Malicious PDF — malware analysis report

Static analysis result for SHA-256 330d9bc75aae895e…

MALICIOUS

PDF

34.1 KB Created: 2021-06-30 20:54:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: fecfc100abb340c298d87282a0f40026 SHA-1: 1080808b67a89b0dddb4a700a4d40cfae58524e5 SHA-256: 330d9bc75aae895e6c202b7627094005cffab2503fb1248c5a40233494298b56
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/robux-hack-2021-hack-game-hack PDF link annotation
    • https://library.elkatarie.ac.id/repository/robux-cheaten_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/roblox-hack-scripts-level-7_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-unlimited-robux-codes_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/play-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/roblox-craftwars-cheats_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-bc-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-robux-now_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-stuff-on-roblox-on-computer_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/cartoon-roblox-character-free_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/how-to-hack-roblox-vehicle-simulator-using-cheat-engine_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/cm-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-roblox-users_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/pokemon-brick-bronze-roblox-hack_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-roblox-codes-no-human-verification_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/get-free-robux-for-free_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/roblox-free-not-to-download_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-robux-that-really-works_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/ant-man-helmet-roblox-free_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_off00002ece.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2ECE 22080 bytes
SHA-256: 173f1e3c5473b98014d646aab6796cad1de16c62f5dece71839b0649a1e1cfe9
font_01_sfnt_off00005fa8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FA8 19124 bytes
SHA-256: a01abce438ace15ff0d22223d5cc83267d648dadbc6e7de58085c68645cb2558