Malicious PDF — malware analysis report

Static analysis result for SHA-256 de02b5df87f150ac…

MALICIOUS

PDF

44.3 KB Created: 2021-05-11 09:02:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 971cba1a9a96303495863d0287cf5ff8 SHA-1: 310c04d626b2258f9344b02e0114ee350a12ad60 SHA-256: de02b5df87f150acdf2c0236896a84a1f7d56f43aa84ff8fb5eec9a9ae5684b6
160 Risk Score

Malware Insights

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

The PDF document contains multiple links to a known malicious redirector infrastructure, disguised as a 'Roblox Hacked Accounts List' and a 'game hack' generator. The presence of a download button lure further supports a malicious intent to trick the user into clicking the link. The document's content and embedded URLs strongly suggest a phishing or scam attempt, likely leading to further malware download or credential harvesting.

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 https://netcdn.xyz/app/431946152/roblox-hacked-accounts-list-game-hack In PDF document text
    • http://perpus.masda.ac.id/repository/free-spins-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/best-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/how-to-get-a-lot-of-robux_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/free-roblox-card_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/roblox-g_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/free-robux-today_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/com-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/app-master_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/roblox-gift-card-free-codes_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/how-can-i-play-minecraft-for-free_GM479516143.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
stream_003_off00004745.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4745 29268 bytes
SHA-256: 01ef54470bf09a7b68b464678075cad9d11661ea36135f74c1866b67e80d5ce2
font_01_sfnt_off00008977.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8977 18720 bytes
SHA-256: fc7b133a6c1dcbd831a87427d92a14fbfb4bbc577a85d8c62e04ee2ff9906700

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