Malicious PDF — malware analysis report

Static analysis result for SHA-256 01d43da9f65bcd0e…

MALICIOUS

PDF

36.0 KB Created: 2021-07-06 11:54:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 6efe2e8d90a67f6b3d52bf9c0462b4fb SHA-1: fda64482cee3f3e2807a922b33712e2188f6aec1 SHA-256: 01d43da9f65bcd0e7bbcb6d9498489b76bd65bbad71c355711ae97b07caf9d26
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/406889139/25-free-spins-coin-master-game-hack PDF link annotation
    • http://perpustakaan.kemenkopmk.go.id/perpus/perpus/repository/minecraft-dungeons-free-download-pc_GM479516143.pdfIn PDF document text
    • http://perpustakaan.kemenkopmk.go.id/perpus/perpus//repository/114-hacks_GM479516143.pdfIn PDF document text
    • http://perpustakaan.kemenkopmk.go.id/perpus/perpus/repository/do-you-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://perpustakaan.kemenkopmk.go.id/perpus/perpus/repository/roblox-free-candy-decal_GM431946152.pdfIn PDF document text
    • http://perpustakaan.kemenkopmk.go.id/perpus/perpus//repository/oprewards-com-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.kemenkopmk.go.id/perpus/perpus/repository/roblox-one-piece-grand-trial-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.kemenkopmk.go.id/perpus/perpus/repository/how-to-hack-admin-on-roblox-games_GM431946152.pdfIn PDF document text
    • http://perpustakaan.kemenkopmk.go.id/perpus/perpus/repository/coin-master-twitter-free-spins_GM406889139.pdfIn PDF document text
    • http://perpustakaan.kemenkopmk.go.id/perpus/perpus/repository/roblox-bloxburg-free-money_GM431946152.pdfIn PDF document text
    • http://perpustakaan.kemenkopmk.go.id/perpus/perpus//repository/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.kemenkopmk.go.id/perpus/perpus//repository/best-minecraft-hacked-client-2021_GM479516143.pdfIn PDF document text
    • http://perpustakaan.kemenkopmk.go.id/perpus/perpus/repository/open-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.kemenkopmk.go.id/perpus/perpus/repository/roblox-hack-scripts-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.kemenkopmk.go.id/perpus/perpus/repository/free-roblox-harley-quinn_GM431946152.pdfIn PDF document text
    • http://perpustakaan.kemenkopmk.go.id/perpus/perpus/repository/free-coins-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.kemenkopmk.go.id/perpus/perpus/repository/best-home-free-models-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.kemenkopmk.go.id/perpus/perpus/repository/robux-hacks-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://perpustakaan.kemenkopmk.go.id/perpus/perpus//repository/facebook-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://perpustakaan.kemenkopmk.go.id/perpus/perpus/repository/100-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://perpustakaan.kemenkopmk.go.id/perpus/perpus/repository/can-you-host-a-minecraft-server-for-free_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_off0000362d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x362D 22904 bytes
SHA-256: 0030b837046c37e4cb164ba83309afbbfe27150f1ff752876d55de3142f747ba
font_01_sfnt_off00006974.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6974 18432 bytes
SHA-256: ec79058dc3660cd38899abd0af6a529c62159de1466b2a8febb865623eb50a1d

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