Malicious PDF — malware analysis report

Static analysis result for SHA-256 813823920291b8d5…

MALICIOUS

PDF

34.2 KB Created: 2021-07-03 11:43:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 7cc3dcee02214c08ea73fb2b49fa8a41 SHA-1: 7575cbdde4f44ad4e11a0aa7022f865ddf495418 SHA-256: 813823920291b8d5373488df31079d5d089c4c11f50237b5097bbbcfe4e29be5
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/give-me-free-robux-game-hack PDF link annotation
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/coin-master-free-spin-group_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/coin-master-game-hunters-club_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/coin-master-free-100-spin_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/how-to-get-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/free-coins-and-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/minecraft-pocket-edition-hack_GM479516143.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/free-robux-just-enter-username-and-password_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-your-phone_GM479516143.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/roblox-bloxburg-hack_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/roblox-hack-ga_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/how-to-use-wurst_GM479516143.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/coin-master-hack-spins-app_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/coin-master-spin-link-today-free_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/how-to-remove-hacking-from-roblox_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/free-robux-codes-online_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn3ppu.azzahra1.xyz/__statics/gudangsoal/files/pagina-de-hack-de-roblox_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_off00002fca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FCA 21956 bytes
SHA-256: 17ece9fd92781ca46b05de0a0641a6ae99535dd1997723c22b8fc27074077e80
font_01_sfnt_off00006045.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6045 19144 bytes
SHA-256: 49caa2a42633a23caf301bb0fa3c0edf25e4e3c2cd040ebd05f96fd152ca8770

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