Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b0389dd9971915f…

MALICIOUS

PDF

44.4 KB Created: 2021-06-03 08:02:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0037bd592ff058bca2cc6f120a1a17fa SHA-1: b563d932f2e15c05f07672bba428dc2532098a15 SHA-256: 0b0389dd9971915f648c41890709a49064d9a9bd6d9b351d0acba9c827598bd7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure, presenting itself as a 'free generator' or 'game hack' to entice users into clicking a link. The embedded link, 'https://netcdn.online/app/431946152/free-robux-no-offers-game-hack', is identified as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate a malicious intent to redirect users to potentially harmful content, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/431946152/free-robux-no-offers-game-hack In PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/if-you-delete-minecraft-can-you-redownload-it-for-free_GM479516143.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/coin-master-hacked-apk-download-for-android_GM406889139.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/robux-withdraw_GM431946152.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/free-spins-coin-master-2021-today_GM406889139.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/can-you-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/free-robux-no-email_GM431946152.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/daily-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/roblox-speed-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/roblox-hack-game_GM431946152.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/coin-master-codes_GM406889139.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/minecraft-bedrock-edition-pc-download-free_GM479516143.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/free-roblox-hair-codes_GM431946152.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/robux-hack-me_GM431946152.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/fbchampion-com_GM406889139.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/haktuts-coin-master-free-spin-link_GM406889139.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
stream_004_off000050bd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50BD 25280 bytes
SHA-256: 762d9d6404681c9b0080d17fb469bd6b6f88ad8456a068088d0fe5d9d0e05e83
font_01_sfnt_off00008bb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BB6 18012 bytes
SHA-256: db6be32425767485114cb9000642ed63280f0807e0fe45793765b8e181fce2c0

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