Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e3c32b9416fdef2…

MALICIOUS

PDF

47.7 KB Created: 2021-05-14 17:34:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 94de3d519f3b3de5d1863e5f05e0e3f9 SHA-1: 99a0cd5f347c59ef1eb29c9857582caf6e2e499c SHA-256: 0e3c32b9416fdef2889af999467d068688a0814e424b05266c4037e212ea98c2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that redirect to known malicious infrastructure, specifically targeting users interested in game hacks and free generators. The heuristic firings confirm the presence of malicious redirector links and a lure related to game hacks. While no scripts were explicitly extracted, the nature of the embedded links suggests an attempt to lead the user to a site that may host further malicious content or exploit kits, likely using JavaScript for obfuscation or redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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-premium-free-game-hack In PDF document text
    • https://elearning.maddikanang.sch.id/__statics/gudangsoal/files/roblox-robux-generator-tool_GM431946152.pdfIn PDF document text
    • https://elearning.maddikanang.sch.id/__statics/gudangsoal/files/jailbreak-roblox-hack_GM431946152.pdfIn PDF document text
    • https://elearning.maddikanang.sch.id/__statics/gudangsoal/files/how-to-download-minecraft-for-free-on-windows-10_GM479516143.pdfIn PDF document text
    • https://elearning.maddikanang.sch.id/__statics/gudangsoal/files/free-coin-link-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.maddikanang.sch.id/__statics/gudangsoal/files/coin-master-apk-hack-mod-download_GM406889139.pdfIn PDF document text
    • https://elearning.maddikanang.sch.id/__statics/gudangsoal/files/daily-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning.maddikanang.sch.id/__statics/gudangsoal/files/coin-master-hack-version-download-2021_GM406889139.pdfIn PDF document text
    • https://elearning.maddikanang.sch.id/__statics/gudangsoal/files/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • https://elearning.maddikanang.sch.id/__statics/gudangsoal/files/free-spins-for-coin-master-app_GM406889139.pdfIn PDF document text
    • https://elearning.maddikanang.sch.id/__statics/gudangsoal/files/coin-master-free-spin-app-iphone_GM406889139.pdfIn PDF document text
    • https://elearning.maddikanang.sch.id/__statics/gudangsoal/files/coin-master-free-download_GM406889139.pdfIn PDF document text
    • https://elearning.maddikanang.sch.id/__statics/gudangsoal/files/boku-no-roblox-hack_GM431946152.pdfIn PDF document text
    • https://elearning.maddikanang.sch.id/__statics/gudangsoal/files/best-free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • https://elearning.maddikanang.sch.id/__statics/gudangsoal/files/coin-master-hack-link_GM406889139.pdfIn PDF document text
    • https://elearning.maddikanang.sch.id/__statics/gudangsoal/files/free-robux-with-no-survey_GM431946152.pdfIn PDF document text
    • https://elearning.maddikanang.sch.id/__statics/gudangsoal/files/coin-master-hacks-2021_GM406889139.pdfIn PDF document text
    • https://elearning.maddikanang.sch.id/__statics/gudangsoal/files/coin-master-free-coin-hack_GM406889139.pdfIn PDF document text
    • https://elearning.maddikanang.sch.id/__statics/gudangsoal/files/free-spins-coin-master-app-iphone_GM406889139.pdfIn PDF document text
    • https://elearning.maddikanang.sch.id/__statics/gudangsoal/files/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://elearning.maddikanang.sch.id/__statics/gudangsoal/files/hack-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • https://www.roblox.comIn 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_off00004db9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4DB9 31604 bytes
SHA-256: b1f79396c620af5acd1c79cfea9e41bad99500daddf11c1323744f0665188e84
font_01_sfnt_off000097cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97CF 18620 bytes
SHA-256: 29b072d58d5b3a55b665a3fffae90f40690866f16f9b518bc51084b043f759b6

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