Malicious PDF — malware analysis report

Static analysis result for SHA-256 0215062b84327eb2…

MALICIOUS

PDF

34.7 KB Created: 2021-07-04 22:30:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2fb89c0b567ef2c05173dda02f5aa495 SHA-1: edd7f181a933d54d66b91f360844b48af5969d13 SHA-256: 0215062b84327eb2eaee13c09b5d3ad2124228ccf68b839b62fa0f019a828ad6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to a known malicious redirector infrastructure at http://netcdn.tw/app/431946152/free-robux-scams-game-hack. The document body and embedded links suggest a lure for free Robux or game hacks, a common social engineering tactic. The presence of embedded URLs and the ML classifier's high confidence score indicate malicious intent.

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.tw/app/431946152/free-robux-scams-game-hack In PDF document text
    • https://lib.btkljogja.or.id/repository/roblox-free-admin-house_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/how-to-get-free-robux-without-verifying-2021_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/hire-a-hacker-for-roblox_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/how-to-free-robux-in-roblox-2021_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/how-to-hack-on-roblox-plates-of-fate_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-20-robux_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-roblox-accounts-2021-wiki_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-jailbreak-roblox-money_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/minecraft-skins-download-free_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/dms-cheats-roblox_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/roblox-robux-hack-v1-34-download_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-free-spins-2-5-2021_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/pastebin-roblox-free-obc_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-lua-roblox-exploit_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/how-to-get-free-robux-with-cheat-engine-64_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/fly-hack-dll-exploit-roblox_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-hack-2021-download_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/roblox-headphones-free_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_off00002fde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FDE 22716 bytes
SHA-256: e327690bc6f35a2d9e522b5c02a0bd5db986a85812c579609bde80a640298ad7
font_01_sfnt_off000062d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62D0 18976 bytes
SHA-256: 48eef6298bef607355aca425a8072928fe0e0a0bc0ee660e64f251d9c93ff6b2

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