Malicious PDF — malware analysis report

Static analysis result for SHA-256 df9fd63148bad627…

MALICIOUS

PDF

34.4 KB Created: 2021-06-26 09:02:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 9eed5b2f0fa0b179715b92adde3e403c SHA-1: 808c1fb4bc8ca081a27ecd31e0c5da4f68f042f8 SHA-256: df9fd63148bad62700f00761f9875ff4a925808a9316d140aba549cf52f84208
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a prominent link and text related to 'Roblox Hack Robux Promo Code', which is a common lure for phishing and malware distribution. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' confirms this, indicating the link directs users to a site offering game hacks. The primary IOC is the malicious URL identified, which likely serves as the landing page for the scam.

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.co/app/431946152/roblox-hack-robux-promo-code-game-hack PDF link annotation
    • http://perpus.ft.undip.ac.id/pustaka/repository/best-free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://perpus.ft.undip.ac.id/pustaka/repository/how-to-get-creative-mode-in-minecraft-server-hack_GM479516143.pdfIn PDF document text
    • http://perpus.ft.undip.ac.id/pustaka/repository/coin-master-coins_GM406889139.pdfIn PDF document text
    • http://perpus.ft.undip.ac.id/pustaka/repository/free-gears-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.ft.undip.ac.id/pustaka/repository/how-to-hack-any-person-in-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.ft.undip.ac.id/pustaka/repository/coin-master-mod_GM406889139.pdfIn PDF document text
    • http://perpus.ft.undip.ac.id/pustaka/repository/roblox-hack-999999-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://perpus.ft.undip.ac.id/pustaka/repository/how-to-hack-coin-master-with-lucky-patcher_GM406889139.pdfIn PDF document text
    • http://perpus.ft.undip.ac.id/pustaka/repository/minecraft-windows-free_GM479516143.pdfIn PDF document text
    • http://perpus.ft.undip.ac.id/pustaka/repository/coin-master-free-spins-link-download-ios_GM406889139.pdfIn PDF document text
    • http://perpus.ft.undip.ac.id/pustaka/repository/roblox-sk8r-game-kicked-me-for-no-cheating_GM431946152.pdfIn PDF document text
    • http://perpus.ft.undip.ac.id/pustaka/repository/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://perpus.ft.undip.ac.id/pustaka/repository/free-roblox-groups-with-funds_GM431946152.pdfIn PDF document text
    • http://perpus.ft.undip.ac.id/pustaka/repository/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://perpus.ft.undip.ac.id/pustaka/repository/how-to-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://perpus.ft.undip.ac.id/pustaka/repository/free-roblox-gift-card-codes-2021-unused_GM431946152.pdfIn PDF document text
    • http://perpus.ft.undip.ac.id/pustaka/repository/free-redeem-robux-cards_GM431946152.pdfIn PDF document text
    • http://perpus.ft.undip.ac.id/pustaka/repository/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.ft.undip.ac.id/pustaka/repository/guuudd-info-for-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.ft.undip.ac.id/pustaka/repository/how-to-get-free-robux-easy-2021_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_off00002f0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F0A 22364 bytes
SHA-256: e4aa51d471032134f24b20bcb3927de7d56f0ba2db9ec2e6bd89e0a162d4efe9
font_01_sfnt_off00006083.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6083 19384 bytes
SHA-256: 514f61805cc00096569fbc431a7f834170f7045a8b4affd72bdadb56f8560ade

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