Malicious PDF — malware analysis report

Static analysis result for SHA-256 15dbae3a1a584bc3…

MALICIOUS

PDF

34.1 KB Created: 2021-07-04 00:46:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 4c8f23699feca885981cf3bf862717d5 SHA-1: a075381f83487b4d3265c4e916b70dc907f98784 SHA-256: 15dbae3a1a584bc3c9c2edd67f5220222768a493f63af974d97cfb7a46ee1edf
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a lure related to 'Como Hackear Coin Master Espaol' and links to external URLs that promise game hacks. The presence of a 'download button' heuristic and numerous embedded URLs strongly suggests a social engineering tactic to trick users into downloading potentially malicious content. No scripts were extracted from this sample, but the overall pattern indicates a phishing or malware distribution attempt.

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/como-hackear-coin-master-espaol-game-hack PDF link annotation
    • http://lib.stimykpn.ac.id//repository/2021-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/rbxquest-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/pubg-uc-no-verification_GM1330123889.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-hack-tool-download-pc_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/martian-lettuce-coin-master-free_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-use-cheat-engine-on-roblox-undetected_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/hack-icebreaker-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-get-coin-master-card-free_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-immortal-hack_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/speed-roblox-hack-mac_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-get-free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-bc-robux_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/cool-roblox-free-games_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-game-hacks_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-pinewood-core-op-weapons-free_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-hack-online_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-minecraft-bedrock-server_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/robux-legit-hack_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_off00002eb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EB9 22884 bytes
SHA-256: 14d039568dbad0750bbbc2fb51a60b4ff35b2e82e022b5830b28a52b7c47761a
font_01_sfnt_off000061ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61ED 18516 bytes
SHA-256: 2733bbd7379f0315f5029cf6e8e3afc196c30f36adae5721920a74f68d8b4415

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