Malicious PDF — malware analysis report

Static analysis result for SHA-256 e477f6610fb517a3…

MALICIOUS

PDF

42.4 KB Created: 2021-05-15 06:09:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 62bb20b8fc3b80a3495709b379a6b9fc SHA-1: 4386193f4bebc912784a1808657c9754d81fa590 SHA-256: e477f6610fb517a3d1316634c04e1206ad6302f048a0d94cee28f3f166e9a466
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a malicious redirector link and a visual download button, indicating an attempt to trick the user into downloading potentially harmful content. The ML classifier also flagged this PDF with high confidence. The document body and embedded URLs suggest a lure for game hacks, specifically targeting Coin Master and Roblox players.

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-3.3-hack-version-download-game-hack In PDF document text
    • http://parsbaft.com/images/roblox-play-as-guest-free_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/minecraft-cheats-switch_GM479516143.pdfIn PDF document text
    • http://parsbaft.com/images/free-coins-coin-master-link-today_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/free-robux-generator-no-human-verification-or-surveys_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/coin-master-cheats-without-verification_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/free-roblox-clothes-2021_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/free-robux-images_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/free-spin-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/best-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/coin-master-free-100-spin-link_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/minecraft-free-education_GM479516143.pdfIn PDF document text
    • http://parsbaft.com/images/robux-matchcomfree-robux_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/cool-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/real-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/free-coin-spin-daily-link-net_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/how-to-hack-coin-master_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_off000048e4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48E4 24912 bytes
SHA-256: a718d66651883ad4601a0b555c30068114f0af1114be852ac8948ff3f1b9a621
font_01_sfnt_off000081e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81E1 18668 bytes
SHA-256: c9c08938a486310b32848fcf2d5752b2e836f5cdfc047cd8e0e772ef14e34309