Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfe7357fe2eb0b45…

MALICIOUS

PDF

35.6 KB Created: 2021-07-03 19:00:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: f50954d6c5ae9421b2fd722252bd14f8 SHA-1: ed7946e1e16a24836d8fd38a1bd9864a4740600b SHA-256: bfe7357fe2eb0b4510e4d6e5bcfabe752dd23897521dd30c2d0f68bfe53f0a1d
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/how-to-get-free-pet-food-on-coin-master-game-hack PDF link annotation
    • https://morishita-tc.com.tw/image/data/files/uprobuxcom-free-robux_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/free-minecraft-skins-pe_GM479516143.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/how-to-get-free-obc-and-robux-2021_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/get-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/password-free-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/free-car-glitch-in-roblox-vehicle-sim_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/coin-master-links-to-free-spins_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/roblox-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/free-ninja-animation-roblox-2021_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/how-to-hack-someones-account-on-roblox_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/roblox-btools-hack-script_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/roblox-assassin_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/roblox-superhero-tycoon-hack-script-pastebin_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/coin-master-free-spins-link-download-ios_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/minecraft-pe-hack-client-ios_GM479516143.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/mad-city-cheat-codes-season-2-roblox-website_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/coin-master-free-spin-app-iphone_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/robux-get-com-free_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/how-to-use-cheat-engine-for-roblox-2021_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/robux-hack-no-human-verification_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_off000034c4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x34C4 22896 bytes
SHA-256: 0cf49926011a23189bb1f8f9ba8726e1ed7b75e4d390d324615f07d1a1ad698e
font_01_sfnt_off00006814.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6814 18492 bytes
SHA-256: 7fed4562ba490980d32b753115adbbbf587e09585f87f2f3eab3679b69c69736

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