Malicious PDF — malware analysis report

Static analysis result for SHA-256 e01bef797bc21253…

MALICIOUS

PDF

35.0 KB Created: 2021-06-25 22:46:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 9103482f9e081e52a5e702cf2d147c43 SHA-1: c715685d318f10c587fa71cd88a048df41c7be41 SHA-256: e01bef797bc21253bec7059aca504c544b278552c78009c8a217efa0f8e3af9c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, including one to a known malicious redirector at http://netcdn.co/app/431946152/free-roblox-card-reedem-cod-game-hack, disguised as a 'free generator / game hack'. The document body and heuristics indicate a lure for game-related cheats, which is a common tactic for phishing and malware distribution. No scripts were extracted, but the presence of malicious links suggests the intent is to redirect users to a site that likely hosts further malicious content or exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/free-roblox-card-reedem-cod-game-hack In PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/coin-master-free-link-daily_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/simple-game-hack-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/minecraft-hack-client-download_GM479516143.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/how-to-hack-a-roblox-outfit_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/free-spins-for-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/mcpe-master-coin-hack-apk_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/free4mobile-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/hack-prison-life-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/hackear-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/mcpe-master-hack-unlimited-coins-download_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/minecraft-free-download-windows_GM479516143.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/how-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/google-play-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/how-to-get-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/reddit-roblox-money-hacks_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/free-spins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/robux-apk_GM431946152.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
font_00_sfnt_off00003213.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3213 22288 bytes
SHA-256: 524bf3cf11eea2473945faa67438d0ce76fd5e83dc8c8a1c291c8b38ca7c22fe
font_01_sfnt_off00006391.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6391 19084 bytes
SHA-256: e8c9e2a71845bfacf2f9e0da122a598ba9bf83f7b0d6c0f6719e532306382fd8

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