Malicious PDF — malware analysis report

Static analysis result for SHA-256 6af505f5898aafbf…

MALICIOUS

PDF

42.1 KB Created: 2021-05-13 03:35:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 183952d914e4f657b186c65cbd37de05 SHA-1: 72e6e1b6cedc8a416c82709d497d209e50238677 SHA-256: 6af505f5898aafbf5d66ffd180690148167e6c73109b4d7d88923c243ff16fd4
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains embedded links that redirect to known malicious infrastructure, specifically promoting a hack tool for the game Coin Master. The document body and extracted URLs suggest a social engineering lure designed to trick users into downloading potentially malicious software. While no scripts were explicitly extracted, the PDF's nature and the malicious redirector link strongly indicate an attempt to deliver a payload.

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/android-coin-master-3.4.33-apk-hack-game-hack In PDF document text
    • https://willifox.com/images/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
    • https://willifox.com/images/how-to-change-username-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://willifox.com/images/free-spins-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • https://willifox.com/images/roblox-font-free_GM431946152.pdfIn PDF document text
    • https://willifox.com/images/app-store-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://willifox.com/images/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • https://willifox.com/images/free-spin-and-coin-blogspot-com_GM406889139.pdfIn PDF document text
    • https://willifox.com/images/coin-master-hack-tool-without-verification_GM406889139.pdfIn PDF document text
    • https://willifox.com/images/free-pet-food-for-coin-master_GM406889139.pdfIn PDF document text
    • https://willifox.com/images/hacker-coin-master_GM406889139.pdfIn PDF document text
    • https://willifox.com/images/coin-master-daily-free-spins-25_GM406889139.pdfIn PDF document text
    • https://willifox.com/images/coin-master-hack-to-get-free-spins_GM406889139.pdfIn PDF document text
    • https://willifox.com/images/how-to-get-free-robux-without-verifying-2021_GM431946152.pdfIn PDF document text
    • https://willifox.com/images/minecraft-bedrock-free-with-java_GM479516143.pdfIn PDF document text
    • https://willifox.com/images/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
    • https://willifox.com/images/hacks-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://willifox.com/images/coin-master-hack-apk-july-29_GM406889139.pdfIn PDF document text
    • https://willifox.com/images/bloxland-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://willifox.com/images/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • https://willifox.com/images/roblox-free-robux-generator_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
stream_003_off00004921.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4921 25092 bytes
SHA-256: 1d061bddd4132270a615c0127abb3eefe6558de340ffb504f496ba6b2c0d6086
font_01_sfnt_off000081b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81B7 18368 bytes
SHA-256: 2f065b262c90889b0791dea6979f9c4554e2b44db1fd5e7dc87a2220bb7dab5c