Malicious PDF — malware analysis report

Static analysis result for SHA-256 3307e084346ddfaf…

MALICIOUS

PDF

39.1 KB Created: 2021-07-16 05:54:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 8962c34b452fdfa8fa3db73b2005f732 SHA-1: f47b2fd06cbad15f59dd30c014fd3350fe692aef SHA-256: 3307e084346ddfaf142c650e7af8e04ee24a14d5c5e6c628d5b74a8aab003766
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 0.9985

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/coin-master-3533-android-hack-game-hack PDF link annotation
    • https://sparkthis.org/ckfinder/userfiles/files/free-robux-site_GM431946152.pdfIn PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/coin-master-free-spins-link-today-hack_GM406889139.pdfIn PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/free-robux-meep-city_GM431946152.pdfIn PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/hackear-roblox-para-android_GM431946152.pdfIn PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/free-robux-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/best-way-to-get-robux_GM431946152.pdfIn PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/beyond-roblox-hack-scriptr_GM431946152.pdfIn PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/free-minecraft-mods-for-xbox-one_GM479516143.pdfIn PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/can-i-get-robux-for-free_GM431946152.pdfIn PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/how-to-get-minecraft-for-free-on-android_GM479516143.pdfIn PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/coin-master-hack-injection_GM406889139.pdfIn PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/free-robux-group_GM431946152.pdfIn PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/what-is-the-money-cheat-for-roblox_GM431946152.pdfIn PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/best-free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/robux-4all-cool-hack_GM431946152.pdfIn PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/coin-master-hack-ios-reddit_GM406889139.pdfIn PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/free-spin-coin-master-hacktoman_GM406889139.pdfIn PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/how-to-hack-roblox-on-pc_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
stream_002_off00003e0f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3E0F 24628 bytes
SHA-256: ed356560a10ae88dd11bfd5532de64af44c6d3de19ab6567d3a98fdfa02b79c5
font_01_sfnt_off000076aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76AA 18196 bytes
SHA-256: dcb33034cc58ce1217dbd5b6274ede2fc62df16ef41450d00994050c1588cc7c

Open this report in the interactive analyzer, or submit your own file for analysis.