Malicious PDF — malware analysis report

Static analysis result for SHA-256 86a1001bfb808214…

MALICIOUS

PDF

45.8 KB Created: 2021-06-11 08:38:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 083c3acdc61d94048a5c0426f5ef13f6 SHA-1: 7b793c6b8022b5d130342dc9171f2f2940e5eb67 SHA-256: 86a1001bfb808214ed33581107638409c7c617222b000a551effdb84dc92e013
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 0.9864

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 https://netcdn.tw/app/431946152/get-free-robux-quick-and-easy-game-hack PDF link annotation
    • https://pustaka.widyakartika.ac.id/repository/hack-roblox-phone_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/filled-surveys-for-free-robux_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/minecraft-apk-android-free_GM479516143.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/robux-claimer_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/coin-master-new-cards-hack_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/how-to-hack-someone-robloxs-account_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/pokemon-go-free-battle-pass_GM1094591345.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/free-400-spins-coins-master_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/easy-robux-hack_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/free-minecraft-mods_GM479516143.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/how-to-get-free-robux-without-surveys_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/free-robux-scam_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/roblox-hack-game_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/infinite-robux_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/roblox-guess-the-famous-characters-answers-cheat-sheets_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/which-pubg-uc-is-best_GM1330123889.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_004_off00005187.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5187 26356 bytes
SHA-256: 3a56f1d2be6c388cd3495302e6061f8a016d9fb475a79b32108e93c08c61c725
font_01_sfnt_off00008db3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DB3 19148 bytes
SHA-256: 9c6fb3fe6089d8875a1d983995eb12489f697157599824ee9e77b76d426d8257

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