Malicious PDF — malware analysis report

Static analysis result for SHA-256 7edaf431b1f3f074…

MALICIOUS

PDF

42.1 KB Created: 2021-04-22 21:31:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: ccd4fe91048ac9872fce1ad79f0edcec SHA-1: d053d854a48460b15a15818299bf2670c071286f SHA-256: 7edaf431b1f3f0744365488663c6eb6008a1292504a4ad1882ad05ba3affc3b6
110 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a lure for a 'free generator / game hack' which redirects to a suspicious URL. The document body, though heavily obfuscated, contains references to game hacking and a URL that appears to be a redirector. No scripts were extracted, but the presence of external links and the nature of the lure suggest a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.pro/app/431946152/hack-de-roblox-robux-gratis-2021-game-hack PDF link annotation
    • http://library.forda-mof.org/katalog/repository/free-ninja-suit-roblox.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/buy-roblox-cheats.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/roblox-papers-simulator-hacks.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/downloaf-free-roblox-robux-codes.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-hack-an-roblox-account-2021.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/roblox-free-online-game-demo.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-hack-admin-in-roblox.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-hack-roblox-acocunt.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/roblox-free-robux-android-1.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-robux-inspect-code.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_off00004154.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4154 26784 bytes
SHA-256: 9b56cf01e07c44d8d648d3c96a9f49c1031bd5e819cfee1e840b3d1576197767
font_01_sfnt_off00007ff7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FF7 19116 bytes
SHA-256: 8bd0d2f557bcb24a33d15e878c6c292775e90c9824089963c08fb63264041657