Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ae166107c2b49f4…

MALICIOUS

PDF

34.1 KB Created: 2021-07-09 05:16:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 939d0b092f4acab2a29d01365b249d0e SHA-1: 2a0931687aabe8810596c1cd480b3466a3f787e6 SHA-256: 5ae166107c2b49f440e3c2a160609d36335c857e829edf93431389b5818f32e5
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/cheats-to-get-free-spins-on-coin-master-game-hack PDF link annotation
    • http://perpustakaan.pa-dompu.go.id/repository/como-conseguir-robux-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/create-roblox-account-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/free-robux-mobile_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/how-to-get-wings-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/coin-master-redeem-code-free_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/free-airport-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/coin-master-hack-cheat-generator-coins-and-spins-unlimited_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/free-robux-generator-no-human-verification-or-surveys_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/free-roblox-dominus_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/free-roblox-accounts-with-robux-girl_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/coin-master-hack-version-ios_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/how-to-teleport-using-cheat-engine-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/how-to-play-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/kram-barry-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/hack-master-coin_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/coin-master-hack-apk-with-fb-login-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/roblox-welcome-to-farmtown-beta-hacks_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/coin-master-game-hack-version-download_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/levvvel-coin-master_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
font_00_sfnt_off0000307e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x307E 22496 bytes
SHA-256: 38fc9d55a359030f50d609311f92d3add5408550febb69cf18fa1fafc4488321
font_01_sfnt_off00006296.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6296 18340 bytes
SHA-256: 61fe66d38e523e96b028de00a3a09c91b345645f12b39cddb419abbe350913d0

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