Malicious PDF — malware analysis report

Static analysis result for SHA-256 1366e004c760d1d8…

MALICIOUS

PDF

36.0 KB Created: 2021-07-06 01:20:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 0e9763f14cbd4e1419279465fd2d7709 SHA-1: 181a576f9851816caca6e4e1d7034abc62ecedc9 SHA-256: 1366e004c760d1d83829e9eca253081d1a503d97f1c50a344c814efdbf7f2e38
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/406889139/coin-master-hack-355-game-hack PDF link annotation
    • https://dribledasortegaucho.com.br/uploads/files/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/coin-master-hack-game-download-ios_GM406889139.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/free-shoulder-pet-roblox_GM431946152.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/minecraft-hacks-ps4_GM479516143.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/free-roblox-card_GM431946152.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/wurst-hacks_GM479516143.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/more-robux_GM431946152.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/free-roblox-accounts-with-admin-permissions_GM431946152.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/mobihack-net-roblox-hack_GM431946152.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/impact-hack-roblox-hp_GM431946152.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/free-spins-coin-master-2021-no-verification_GM406889139.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/coin-master-hacks-xyz_GM406889139.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/how-to-hack-roblox-on-ipad-2021_GM431946152.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/free-robux-live_GM431946152.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/roblox-bux-free_GM431946152.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/pastebin-hack-robux-fast_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_off00003610.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3610 23056 bytes
SHA-256: 158624b6a7fe1e4de532fcf9b3828e80b4d636784b2d662cd2c9e61aa71591aa
font_01_sfnt_off000069d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69D2 18312 bytes
SHA-256: d85fcae918ae0577b30566467e9eb1c1b3d3ed93e6014f5cfab93d36950401f7