Malicious PDF — malware analysis report

Static analysis result for SHA-256 07d63dc6f70ab2a4…

MALICIOUS

PDF

42.2 KB Created: 2021-05-16 00:00:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 9ba547951c52c2a99adb154fb917260f SHA-1: c960c643b1579fae5cd5e83464960430628f323d SHA-256: 07d63dc6f70ab2a48a299303c044879445701ce81cbcbf9b6514c9a975da456d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors and lures users with promises of game hacks and free currency. The document's content and embedded links strongly suggest a phishing or scam attempt, likely delivered as a spearphishing attachment. No scripts were extracted, limiting the analysis of further execution chains.

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-how-to-get-japan-sushi-card-free-game-hack In PDF document text
    • http://winnerwater.com.tw/image/data/files/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/best-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/free-roblox-executor-no-key_GM431946152.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/minecraft-download-free-download_GM479516143.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/free-spins-for-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/coin-master-hack-xyz_GM406889139.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/coin-master-hack-apk-2021_GM406889139.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/coin-master-hack-apk-with-fb-login_GM406889139.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/how-to-get-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/easy-robux-generator_GM431946152.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/coin-master-app-hacks_GM406889139.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/roblox-survey-for-robux_GM431946152.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/coin-master-card-hack_GM406889139.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/minecraft-windows-10-free-with-java_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000047d7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47D7 24884 bytes
SHA-256: fe64806e63dd7c52e2b9696f90c569ccae6b99db69994b785b78c93cb159988c
font_01_sfnt_off0000819b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x819B 18696 bytes
SHA-256: b658d8f1c141fc8c479f08926c8ce77f4430151ae81ac58e32bab20f08e84866

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