Malicious PDF — malware analysis report

Static analysis result for SHA-256 a416b633991efc28…

MALICIOUS

PDF

34.4 KB Created: 2021-07-04 08:33:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: b306a4e33e4b3c21c68a1aa08445354a SHA-1: 8227312b1ea056502013f1b39a0a74feda6086bb SHA-256: a416b633991efc28e73cb720ec841194032ac45d94ff1160843a1bc6b508e584
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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/406889139/get-free-coins-for-coin-master-game-hack PDF link annotation
    • http://tasleemdubai.com/userfiles/files/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/how-to-make-a-group-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-jackpot-madness-hack_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/minecraft-net-free_GM479516143.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/link-coin-master_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/krnl-download_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/get-me-free-robux_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/roblox-be-a-parkour-ninja-hack_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-free-coins-app_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/how-to-make-a-minecraft-bedrock-server-for-free_GM479516143.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/roblox-cheat-engine-bypass-2021_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/roblox-t-shirt-free_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/collect-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/real-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003270.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3270 22484 bytes
SHA-256: 57b359b904e9513ac32d70b10d07bf87802d6f8200b395f947a569fad82eb03d
font_01_sfnt_off0000648c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x648C 17996 bytes
SHA-256: 793c2fef5a083e44e02865ee398021caab62ffe133b92055440f57cdc5712e5a

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