Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3230abcfab39ba3…

MALICIOUS

PDF

45.7 KB Created: 2021-05-14 09:36:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 365763b8457e06c37c6bd33a6ea01c0c SHA-1: 942de4e1ddbb77648203a2506326c789500a2e5e SHA-256: a3230abcfab39ba3ffa0fd3eb978c2d86df4b5d47fb0b887f7fc91dbcac13b93
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 0.9507

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 https://netcdn.xyz/app/431946152/get-more-robux-game-hack PDF link annotation
    • http://suryaartajaya.co.id/images/can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/minecraft-com-free_GM479516143.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/www-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/minecraft-hack-client-18-9_GM479516143.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/oprewards-robux_GM431946152.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/free-attacks-on-coin-master_GM406889139.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/rbxcity-free-robux_GM431946152.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/100-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/rare-free-links-to-coin-master_GM406889139.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/free-spin-coin-master-twitter_GM406889139.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/freespinandcoin-blogspot-com_GM406889139.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/how-to-scam-on-roblox_GM431946152.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/how-to-hack-a-minecraft-server_GM479516143.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/how-to-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004781.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4781 27524 bytes
SHA-256: 5884f218043c34247eabec3faf41b68e6fdd89439230de9afe10ba9ef91f862b
font_01_sfnt_off00008647.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8647 2816 bytes
SHA-256: 4555740682277f0055d57b15bd0ba953e5b51415ea3d21c93db391eace072d4f
font_02_sfnt_off00009058.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9058 18152 bytes
SHA-256: 3f0afb5031a6524980f5b4f14d61315d560e84a079a8a334c40e6e2be07f7597

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