Malicious PDF — malware analysis report

Static analysis result for SHA-256 79e2e61aa70dabab…

MALICIOUS

PDF

41.6 KB Created: 2021-05-12 01:15:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: ca5645c4369d6177fcb82a4700908d8e SHA-1: 9275e11e7ed7f6deec1f0c924a5172cd229b6358 SHA-256: 79e2e61aa70dabab300c2d8785fdd482ce8ad830bdad7c5d81ce2a10b70e10be
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks, specifically mentioning Roblox and Coin Master, directing users to external URLs. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates a malicious intent to redirect users to potentially harmful content. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/431946152/roblox-money-hack-game-hack PDF link annotation
    • http://perpus.polbitrada.ac.id/repository/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/coin-master-spin-hack-2021_GM406889139.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/master-coin-free_GM406889139.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/coin-master-daily-free-spins-link-facebook_GM406889139.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/wurst-115_GM479516143.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/online-coin-master-hack-here_GM406889139.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/roblox-generator_GM431946152.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/collect-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/avatar-de-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/how-to-hack-mcpe-master-coins_GM406889139.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/robux-online_GM431946152.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/40-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/minecraft-server-hacks_GM479516143.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/coin-master-heaven-free-spins-link_GM406889139.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/best-free-minecraft-skins_GM479516143.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_off0000467c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x467C 24564 bytes
SHA-256: ed1ef07b8db8c45809566b58deeefcc0b49d8a307730c3ea7e82adebea7f682a
font_01_sfnt_off00007f3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F3A 18560 bytes
SHA-256: 2877ec179c3d1975899223932944ba0d35aae080e47210864d1f1454656c8d43

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