Malicious PDF — malware analysis report

Static analysis result for SHA-256 614257917fc7781a…

MALICIOUS

PDF

33.4 KB Created: 2021-07-05 17:48:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 472c213481f4d49fcd36fd932cf3f513 SHA-1: a4f247e713f72e336a5515d8643e33601fade4a8 SHA-256: 614257917fc7781a9983816d3dd733f5d4d36080d0688d5cb16e9098ddb375bd
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/479516143/worst-client-game-hack PDF link annotation
    • http://stitqi.ac.id/website/repository/robux-free-c_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/easy-way-to-get-robux_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-club-hack_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/pokemon-go-free-bag-upgrade_GM1094591345.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/minecraft-hacks-115-2_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/free-coin-master-spins-without-human-verification_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/minecraft-pvp-hacks_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/google-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/roblox-free-robux-no-survey-no-password_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/free-roblox-money_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/mcpe-116_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-free-coin-hack_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/free-tiktok-fans-no-verification-2021_GM835599320.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/easy-robux-today-com_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-hack-2021-without-human-verification_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/roblox-free-pets_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/how-to-make-a-free-minecraft-account_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
font_00_sfnt_off00002f97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F97 22044 bytes
SHA-256: 167e663567a7e4b2aa0860e24a7d87bcce35670ae4285bac20de309e81409057
font_01_sfnt_off00006001.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6001 18268 bytes
SHA-256: 8b30a448b913d11a2a6b7b921c00b9dae66b30c95af84406145eaf57377eae8c

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