Malicious PDF — malware analysis report

Static analysis result for SHA-256 5330b2fb5ca7b388…

MALICIOUS

PDF

34.3 KB Created: 2021-07-03 19:02:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 5c99b5425946de6f9b26e1455f388b58 SHA-1: ea22a985775eb1453c75f60e8fb69ad2602a4069 SHA-256: 5330b2fb5ca7b388d76c88fb5359d6ed66c17e62eceaf9f28f01746f25111cba
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/431946152/do-robux-generators-work-game-hack PDF link annotation
    • http://stiepariperpus.web.id/sarjana//repository/how-to-get-free-roblox-hair_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/roblox-urbis-money-hack_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/roblox-robux-generator_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/how-to-hack-roblox-using-tampermonkey_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/how-to-free-cloths-roblox-no-robux-or-inspect_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/free-attacks-coin-master_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/how-to-hack-coin-master-using-es-filer_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/free-robux-clothes_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/roblox-jailbreak-auto-rob-hack_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/hack-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/is-it-possible-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/roblox-apocalypse-rising-speed-hack-2021_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/coin-monster_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/free-robux-real-no-human-verification_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/wurst-115-2_GM479516143.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/free-robux-hack-on-pc-2021_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/minecraft-java-edition-code-free_GM479516143.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/roblox-com-hack_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/what-is-coin-master-app_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_off00002fa0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FA0 22068 bytes
SHA-256: c8d8b26593c6403df7dfc75f7519077566a576b482c5c297fa9fdb677d6ad937
font_01_sfnt_off00006077.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6077 19192 bytes
SHA-256: 3f47549173c4c073ff6b774dc640a5bd882cb9edb94891ada683af003a6a3260

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