Malicious PDF — malware analysis report

Static analysis result for SHA-256 95521bd297b5fbd8…

MALICIOUS

PDF

34.6 KB Created: 2021-07-05 20:52:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: e346612c9368c32cd90d2c5422b5407f SHA-1: f210ba26ad50697d7f0e7b8bc3437c908d627ea3 SHA-256: 95521bd297b5fbd8e804b65fd9b9e84c5d9b54f7ab51e8488f6c74be369c998a
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/406889139/free-money-links-coin-master-game-hack PDF link annotation
    • http://lib.smklabor.sch.id/repository/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/minecraft-dungeons-download-free_GM479516143.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/tiktok-free-tv-shows_GM835599320.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/what-to-do-if-my-roblox-account-gets-hacked_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/coin-master-mod-free-download_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-robu-roblox_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-robux-gen_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-robux-gift-cards-live-now_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-robux-group_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/comment-hacker-une-page-roblox_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/coin-master-claim-free-spins_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/minecraft-net-free_GM479516143.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-bedrock-minecraft_GM479516143.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/roblox-jailbreak-volt-bike-free-other-game_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/minecraft-hacked-client-bedrock_GM479516143.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/roblox-free-clothes-generator_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/ban-hack-roblox_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/roblox-pet-simulator-how-to-get-a-free-rainbow-dominus_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
stream_002_off000030f3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x30F3 22976 bytes
SHA-256: 32a19b94e68cc1cf73db5f65a66723a63d50adb8be5dc240a2e1c473c23292d0
font_01_sfnt_off00006483.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6483 18348 bytes
SHA-256: d1e3fa9b345845750c3361cd5ba2c4bb407e1fff22b4faa08696458df1a8669f

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