Malicious PDF — malware analysis report

Static analysis result for SHA-256 ceb248c5cfff7de8…

MALICIOUS

PDF

35.0 KB Created: 2021-07-09 21:58:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 68b4fad245bdcddd89c2986825f724b5 SHA-1: 61406958fb353515a4e32616b757d274d52fc3ba SHA-256: ceb248c5cfff7de86cfdc4aec3de8fbc6ba139102cf3c0f35b3d75a5c8a64007
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'generators'. The primary redirector URL identified is http://netcdn.tw/app/406889139/coin-master-hack-co-game-hack. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lures strongly suggest a phishing or scamming attempt, likely delivered as a spearphishing attachment.

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/406889139/coin-master-hack-co-game-hack In PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/roblox-ballon-simolator-gem-hack_GM431946152.pdfIn PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/jailbreak-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/coin-master-hacks_GM406889139.pdfIn PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/free-games-coin-master_GM406889139.pdfIn PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/free-premium-roblox_GM431946152.pdfIn PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/how-to-get-free-views-on-tiktok_GM835599320.pdfIn PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/coin-master-heaven-free-spins_GM406889139.pdfIn PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/free-robux-redeem-codes-2021_GM431946152.pdfIn PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/free-hair-on-roblox-promo-code_GM431946152.pdfIn PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/got-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/how-to-get-free-robux-on-roblox-no-download_GM431946152.pdfIn PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/coin-master-hack-tool-pc_GM406889139.pdfIn PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/coin-master-hack-apk-2021_GM406889139.pdfIn PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/free-domain-for-minecraft-server_GM479516143.pdfIn PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/free-robux-group-payouts_GM431946152.pdfIn PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/coin-master-free-spins-blogspot_GM406889139.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_002_off000031c1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31C1 23580 bytes
SHA-256: 0a93cdd4e3ee81174edd1a066cb7a1013bf4921274bcb7fd2636ff82786c78d0
font_01_sfnt_off000066eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66EB 18004 bytes
SHA-256: 2f3a5855c5bac228d8d27cc7f61b57eebad79d58a924e470a0477843dff273c7

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