Malicious PDF — malware analysis report

Static analysis result for SHA-256 1be6b51450a43b71…

MALICIOUS

PDF

34.3 KB Created: 2021-07-20 03:23:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 36d07a1645c21e8c9afe75595aaa00f1 SHA-1: 95aa3d48f45e717b3f5e79954ac12497d4db7bc9 SHA-256: 1be6b51450a43b71560c56a6de5215e3901399a5754f0001bb71bbb61a8ee272
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'generators'. The primary lure is a link to 'how-to-play-minecraft-for-free-on-pc-game-hack', which is hosted on a known malicious redirector. The document body also contains a call-to-action button, reinforcing the deceptive nature of the content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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 http://netcdn.tw/app/479516143/how-to-play-minecraft-for-free-on-pc-game-hack In PDF document text
    • https://e-learning.mtsdditakkalasi.com/__statics/gudangsoal/files/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdfIn PDF document text
    • https://e-learning.mtsdditakkalasi.com/__statics/gudangsoal/files/tiktok-free-fans_GM835599320.pdfIn PDF document text
    • https://e-learning.mtsdditakkalasi.com/__statics/gudangsoal/files/roblox-script-hack_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsdditakkalasi.com/__statics/gudangsoal/files/roblox-hack-me_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsdditakkalasi.com/__statics/gudangsoal/files/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsdditakkalasi.com/__statics/gudangsoal/files/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsdditakkalasi.com/__statics/gudangsoal/files/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsdditakkalasi.com/__statics/gudangsoal/files/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsdditakkalasi.com/__statics/gudangsoal/files/coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsdditakkalasi.com/__statics/gudangsoal/files/robux-hack-generator_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_off00003330.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3330 22292 bytes
SHA-256: 208a9f8db99e6e87e22aaaf90bedf57e58d52d31587c858d62ca9b0c95808144
font_01_sfnt_off0000644e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x644E 18284 bytes
SHA-256: 805db6617afe2d237489c8bb7c2b5cc2832d34670fdae12a8b82fd0acde92e0c

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