Malicious PDF — malware analysis report

Static analysis result for SHA-256 20530aa0aeed87f7…

MALICIOUS

PDF

33.6 KB Created: 2021-07-03 15:16:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: cb1547e837da9ce5159faf31efe83bde SHA-1: 90685d92c0c90b117ac871b33fa644cb21dbe766 SHA-256: 20530aa0aeed87f7b871eb9e513f0b2ee0f9f383b118fdbd3fbafa65afdf45f3
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/479516143/minecraft-that-you-can-play-for-free-game-hack PDF link annotation
    • https://morishita-tc.com.tw/image/data/files/united-gaming-net-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/get-free-robux-today_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/vechle-simulator-roblox-hack_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/is-roblox-hacked_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/script-to-free-objet-in-roblox_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/roblox-project-pokemon-dll-hack_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/plug-toolbox-for-minecraft-free-ios_GM479516143.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/coin-master-daily-free-coins-link_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/roblox-weapon-hack-pastebin_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/roblox-cheats-tool_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/free-robux-viseo-not-clickbait_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/roblox-free-robux-pins_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/how-to-hack-roblox-with-brutis_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/free-robux-reddit_GM431946152.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/free-robux-just-enter-your-username_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/roblox-for-free-online-no-download_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/minecraft-pocket-edition-free-ios_GM479516143.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/toolbox-for-minecraft-pe_GM479516143.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_off00002e48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E48 22048 bytes
SHA-256: 273bcfdc27025a704646275b8a00143ef5e079bb11c4a49c29c1528b09b9b6f5
font_01_sfnt_off00005eed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EED 18872 bytes
SHA-256: c14a64e1cd9767792e23c361a5442cbd2271d12f8fb26f1f3810dea2f6830d61

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