Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b1ad3fb45d7ebd8…

MALICIOUS

PDF

33.9 KB Created: 2021-07-05 14:05:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 849a78ff5fc71ad0e11dfe8ed24c7ba3 SHA-1: e5e49140f36e8314667f6282ad3a96efd7ca60f2 SHA-256: 3b1ad3fb45d7ebd8ffedfcb9d9c2caeba9a873c2895fda56aaf76f6458c13403
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple links to external websites, including one specifically identified as a lure for a 'free generator / game hack'. The document body also contains text and URLs related to game cheats and hacks, suggesting a social engineering attempt to trick users into downloading potentially malicious software. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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 http://netcdn.tw/app/479516143/get-minecraft-windows-10-free-game-hack PDF link annotation
    • http://daskrimti-jabar.web.id/library/repository/roblox-cheat_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/how-to-ban-or-kick-in-servers-roblox-hack-scrip_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/roblox-hack-app-ios_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-item-november-2021-roblox_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/roblox-group-free-robux_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/coin-master-free-shield_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/roblox-pain-exist-hack_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/red-boy-hack-roblox-descargar_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/coin-master-daily-free-spins-link-haktuts_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/robux-free-gift-card_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/how-to-download-roblox-hacks-on-mac_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/coin-master-guide-to-free-spins-and-rewards_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/master-coin-hack-mod_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.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_off00003072.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3072 21768 bytes
SHA-256: 28a53a4dfab55ee1eb0596934a2ec5eda3101ec33f1eabe9817312bb80984c30
font_01_sfnt_off00006012.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6012 18812 bytes
SHA-256: 611e0fe8ef0e09460557208b470d6bb305c401f6b817a80b09e66ff1eb668ddb

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