Malicious PDF — malware analysis report

Static analysis result for SHA-256 0280235b82867595…

MALICIOUS

PDF

220.9 KB Created: 2021-07-06 08:26:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 833b7e9ba721d5c2bcf2448a531f3a4b SHA-1: fec0d0ea6e916ca78ba874304fa77232f8476c79 SHA-256: 0280235b8286759575520892d6c3ef1d7486af48470370c3ac21f19ef3ee7dde
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that are identified as malicious redirectors, specifically luring users with promises of game hacks. The primary URL, http://netcdn.tw/app/1094591345/pokemon-go-free-mewtwo-hack-game-hack, is directly associated with this redirection. While no scripts were extracted, the document's structure and heuristic firings strongly indicate a phishing or social engineering attack aimed at driving traffic to malicious sites.

Machine Learning

  • Nyx PDF Classifier clean score 0.2223

Heuristics 3

  • 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.
  • 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 http://netcdn.tw/app/1094591345/pokemon-go-free-mewtwo-hack-game-hack In PDF document text
    • http://perpustakaan.dutadharma.ac.id/repository/minecraft-windows-10-edition-free-download_GM479516143.pdfIn PDF document text
    • http://perpustakaan.dutadharma.ac.id/repository/toolbox-for-minecraft-pe-ios_GM479516143.pdfIn PDF document text
    • http://perpustakaan.dutadharma.ac.id/repository/free-robux-game-card-pins-july-3d-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.dutadharma.ac.id/repository/free-robux-and-tix-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://perpustakaan.dutadharma.ac.id/repository/roblox-admin-panel-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.dutadharma.ac.id/repository/how-do-you-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.dutadharma.ac.id/repository/coin-master-hacks-no-verification_GM406889139.pdfIn PDF document text
    • http://perpustakaan.dutadharma.ac.id/repository/tiktok-free-hashtags_GM835599320.pdfIn PDF document text
    • http://perpustakaan.dutadharma.ac.id/repository/oakley-roblox-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.dutadharma.ac.id/repository/how-to-get-gamepass-in-roblox-with-cheat-engine_GM431946152.pdfIn PDF document text
    • http://perpustakaan.dutadharma.ac.id/repository/how-to-hack-roblox-accounts-with-cheat-engine-62-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.dutadharma.ac.id/repository/new-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://perpustakaan.dutadharma.ac.id/repository/roblox-fly-hack-not-a-virus_GM431946152.pdfIn PDF document text
    • http://perpustakaan.dutadharma.ac.id/repository/pubg-uc-uae_GM1330123889.pdfIn PDF document text
    • http://perpustakaan.dutadharma.ac.id/repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.dutadharma.ac.id/repository/roblox-notoriety-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.dutadharma.ac.id/repository/play-minecraft-free-online-no-download_GM479516143.pdfIn PDF document text
    • http://perpustakaan.dutadharma.ac.id/repository/roblox-booga-booga-cheat-duplication_GM431946152.pdfIn PDF document text
    • http://perpustakaan.dutadharma.ac.id/repository/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.dutadharma.ac.id/repository/free-robux-earn_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_023_off00032203.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32203 25576 bytes
SHA-256: 262814870d36886846b71dafc7a69d680b606282b37a7d0c19c45ad3fe7388aa

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