Malicious PDF — malware analysis report

Static analysis result for SHA-256 81ae6e9e1c95b2c1…

MALICIOUS

PDF

41.7 KB Created: 2021-05-13 09:21:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 2e6e15c806dbb9ce1449c6f2bb3c13e7 SHA-1: 27a66b4334103abc4ff700af921c37aed66f3e7b SHA-256: 81ae6e9e1c95b2c1aaa4fd413f82834692e622096f069d048d38c7fa44c82dc3
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a "free generator / game hack" which redirects to the malicious URL https://netcdn.xyz/app/406889139/master-hack-coin-game-hack. This URL is likely intended to host a malicious payload or lead to further phishing attempts. The document's structure and embedded links suggest it is part of a phishing campaign, likely delivered as a spearphishing attachment.

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/406889139/master-hack-coin-game-hack PDF link annotation
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/rbx-earn_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/how-to-get-free-chest-in-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/roblox-games-to-play-for-free_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/coin-master-free-spins-no-human-verification_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/hacks-roblox_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/minecraft-free-download-laptop_GM479516143.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/coin-master-village-cost_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/roblox-free-hair-girl_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/mcpe-hacks_GM479516143.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/get-2021-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/free-spins-generated-from-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/mcpe-master-hack-coin-apk_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/free-minecraft-account-and-password_GM479516143.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/facebook-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/free-spins-coin-master-android_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
stream_003_off00004ad5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AD5 24232 bytes
SHA-256: 3de2bcd42c672c9ff2da1f0aa2b715c11670d2e0a625995b0b0c6f688ad2b12b
font_01_sfnt_off00008209.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8209 17716 bytes
SHA-256: 458e034195b9d21dc4a16e006206fa5889a20d0bfe7da041b4dcadf36e5a6633

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