Malicious PDF — malware analysis report

Static analysis result for SHA-256 10e62c584089223e…

MALICIOUS

PDF

34.9 KB Created: 2021-07-03 13:43:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 2c98494e438f16ecada4cec06198bc5e SHA-1: af97382a91bde050a2eb4a7fa82aceeb0e1a576f SHA-256: 10e62c584089223e7bd8f50229f58897a64f02d4ce5ddbd94fb84b901d0e4a46
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by an ML classifier. It uses a clipboard-command (paste-and-run) lure. 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 5

  • 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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/free-2021-robux-game-hack PDF link annotation
    • http://atrax.hr/files/spin-coin-master-free_GM406889139.pdfIn PDF document text
    • https://www.atrax.hr/files/minecraft-realms-free-codes_GM479516143.pdfIn PDF document text
    • https://www.atrax.hr/files/roblox-cheat-script-auto-farm-super-power-training-simulator_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/free-clothes-roblox-girl_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/how-to-get-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
    • http://atrax.hr/files/inject-hack-app-roblox_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/free-roblox-followers-generator_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/coin-master-100-spin-hack_GM406889139.pdfIn PDF document text
    • https://www.atrax.hr/files/coin-master-apk-hack_GM406889139.pdfIn PDF document text
    • http://atrax.hr/files/free-roblox-templates_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/mathep_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/http-coin-master-hack-club_GM406889139.pdfIn PDF document text
    • https://www.atrax.hr/files/free-minecraft-account-and-password-generator_GM479516143.pdfIn PDF document text
    • http://atrax.hr/files/free-minecraft-packs_GM479516143.pdfIn PDF document text
    • http://atrax.hr/files/coin-master-free-spins-23-march-2021_GM406889139.pdfIn PDF document text
    • http://atrax.hr/files/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/robux-for-surveys_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/instant-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003055.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3055 22636 bytes
SHA-256: 663c21400726160c520341990fc77a183164755f68c6e5de0693637573ff0d1a
font_01_sfnt_off00006320.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6320 19116 bytes
SHA-256: af14d1fa5b4f919e14fbfd2207fee29f86c7e1258ad11836ead4aea48baef512

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