Malicious PDF — malware analysis report

Static analysis result for SHA-256 56f7a8ec291c5288…

MALICIOUS

PDF

34.2 KB Created: 2021-07-03 23:05:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 57ffaef0df0dc14bb4e9c65e70aed807 SHA-1: 527cf2f4629c04588b1fe69ae31f8ce67bd137eb SHA-256: 56f7a8ec291c5288c25470fb913746f85698c0b319b8e5ed6db87e36c01eb64b
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/how-to-hack-coin-master-facebook-game-hack PDF link annotation
    • https://allhimalayantreks.com/userfiles/files/coin-master-free-coins-link-march-2021_GM406889139.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/how-to-gain-more-spins-on-coin-master-for-free_GM406889139.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/how-to-get-minecoins-in-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/roblox-earn_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/roblox-piano-hack_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/hacking-roblox-assain_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/roblox-cheat-apk_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/minecraft-bedrock-edition-pc-download-free_GM479516143.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/free-spins-coin-master-october-17-2021_GM406889139.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/free-roblox-roblox-games_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/roblox-free-script-executor_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/free-roblox-premium_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/games-on-roblox-where-you-win-a-free-clothes_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/coin-master-daily-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/free-coin-master-gifts_GM406889139.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
stream_002_off00002e58.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2E58 23072 bytes
SHA-256: ad34452f3fd294ab83d151a735cb6e0e64b1e639abe40926b1d0afabeb981323
font_01_sfnt_off00006245.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6245 18492 bytes
SHA-256: 01e85d07497bb32c3ce1845552bcf0a86649ff649238031b66b218300dbbc8ca

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