Malicious PDF — malware analysis report

Static analysis result for SHA-256 5eca36253ad0b50f…

MALICIOUS

PDF

33.7 KB Created: 2021-06-19 00:37:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: e9a00abd3938bf131c18047feb6a5f90 SHA-1: 0fd13e02d36935ed0db840d799fe2f1b8d318811 SHA-256: 5eca36253ad0b50f2ba03258168efac2b03b9bca7ca9d7192f99d20d05a7b4a8
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a prominent link to 'netcdn.co' which is flagged as a malicious redirector, likely serving malware. The document body and embedded URLs suggest a lure for game cheats and hacks, indicating a social engineering tactic to trick users into downloading malicious files. No scripts were extracted, but the malicious link and the nature of the lure strongly suggest a downloader or trojan payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/cheat-engine-roblox-speed-hack-6.4-game-hack In PDF document text
    • https://javexglobal.com/image/data/files/spin-coin-master-free_GM406889139.pdfIn PDF document text
    • https://javexglobal.com/image/data/files/free-vip-server-roblox_GM431946152.pdfIn PDF document text
    • https://javexglobal.com/image/data/files/how-to-get-ninja-animation-for-free-roblox_GM431946152.pdfIn PDF document text
    • https://javexglobal.com/image/data/files/coin-master-free-spins-2021-app_GM406889139.pdfIn PDF document text
    • https://javexglobal.com/image/data/files/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • https://javexglobal.com/image/data/files/free-robux-meme_GM431946152.pdfIn PDF document text
    • https://javexglobal.com/image/data/files/free-robux-today_GM431946152.pdfIn PDF document text
    • https://javexglobal.com/image/data/files/is-it-possible-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://javexglobal.com/image/data/files/jailbreak-roblox-hack_GM431946152.pdfIn PDF document text
    • https://javexglobal.com/image/data/files/roblox-azure-mines-hack_GM431946152.pdfIn PDF document text
    • https://javexglobal.com/image/data/files/is-roblox-free-on-xbox_GM431946152.pdfIn PDF document text
    • https://javexglobal.com/image/data/files/how-to-get-hacks-on-minecraft_GM479516143.pdfIn PDF document text
    • https://javexglobal.com/image/data/files/free-coin-master-cards-link_GM406889139.pdfIn PDF document text
    • https://javexglobal.com/image/data/files/free-roblox-app_GM431946152.pdfIn PDF document text
    • https://javexglobal.com/image/data/files/microsoft-robux_GM431946152.pdfIn PDF document text
    • https://javexglobal.com/image/data/files/the-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://javexglobal.com/image/data/files/roblox-premium-free_GM431946152.pdfIn PDF document text
    • https://javexglobal.com/image/data/files/cm-spin-link_GM406889139.pdfIn PDF document text
    • https://javexglobal.com/image/data/files/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
    • https://javexglobal.com/image/data/files/coin-master-free-link-today_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
font_00_sfnt_off00002d86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D86 21452 bytes
SHA-256: ac61d1d2b2f8dcf7399b4d0e96e305305c6d0905b20d038bdbac1f75eb7ed324
font_01_sfnt_off00005c86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C86 19692 bytes
SHA-256: 7047d99ae4c64ccee3858519ed6b153d0e99d9723d900f17f5ef3fbb17c828d7

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