Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb9936a5ee686f14…

MALICIOUS

PDF

35.6 KB Created: 2021-07-01 13:07:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 751a6c8f197ec86983e10f3bd15ae107 SHA-1: ef0df241e5ebe2fdcf92bc69f5568d5ec95cba86 SHA-256: bb9936a5ee686f1410d1bc8ef891a35bace77e40d88a19916a044d67ac4acc02
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

This PDF document contains multiple links, including one identified as a malicious redirector. The document body and heuristics suggest a lure for free game items or hacks, specifically targeting Roblox and Coin Master. The primary link, http://netcdn.co/app/431946152/how-to-get-free-stuff-on-roblox-computer-game-hack, is likely intended to lead the user to download or execute a secondary payload. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/how-to-get-free-stuff-on-roblox-computer-game-hack In PDF document text
    • https://stain-madina.ac.id/assets/ckfinder/userfiles/files/free-roblox-usernames-and-passwords_GM431946152.pdfIn PDF document text
    • https://stain-madina.ac.id/assets/ckfinder/userfiles/files/coin-master_GM406889139.pdfIn PDF document text
    • https://stain-madina.ac.id/assets/ckfinder/userfiles/files/roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • https://stain-madina.ac.id/assets/ckfinder/userfiles/files/how-to-get-robux-in-hack_GM431946152.pdfIn PDF document text
    • https://stain-madina.ac.id/assets/ckfinder/userfiles/files/minecraft-building-hacks_GM479516143.pdfIn PDF document text
    • https://stain-madina.ac.id/assets/ckfinder/userfiles/files/impact-hack-roblox-download_GM431946152.pdfIn PDF document text
    • https://stain-madina.ac.id/assets/ckfinder/userfiles/files/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • https://stain-madina.ac.id/assets/ckfinder/userfiles/files/hack-crack-for-coin-master-currency_GM406889139.pdfIn PDF document text
    • https://stain-madina.ac.id/assets/ckfinder/userfiles/files/how-to-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • https://stain-madina.ac.id/assets/ckfinder/userfiles/files/minecraft-windows-10-edition-free_GM479516143.pdfIn PDF document text
    • https://stain-madina.ac.id/assets/ckfinder/userfiles/files/how-to-get-minecraft-bedrock-edition-for-free_GM479516143.pdfIn PDF document text
    • https://stain-madina.ac.id/assets/ckfinder/userfiles/files/free-back-accessories-roblox_GM431946152.pdfIn PDF document text
    • https://stain-madina.ac.id/assets/ckfinder/userfiles/files/wikihow-how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • https://stain-madina.ac.id/assets/ckfinder/userfiles/files/minecraft-apk-free-download_GM479516143.pdfIn PDF document text
    • https://stain-madina.ac.id/assets/ckfinder/userfiles/files/coin-master-hack-fast-org_GM406889139.pdfIn PDF document text
    • https://stain-madina.ac.id/assets/ckfinder/userfiles/files/earn-robux-now_GM431946152.pdfIn PDF document text
    • https://stain-madina.ac.id/assets/ckfinder/userfiles/files/robux-online_GM431946152.pdfIn PDF document text
    • https://stain-madina.ac.id/assets/ckfinder/userfiles/files/gamesofficenet-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://stain-madina.ac.id/assets/ckfinder/userfiles/files/roblox-login-with-these-free-accounts_GM431946152.pdfIn PDF document text
    • https://stain-madina.ac.id/assets/ckfinder/userfiles/files/how-to-hack-roblox-accounts-for-robux_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_off00003214.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3214 22700 bytes
SHA-256: d53d2aa8ea292608fab69b96597979d01af1cfa573407f4495237361c8870df0
font_01_sfnt_off000064b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64B5 19492 bytes
SHA-256: ffc2ba013c6052a114925bdf830345100b460eae74c4c7d712a780d55cdb3ef3

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