Malicious PDF — malware analysis report

Static analysis result for SHA-256 30a6ab483d19542b…

MALICIOUS

PDF

41.1 KB Created: 2021-04-23 16:34:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 03313799513abe5aa0be7eb6e44e98a4 SHA-1: e0327982e27219daf2c592d7a06fd43b7e60dd73 SHA-256: 30a6ab483d19542b11dbfb72b99dcc205d6ffbeb91815af33e4b6aaffcfb23a4
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacks, specifically for Roblox, directing users to a suspicious URL. This URL, 'https://netsecure.top/app/431946152/admin-hack-script-roblox-game-hack', is flagged as a redirector and is likely part of a phishing or malware distribution scheme. The presence of embedded URLs and the 'PDF_GAME_HACK_REDIRECT_LURE' heuristic strongly suggest a social engineering attack aimed at tricking users into visiting a malicious site.

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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://netsecure.top/app/431946152/admin-hack-script-roblox-game-hack PDF link annotation
    • https://www.dmgroupksa.com/uploaded_files/userfiles/files/critical-strike-roblox-free-gamepass.pdfIn PDF document text
    • https://www.dmgroupksa.com/uploaded_files/userfiles/files/survivor-hacks-roblox.pdfIn PDF document text
    • https://www.dmgroupksa.com/uploaded_files/userfiles/files/free-german-uniform-roblox.pdfIn PDF document text
    • https://www.dmgroupksa.com/uploaded_files/userfiles/files/hack-jailbreak-roblox-2021-menu.pdfIn PDF document text
    • https://www.dmgroupksa.com/uploaded_files/userfiles/files/where-in-roblox-can-i-find-free-gems.pdfIn PDF document text
    • https://www.dmgroupksa.com/uploaded_files/userfiles/files/free-group-roblox.pdfIn PDF document text
    • https://www.dmgroupksa.com/uploaded_files/userfiles/files/how-to-get-free-robux-from-jailbreak.pdfIn PDF document text
    • https://www.dmgroupksa.com/uploaded_files/userfiles/files/bit-slicer-roblox-all-hacks.pdfIn PDF document text
    • https://www.dmgroupksa.com/uploaded_files/userfiles/files/stella-roblox-hack.pdfIn PDF document text
    • https://www.dmgroupksa.com/uploaded_files/userfiles/files/hoow-to-get-robux-no-hacks.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_off0000417b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x417B 25884 bytes
SHA-256: 35bd39f88b98e8f6bf33f78a0750bcf19001a17aa8aa06ddb8c6c02e713debef
font_01_sfnt_off00007cba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CBA 19016 bytes
SHA-256: d35c64b955eec65a8cd77cdd7295fce8b9ac577b198d5004dd5c0665d5399226