Malicious PDF — malware analysis report

Static analysis result for SHA-256 f15ed77f20437563…

MALICIOUS

PDF

34.4 KB Created: 2021-07-03 12:40:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 563d373682f0cf74ae8cc1e79ca9e5d5 SHA-1: fe5010a269f3d6d83510a2e5f8965124a8555ab4 SHA-256: f15ed77f20437563a54211acfe9450b8079360d3257843e738d5ee12db9b34ab
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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-avatar-ideas-game-hack PDF link annotation
    • https://digilib.stimlog.ac.id/repository/how-to-hack-robux-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/iso-cheat-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/roblox-hacked-accounts-list_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-get-free-robux-inspect_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-install-anti-hack-for-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/get-robux-in-roblox-free_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/coin-master-online-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/free-minecraft-skins-pc_GM479516143.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/how-to-get-free-robux-ant_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-private-roblox-server_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-get-free-robux-no-inspecting-hacks-or-cheats_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/how-to-get-free-pokeballs-in-pokemon-go-2021_GM1094591345.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-right-now_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-counterblox-hack_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/code-for-free-skin-roblox-wild-revolvers_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-hack-bars-2021-pc_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/coin-master-hacks-for-android_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-no-gift-card_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-hack-other-people-roblox-accoubt_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/coin-master-daily-gift-free-spins-and-coins-link-today_GM406889139.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_off00002ec3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EC3 22556 bytes
SHA-256: edcecf02b381721e4b408a029b530e9c749c23526d02917353d19b044f3034f6
font_01_sfnt_off00006135.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6135 19040 bytes
SHA-256: ad2d59536519275d6c005bbb7f6b17868ed93de8c720afdca884edb772968032

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