Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8546935a25aab56…

MALICIOUS

PDF

35.3 KB Created: 2021-06-19 22:34:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 6fdffd8d8249671db3d2a52bff46a74d SHA-1: abb58f681f2b7746f5bb0f9279bbaa9d306324cb SHA-256: f8546935a25aab56fec87b7be8cef5cfc32bbeace22cdde80f0a72698e0825e7
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.co/app/431946152/roblox-game-hacks-2021-game-hack PDF link annotation
    • http://opac.salatiga.go.id/slims7//repository/robuxglobalcom-no-verification_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/coin-master-spin-ml-link_GM406889139.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/hack-roblox-strucid_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/robux-scam_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/wahoogaming-co-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/code-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/http-blackgamesus-coinmasterhack_GM406889139.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/roblox-script-hack_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/coin-master-card-collection-link_GM406889139.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/piano-player-roblox-hack_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/free-roblox-accounts-with-builders-club_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/roblox-patched-cheat-engine_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/minecraft-account-hacked_GM479516143.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/robux-hack-artmoney_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/como-hackear-coin-master-espaol_GM406889139.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/games-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/join-for-free-robux_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
font_00_sfnt_off0000308a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x308A 22924 bytes
SHA-256: 46e32353ed78b915c4018d3f39a3d6921613ff9dd28a350b8d39ad94b197362a
font_01_sfnt_off00006404.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6404 19320 bytes
SHA-256: 726bb56f29fe5fecd23b1eb0666217b8b353b01be477a94b1a10f0ea00466196

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