Malicious PDF — malware analysis report

Static analysis result for SHA-256 96e5c4a2f47cf012…

MALICIOUS

PDF

34.0 KB Created: 2021-06-24 20:22:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 09699b2e34adfd061deefe1325d6f0e9 SHA-1: 09bcc4bc0e19c2589e0b4f740e1605785b4f8005 SHA-256: 96e5c4a2f47cf012074c59ea3c928d2f9fae202ac4ba16588fd45c425b4df0a9
160 Risk Score

Malware Insights

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

The PDF file contains multiple heuristics indicating it links to malicious redirectors, specifically for game hacks and generators. The embedded URL 'http://netcdn.co/app/479516143/free-private-minecraft-server-game-hack' is flagged as malicious. The document body, though partially corrupted, contains similar URLs and references to game-related content, reinforcing the lure.

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/479516143/free-private-minecraft-server-game-hack In PDF document text
    • https://www.advancissurgical.com/uploads/files/files/freer-pro-tiktok_GM835599320.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/how-to-really-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/free-robux-glitch-2021_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/robux-case-for-free-robux-pastebin_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/proprofs-free-robux_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/cheat-table-roblox_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/coin-master-daily-free-cards_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/minecraft-java-edition-key-free_GM479516143.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/coin-master-hack-android-no-root_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/free-robux-survey_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/roblox-free-login_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/www-free-robux-com_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/free-minecraft-videos_GM479516143.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/daily-free-spins-coin-master-heaven_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/coin-master-gold-cards-hack-2021_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/hack-apk-roblox_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/roblox-join-players-that-arent-freind-hack_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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_off0000318b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x318B 22228 bytes
SHA-256: 7237035a58edbcc6a8723b16085cff46562282b868606ae3621568910beb981c
font_01_sfnt_off0000628e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x628E 18124 bytes
SHA-256: 211e11bb03f7cc83c5e2829b7d2ef769d4fa8cb325cdfd6bec5b2a0daef77f26

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