Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e8ea750847045e9…

MALICIOUS

PDF

32.9 KB Created: 2021-07-06 20:06:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f7cfd1308c0d7010cd60187b8738a4d6 SHA-1: 1f8e00f7a1db3d8e13e3706648b859e39ba6be8b SHA-256: 1e8ea750847045e9876459adf1156221f34b30ed4da42f8d640dc6ab2296345b
180 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link that leads to a lure for free game exploits and hacks. The ML classifier also flagged this PDF as malicious. The document body and embedded URLs suggest a social engineering attempt to trick users into downloading further malicious content, likely related to game cheating or account compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

Heuristics 5

  • 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.
  • Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
    A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
  • 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-roblox-exploits-game-hack In PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/hack-robux-android-fast_GM431946152.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/free-tiktok-comments_GM835599320.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/how-to-get-roblox-premium-for-free_GM431946152.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/how-to-hack-roblox-apk_GM431946152.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/minecraft-build-hacks_GM479516143.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/2-free-pants-roblox_GM431946152.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/how-to-get-free-robux-in-your-roblox-account_GM431946152.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/how-do-you-earn-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/how-to-get-free-stuff-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/roblox-hack-com_GM431946152.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/coin-master-free-spin-link-app_GM406889139.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/free-and-easy-robux_GM431946152.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/coin-master-free-spins-link-quora_GM406889139.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/coin-master-hacks-no-downloading_GM406889139.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/minecraft-free-download-ipad_GM479516143.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/coin-master-hack-ios-12_GM406889139.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/rip-free-roblox-games_GM431946152.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/how-do-i-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://satuoblong.com/ckfinder/userfiles/files/how-to-get-java-minecraft-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

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
font_00_sfnt_off00002a72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A72 22248 bytes
SHA-256: 5b3ea8db96fa4de8bf2d27a0a91b99bf226ca1077b08c9837f692650e3425e67
font_01_sfnt_off00005bd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BD1 19048 bytes
SHA-256: eb81442bbc7cd229a2b7532d5a896b083ca3aa7ccc5f3f0170b3e0789244aa12

Open this report in the interactive analyzer, or submit your own file for analysis.