Malicious PDF — malware analysis report

Static analysis result for SHA-256 e097d92c4b7a7c4b…

MALICIOUS

PDF

42.8 KB Created: 2021-05-12 13:13:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-16
MD5: 8118ecc7185829dd4183e77346191202 SHA-1: d5963951e9b8ceb27cb99fbd45a90a0bdcc6bd36 SHA-256: e097d92c4b7a7c4b0ad2b6316ff48ece9dd8dfa244e88fb90ba34c11d8481784
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, including one identified as a malicious redirector for a 'game hack'. The presence of a visual download button lure and the ML classifier's high confidence score further support the malicious nature of this document. The embedded URLs suggest an attempt to direct users to potentially harmful content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/406889139/coin-master-cheat-codes-game-hack In PDF document text
    • https://www.anagoria.com/images/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://www.anagoria.com/images/free-minecraft-mods-for-xbox-one_GM479516143.pdfIn PDF document text
    • https://www.anagoria.com/images/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://www.anagoria.com/images/i-robux_GM431946152.pdfIn PDF document text
    • https://www.anagoria.com/images/100-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.anagoria.com/images/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • https://www.anagoria.com/images/coin-master-hack-apk-download-for-android_GM406889139.pdfIn PDF document text
    • https://www.anagoria.com/images/robux-offers_GM431946152.pdfIn PDF document text
    • https://www.anagoria.com/images/coin-master-spin-hack-2021_GM406889139.pdfIn PDF document text
    • https://www.anagoria.com/images/coin-master-free-spins-1-coin-master_GM406889139.pdfIn PDF document text
    • https://www.anagoria.com/images/coin-master-spin-link-hack_GM406889139.pdfIn PDF document text
    • https://www.anagoria.com/images/june-29-coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • https://www.anagoria.com/images/free-spin-link-coin-master-app_GM406889139.pdfIn PDF document text
    • https://www.anagoria.com/images/how-to-get-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • https://www.anagoria.com/images/free-spins-coin-master-2021-hack_GM406889139.pdfIn PDF document text
    • https://www.anagoria.com/images/free-robux-easy_GM431946152.pdfIn PDF document text
    • https://www.anagoria.com/images/coin-master-hack-apk-no-survey_GM406889139.pdfIn PDF document text
    • https://www.anagoria.com/images/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • https://www.anagoria.com/images/roblox-hacked-version_GM431946152.pdfIn PDF document text
    • https://www.anagoria.com/images/robux-no-human-verification_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_off0000490c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x490C 26608 bytes
SHA-256: 35d1238f13842d3be43442b70ee97d66dc55c3717d26d6b439d4719160696f21
font_01_sfnt_off00008636.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8636 17884 bytes
SHA-256: 9ccd68c54c009ea11d55f1e27d33615aaba425727d3c9dac5b634b519021a5b7

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