Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f60d63e50c9ebeb…

MALICIOUS

PDF

34.2 KB Created: 2021-06-26 08:17:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e856776b776462634d7f4b98194af7ba SHA-1: 84a84ee72dbd56ae334ca9e7886c51bdfe69a8d0 SHA-256: 6f60d63e50c9ebeb97fc4ca8d88871a102b7f6545c37d92513d907c120aab26c
200 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document employs a lure related to game hacks and free currency for popular games like Roblox, impersonating brands to encourage clicks. The embedded links, such as http://netcdn.co/app/431946152/cheat-engine-roblox-tycoon-game-hack, are identified as malicious redirectors. While no scripts were explicitly extracted, the PDF structure and heuristic firings suggest it's designed to exploit users into visiting malicious sites, likely leading to credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: http://netcdn.co/app/431946152/cheat-engine-roblox-tycoon-game-hack.
  • 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/cheat-engine-roblox-tycoon-game-hack In PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/roblox-free-dominus-promo-code-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/robux-free-no-vertifacation_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/how-to-get-free-robux-buzz_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/minecraft-free-download-iphone_GM479516143.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/how-to-hack-robux-with-cheat-engine-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/kuso-icu-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/how-to-get-free-robux-no-pastebin_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/roblox-get-robux-free-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/roblox-account-hack-unlimited-robux-apk_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/hacks-on-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/how-do-you-hack-an-acounte-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/how-do-you-hack-roblox-harford_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/e-free-roblox-meaning_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/free-robux-easy_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/roblox-mad-city-hack-money_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/how-to-get-100-robux-fast-an-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/hacks-para-atravesar-paredes-en-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ft.unismabekasi.ac.id/katalog-buku/repository/roblox-hacks-and-cheats_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
font_00_sfnt_off00003120.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3120 21676 bytes
SHA-256: 84a4f6d2b4ca434aded6b615afa4ad84a76e093eaa3f11e282111dff0a60a506
font_01_sfnt_off0000609a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x609A 19056 bytes
SHA-256: c6e826fe1f4bab158997c81fa4413a0ee1a7554064c332fdbe42266809e92cb6

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