Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cec590909593864…

MALICIOUS

PDF

37.1 KB Created: 2021-07-05 10:26:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: be205757f3e922f38e49555f360cb243 SHA-1: 121abf53147aaa8ae17923b5b3b2a17df7e6f9e8 SHA-256: 7cec5909095938643f9db26a07d9ca45955b4e2a392ccafe41aaed4d462924d5
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 0.9886

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-free-spins-link-game-hack PDF link annotation
    • http://perpus.unpam.ac.id/repository/2021-unpatchable-how-to-noclip-hack-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/robux-free-c_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/free-robux-co_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/free-coins-2021-coin-master-link_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/free-roblox-premium_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/free-800-robux_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/como-distruir-juegos-en-roblox-sin-hack_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/how-to-hack-a-game-server-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/pubg-uc-ycom_GM1330123889.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/how-to-be-able-to-open-cheat-engine-in-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/coin-master-hack-dot-xyz_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/download-phantom-forces-roblox-aimbot-hack-script-2021_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/robux-get-com_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/coin-master-free-spins-coins_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/minecraft-free-download-apk-softonic_GM479516143.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/roblox-wall-hack-2021_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/haktuts-free-spins_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31EB 22508 bytes
SHA-256: 0c2a0d5370173d9f185712dd58e4ee05aff2d2112b2556193da329c4eb3c23da
font_01_sfnt_off000063f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63F5 2896 bytes
SHA-256: c1a618813a64314343402b2ec738fc11c4c912460a4c7ae3029924d2f9a229cd
font_02_sfnt_off00006dda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DDA 18344 bytes
SHA-256: 01b831504896dfaed35d51ec646485350627a831fcdd06f8660974e1004fbd35

Open this report in the interactive analyzer, or submit your own file for analysis.