Malicious PDF — malware analysis report

Static analysis result for SHA-256 0008346e4e3a9a20…

MALICIOUS

PDF

35.0 KB Created: 2021-07-06 04:40:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 2d5483c8bfd2121f3f402a9b75b25f1e SHA-1: 8047740a125983bc7418f84e8e223f38c13d33dd SHA-256: 0008346e4e3a9a2083fe7adf4a7b3557fd08bba7dceb2cbcc69521e94a4fb5a9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that redirect to game-related lures, such as 'Roblox Hacked Accounts List' and 'free robux'. These links point to known malicious redirector infrastructure. The document's primary purpose appears to be social engineering users into visiting these malicious sites, likely for credential harvesting or malware distribution.

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.tw/app/431946152/roblox-hacked-accounts-list-game-hack In PDF document text
    • http://slims.abulyatama.ac.id//repository/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/corrupt-free-roblox-torso_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-get-wings-for-free-in-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-robux-please_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-robux-admin-panel-twitter_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-free-spins-link-2021-twitter_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-get-minecraft-bedrock-edition-on-pc-for-free_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/hack-work-at-a-pizza-place-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-system_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-get-free-cars-in-roblox-ultimate-driving_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/rewards-roblox-com_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-robux-commercials_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-roblox-account-names_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-avatar-maker-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-add-cute-clothes-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-admin-hack-download_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-too-hack-in-superhero-simulator-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-instagram-free-spins_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-boost-com-free-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_off0000323f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x323F 22028 bytes
SHA-256: c9431e77a06316c037ce86e3900171bf0d4983196abda525f01cfcea2bec4e21
font_01_sfnt_off00006342.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6342 19196 bytes
SHA-256: 2354f61238ce38ceaa6bb2dc8bd62f8c720a6367dd27d5b4fd20c885c9a0b347

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