdfIn PDF document text
    • https://www.howard-avocats.com/assets/images/uploads/ckfinder/files/free-candy-van-roblox-script.pdfIn PDF document text
    • https://www.howard-avocats.com/assets/images/uploads/ckfinder/files/how-to-get-more-robux-roblox-hack.pdfIn PDF document text
    • https://www.howard-avocats.com/assets/images/uploads/ckfinder/files/roblox-account-hack-2021-works-next-video-with-proof.pdfIn PDF document text
    • https://www.howard-avocats.com/assets/images/uploads/ckfinder/files/roblox-piano-cheat.pdfIn PDF document text
    • https://www.howard-avocats.com/assets/images/uploads/ckfinder/files/hack-version-of-the-game-apk-roblox-free-robux.pdfIn PDF document text
    • https://www.howard-avocats.com/assets/images/uploads/ckfinder/files/free-robux-de-2021.pdfIn PDF document text
    • https://www.howard-avocats.com/assets/images/uploads/ckfinder/files/roblox-robux-hack-android-apk.pdfIn PDF document text
    • https://www.howard-avocats.com/assets/images/uploads/ckfinder/files/robux-hacks-that-work-2021.pdfIn PDF document text
    • https://www.howard-avocats.com/assets/images/uploads/ckfinder/files/how-to-get-a-free-private-server-in-roblox.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_003_off000040eb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x40EB 25960 bytes
SHA-256: d922b2c4af245c061c2f1d9cdb98beaf54e6b4ab57add84e1da78223b1886df8
font_01_sfnt_off00007aa3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AA3 18448 bytes
SHA-256: f6128047b346d5a397d27b116b9db5194792309946cf104c43699d6790b8c699

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