Malicious PDF — malware analysis report

Static analysis result for SHA-256 14cb6e4babde2046…

MALICIOUS

PDF

44.4 KB Created: 2021-06-08 23:27:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 0d1b841f7537a4b5e583b43bda26b619 SHA-1: a17429c4d619c8341781fc94be3a9b94943d437b SHA-256: 14cb6e4babde2046aed2cc7f8cece42dad4b76ac2d7f40c438d2e04afebfd3c0
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 0.9865

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/hacks-in-horrific-housing-roblox-game-hack PDF link annotation
    • http://perpus.ftunismabekasi.ac.id/repository/roblox-hack-game_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/optifine-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/coin-master-free-spins-cheat-deutsch_GM406889139.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/free-robux-pin-codes_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/minecraft-jar-free_GM479516143.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/free-tiktok-hearts_GM835599320.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/how-to-get-free-followers-on-tiktok_GM835599320.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/mcpe-master-hack-coin-apk_GM406889139.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/coin-master-free-coins-and-spins-daily-summary_GM406889139.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/how-do-you-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/coin-master-mod-apk_GM406889139.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/coin-master-hack-programers_GM406889139.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/how-to-get-java-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/make-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/how-to-generate-free-coin-master-spin_GM406889139.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/how-to-get-minecraft-for-free-on-xbox-one_GM479516143.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
stream_004_off00004f9a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F9A 25276 bytes
SHA-256: 3f3eb42f1d38cec1c9c10cce93d5e7ceb1d74995ee8e992033c2ffdd07f67e26
font_01_sfnt_off00008957.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8957 18728 bytes
SHA-256: c4c251b90c7946b72b19d2ee430db83f2d854cabf5d147576fea1f4438f33e35

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