Malicious PDF — malware analysis report

Static analysis result for SHA-256 3602df425fea007b…

MALICIOUS

PDF

41.4 KB Created: 2021-05-13 08:04:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-23
MD5: 3adb083ab6ebbadb4aef6394cacb86d3 SHA-1: 6de139d4df941ff57a9b23d5c4e83f6604f049dd SHA-256: 3602df425fea007bd427eca2b7475e4fdecf16d4adff8c168996a9702fb2792b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors and infrastructure, disguised as game hacks and free generators. The primary link directs to a URL associated with 'coin master free spin and coin link'. The presence of embedded URLs and the ML classifier strongly indicate malicious intent, likely to lead the user to a site that attempts to download further malware or conduct phishing.

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-free-spin-and-coin-link-haktuts-hacking-news-game-hack In PDF document text
    • https://digilib.stieama.ac.id/repository/mc-hacks_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/hack-coin-master-free_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-websites-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-spins-daily-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-apk-114-4_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/hacked-roblox-game_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/moonactive-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-links-for-today_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/robux-hack_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-hack-coin-master-apkmody_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-coins-and-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/links-for-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-ad_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-obby-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-hack-app-download-free_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/mcpe-com_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/robux-game_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_off00004818.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4818 23972 bytes
SHA-256: 2691c910ae77220442cfbe2880f1a5a88cf7a7972dd0d5a936d62028f870ad5c
font_01_sfnt_off00007da6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DA6 18824 bytes
SHA-256: ef8f09fc3c17cc4f26b4837a2aef37de344b1ca430b1a31f5cb27c991d5625de

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