Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd00f0609e322293…

MALICIOUS

PDF

42.8 KB Created: 2021-05-16 13:49:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 3bdda515f259c2a56955537e36773c04 SHA-1: ad2954e72dc463233bc62a02abf8e1bf46fa487d SHA-256: dd00f0609e32229367a64bb9f6ccf4a76c2c74fec9e1821ef1d2dede54a48d62
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains embedded links pointing to known malicious redirector infrastructure, specifically designed to lure users into downloading applications. The document body, though heavily obfuscated, contains references to game hacks and includes a URL that appears to be a download link for a modified application. This suggests a social engineering attack aimed at tricking users into downloading and executing potentially harmful software.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 3

  • 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 https://netcdn.xyz/app/406889139/coin-master-apk-hack-3.5-8-game-hack In PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/roblox-army-free-robux_GM431946152.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/oprewards-free-robux_GM431946152.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/free-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/unlimited-spin-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/how-to-get-roblox-premium-for-free_GM431946152.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/wurst-hacks_GM479516143.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/can-you-really-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/free-pet-food-for-coin-master_GM406889139.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/coin-master-hack-mod-apk-35-8_GM406889139.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/free-pet-snacks-coin-master_GM406889139.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/coin-master-20-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/free-links-coin-master_GM406889139.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/rblx-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/coin-master-free-daily-spins_GM406889139.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
stream_003_off00004bec.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BEC 24772 bytes
SHA-256: 24fb2690fc7010cb1e43df826bae8967fb48b9a216bc56b335d30437698d3860
font_01_sfnt_off0000843e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x843E 18476 bytes
SHA-256: b9b6adf449100deb59ed95ea3ad5e02aaf3681432d01b6b7dc02955a5f5017fc