Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5e30dcf19c60a2c…

MALICIOUS

PDF

44.9 KB Created: 2021-06-11 10:44:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 75c7b9b93004e48f8f3ab4507a95904c SHA-1: 247a234d398fd7521dad658cc0e8aa2b4ef36422 SHA-256: e5e30dcf19c60a2cd2cca0e7231b785fc47e5c5d5fbcc8aee933f922719a23a6
160 Risk Score

Malware Insights

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

The PDF contains multiple links to known malicious redirectors, specifically advertising game hacks and generators. The primary lure URL, https://netcdn.tw/app/431946152/hacks-para-roblox-adopt-me-game-hack, is designed to trick users into downloading further malicious content. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest an attempt to exploit user interest in free in-game items to deliver malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.tw/app/431946152/hacks-para-roblox-adopt-me-game-hack In PDF document text
    • http://rushxpress.de/images/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://rushxpress.de/images/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • http://rushxpress.de/images/how-to-get-free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • http://rushxpress.de/images/coin-master-hack-2021-iphone_GM406889139.pdfIn PDF document text
    • http://rushxpress.de/images/toolbox-for-minecraft-ios_GM479516143.pdfIn PDF document text
    • http://rushxpress.de/images/to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://rushxpress.de/images/minecraft-hack-mod_GM479516143.pdfIn PDF document text
    • http://rushxpress.de/images/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://rushxpress.de/images/how-to-setup-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://rushxpress.de/images/free-robux-apk-ios_GM431946152.pdfIn PDF document text
    • http://rushxpress.de/images/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://rushxpress.de/images/how-to-hack-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://rushxpress.de/images/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://rushxpress.de/images/is-roblox-free-on-ps4_GM431946152.pdfIn PDF document text
    • http://rushxpress.de/images/how-to-get-free-robux-as-a-kid_GM431946152.pdfIn PDF document text
    • http://rushxpress.de/images/how-to-play-roblox-online-for-free_GM431946152.pdfIn PDF document text
    • http://rushxpress.de/images/free-spins-for-coin-master-on-1-19-19_GM406889139.pdfIn PDF document text
    • http://rushxpress.de/images/minecraft-hacked-client-bedrock_GM479516143.pdfIn PDF document text
    • http://rushxpress.de/images/coin-master-free-coins-cheat_GM406889139.pdfIn PDF document text
    • http://rushxpress.de/images/roblox-promo-codes-free-robux_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
stream_004_off00005119.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5119 25236 bytes
SHA-256: ae22b676552d8dcc3c297b93a883493bfd3aec797d34c0fe926431b15e3bcac2
font_01_sfnt_off00008ab4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AB4 18984 bytes
SHA-256: c4a4c6bbceb1bf7ccbf78ad68e360c15b462bed0e16201b12c21ad88b6814201

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