Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c22cc3762e95001…

MALICIOUS

PDF

34.0 KB Created: 2021-07-05 16:02:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 91f5181ef71047f09a80418f0cb1b43e SHA-1: b421d4b1b26f6174f69c3633c9a06ef541604172 SHA-256: 6c22cc3762e9500101d175ca9432260131fc727d4038c366713e1566b426ba76
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/coin-master-hack-iosgods-game-hack PDF link annotation
    • https://library.itn.ac.id/perpusitn/repository/free-coin-master-s_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/games-for-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-cheats-deutsch-pc_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/113-hacked-client_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-coins-for-coin-master-blogger_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-creative-mode-free_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-apk-mod-hack-download_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-bux-free_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/pokemon-go-free-shop_GM1094591345.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/robux-cheat-codes-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/robux-free-c_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-minecraft-mods-for-ps4_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-hacked-client-18_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-create-your-own-robux-hack_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hacker-avatar-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-hack-peoples-account-on-roblox-ipad_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/microsoft-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/cheat-for-roblox-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/robux-app_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_off00002f69.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F69 22760 bytes
SHA-256: 1e4caefdac1dfd2cb9c957a1eaed9d1735563df159b2c63463179bb8768d50a8
font_01_sfnt_off00006279.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6279 18180 bytes
SHA-256: 835919d68baf365dee2eb3881849910c3802b6bb08bb8f403bb4b70701c61443

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