Malicious PDF — malware analysis report

Static analysis result for SHA-256 1825a7e01b861f58…

MALICIOUS

PDF

43.2 KB Created: 2021-05-11 06:33:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-25
MD5: af3ed67649dc30ff9a71308178f93a09 SHA-1: 4fffe0c7e67c89991b07769bcf60dede74da0882 SHA-256: 1825a7e01b861f586d4b60fa9493222836b226438e4c0cf13db8d619fea3ffbd
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to redirector domains, specifically promoting 'game hacks' and 'generators' to lure users. The primary redirector URL is https://netcdn.xyz/app/406889139/coin-master-hack-tool-exe-game-hack, which is associated with malicious activity. The document's structure and embedded links strongly suggest a phishing or malware distribution attempt, likely initiated via a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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-hack-tool-exe-game-hack In PDF document text
    • http://kulturlandschaften.eu/images/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/coin-master-mod-apk-free-download-for-android_GM406889139.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/how-to-get-free-robux-inspect_GM431946152.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/www-coin-master-hack-tk_GM406889139.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/how-to-hack-coin-master-cheat-engine_GM406889139.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/hack-xp-net-generators-coin-master_GM406889139.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/hacks-para-coin-master_GM406889139.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/free-spins-coin-master-app-ios_GM406889139.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/corn-master_GM406889139.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/what-games-on-roblox-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/minecraft-ps4-free_GM479516143.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/coin-master-free-attack-hack_GM406889139.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/free-free-robux_GM431946152.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/coin-master-mod_GM406889139.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/best-free-spin-app-for-coin-master_GM406889139.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/cheats-coin-master-free-spins-and-news_GM406889139.pdfIn PDF document text
    • http://kulturlandschaften.eu/images/coin-master-free-daily-spins-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
stream_003_off0000485b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x485B 27504 bytes
SHA-256: 0abf5352a915cb49b06391ef2c772c3f5e0904cf53377a162b84b5f5889717b0
font_01_sfnt_off00008765.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8765 18000 bytes
SHA-256: 4986d21a4b5a0dd9c27fb69bc80aac457c531d809421d21d3eeb28a335a679e5

Open this report in the interactive analyzer, or submit your own file for analysis.