Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6ad45458d4b5f0c…

MALICIOUS

PDF

36.2 KB Created: 2021-07-01 10:28:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: e9cfe4c62db40f11ac9dbdb5f485f245 SHA-1: d545cddb4b9ed4f987f65deafb3912f337241eb0 SHA-256: e6ad45458d4b5f0c04d22d1a60dcd1dc70dfc2f07531bbf2b43a518f577ce787
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.co/app/431946152/midnight-racing-sur-roblox-free-tier-2-car-game-hack PDF link annotation
    • http://mtsn-baranti.com/perpus/repository/roblox-hacks-2021-jailbreak_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-free-spins-2021-ios_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-free-name-changer_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-free-spins-links-app_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/pastebin-hack-robux-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/martian-lettuce-coin-master-free_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-do-people-get-robux-without-hacking_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/claimrbx-free-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/cheat-codes-for-deletive-mod-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-phanthom-forces-credits-hack_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-2021-no-verification_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-free-printables_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-human-verification_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-promo-codes-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/aesthetic-free-t-shirt-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-free-coins_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_off0000345f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x345F 22644 bytes
SHA-256: ea352410227b6536696d3fb4e15f21e56487c167781a7f277dde5a395839f2a4
font_01_sfnt_off000066d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66D5 19672 bytes
SHA-256: e8164ec763199b403047d6d7234e0592e152b5777794295a5265b350e0f7bc02

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