Malicious PDF — malware analysis report

Static analysis result for SHA-256 35d9b566fb6acd37…

MALICIOUS

PDF

34.9 KB Created: 2021-06-28 10:27:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26
MD5: e3ec89abeafebc6bb6058b7b4a1eb03d SHA-1: 08a779a90a425b33068370b210c2866ba8bdd12e SHA-256: 35d9b566fb6acd37078853eb55e4246ee67301337ac3d778efbb491b95d3c989
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, with a primary link pointing to 'netcdn.co', identified as a malicious redirector. The document body and heuristics indicate a lure for game cheats and hacks, specifically mentioning Roblox and Coin Master. This suggests a phishing or scam attempt designed to redirect users to potentially harmful content or further malicious sites.

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/roblox-dragon-ball-z-final-stand-cheats-game-hack In PDF document text
    • https://perpustakaan.stifar.ac.id/repository/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/coin-master-new-cards-hack_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/roblox-hack-with-winrar_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/minecraft-skins-download-free_GM479516143.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/buy-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/roblox-cheat-codes-mega-fun-obby_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/roblox-slient-aim-hack-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/coin-master-free-gifts_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/free-robux-codes-generator-no-verification_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/free-robux-hack-2021-real_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/free-lvl-10-roblox-exploit_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/minecraft-java-free_GM479516143.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/roblox-april-fools-hack_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/how-to-get-free-faces-on-roblox-easy_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/roblox-adopt-me-hacks-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/coin-master-hack-spins-ios_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/roblox-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/coin-master-free-spins-hack-link_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_off00002f16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F16 22732 bytes
SHA-256: 0c96e1eb5ea2239d162dea9f0e2a99fdaf3d2b71c84fd0cfc85d5e1f028d0f92
font_01_sfnt_off0000622c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x622C 19476 bytes
SHA-256: eff1c4d6a14862f9dcea9f92fc1826eb8c7023a73b6895f24d919a04dbd66d35

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