Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea0df08f0a65af72…

MALICIOUS

PDF

34.4 KB Created: 2021-06-29 07:57:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7acdb2f6d24169858df4c49e7b821de9 SHA-1: c8d0dc71720f9926684eb2254c4f3d307684e49a SHA-256: ea0df08f0a65af729f9401f9ab23551b4407c357b46c9a7fc80b640de076acb7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links, including one that redirects to known malicious infrastructure. The document body and heuristics suggest a lure for game-related cheats or generators, likely intended to lead users to a malicious download or exploit. No scripts were extracted, but the presence of malicious links and the lure indicate a phishing or social engineering attack.

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.co/app/431946152/free-promote-group-on-roblox-game-hack In PDF document text
    • https://www.astrospace.com.tw/upload/files/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.astrospace.com.tw/upload/files/cheat-code-roblox-bubble_GM431946152.pdfIn PDF document text
    • https://www.astrospace.com.tw/upload/files/coin-master-hack-spin_GM406889139.pdfIn PDF document text
    • https://www.astrospace.com.tw/upload/files/can-roblox-track-you-if-you-hack-them_GM431946152.pdfIn PDF document text
    • https://www.astrospace.com.tw/upload/files/free-minecraft-account-generator_GM479516143.pdfIn PDF document text
    • https://www.astrospace.com.tw/upload/files/cool-roblox-avatars-free_GM431946152.pdfIn PDF document text
    • https://www.astrospace.com.tw/upload/files/free-robux-generator_GM431946152.pdfIn PDF document text
    • https://www.astrospace.com.tw/upload/files/twitter-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://www.astrospace.com.tw/upload/files/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://www.astrospace.com.tw/upload/files/how-to-get-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://www.astrospace.com.tw/upload/files/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
    • https://www.astrospace.com.tw/upload/files/ricegum-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.astrospace.com.tw/upload/files/hack-coin-pro-coin-master_GM406889139.pdfIn PDF document text
    • https://www.astrospace.com.tw/upload/files/cheat-engine-64-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://www.astrospace.com.tw/upload/files/get-robux-now_GM431946152.pdfIn PDF document text
    • https://www.astrospace.com.tw/upload/files/how-to-use-free-models-in-roblox-studio_GM431946152.pdfIn PDF document text
    • https://www.astrospace.com.tw/upload/files/is-there-any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.astrospace.com.tw/upload/files/mods-for-roblox-free-robux_GM431946152.pdfIn PDF document text
    • https://www.astrospace.com.tw/upload/files/get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://www.astrospace.com.tw/upload/files/coin-master-free-2021_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
font_00_sfnt_off00002ef3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EF3 22088 bytes
SHA-256: 435d1a90d88e5f9053f123ef07d019e266ce0ae0d06a1ce9952ca1a82c0a212f
font_01_sfnt_off00006027.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6027 19484 bytes
SHA-256: d29a755bb87adb575484aee3acea89abebe34db877ce02f566c39f741106568c

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