Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e9060849c521a3a…

MALICIOUS

PDF

34.9 KB Created: 2021-07-06 02:32:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 8a78e15d602b7e53bc4ce92f37430d2f SHA-1: 11dc5cb9f34d8ba87d522eb517cc3db48ca4bf41 SHA-256: 2e9060849c521a3a9de060fcd59bcdbc4ffc0894ee0c05b6e87d9edca006fbb2
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/coin-master-link-today-game-hack PDF link annotation
    • http://library.forda-mof.org/katalog/repository/coin-master-coins-free_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/offers-for-robux_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/daily-coin-master-free-link_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-robux-discord-servers_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/minecraft-realms-free-trial_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/ww-robux_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/no-verification-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/100-robux_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/bloxpage-free-robux_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-twitter_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-spin-hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-free-spins-and-free-coins_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-free-spins-app-for-iphone_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/minecraft-mod-updater_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/get-robux-com_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-free-spins-activegamer_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-online-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/pig-master-coin-master-free-spin_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-hack-roblox-with-charles_GM431946152.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_002_off000032bf.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32BF 22640 bytes
SHA-256: 4eefef9060ef5207c6e6a37b15728878a50619d6da6475c2af5ae857dce070e9
font_01_sfnt_off00006567.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6567 18356 bytes
SHA-256: a0a0724bc66754c09fd06c8492cc7e1865f42ab17c8ab237f13f9486378ddf6f

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