Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ae7782248ad3ca1…

MALICIOUS

PDF

34.6 KB Created: 2021-07-04 01:45:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: aa699d07712c66bfc78e5e745c43db49 SHA-1: 8c5950e819621b04b6d19749dfafeb044dc9bd54 SHA-256: 8ae7782248ad3ca125ebec9ac69c2e0ee1bcd80e047360c5d80cdb921f53923e
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/431946152/free-robux-game-hack PDF link annotation
    • http://libnh.stikesnh.ac.id/repository/coin-and-spin_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/coin-master-100-spin-slot_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/inappropriate-roblox_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/how-to-hack-roblox-mobile-android_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/best-forntinte-games-om-roblox-no-robux-free_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/microsoft-robux_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/free-executors-for-roblox_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/minecraft-windows-10-hack-client-2021_GM479516143.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/roblox-free-model-roillercoaster_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/how-to-get-free-robux-ad-2021_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/minecraft-for-macbook-free_GM479516143.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/coin-master-claim-free-spins_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/pubg-uc-ykleme_GM1330123889.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/how-to-hack-coin-master-spin-in-hindi_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/roblox-prison-life-cheat-engine-wall-codes_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/free-robux-mobile_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/free-roblox-groups-with-funds_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/coin-master-free-coins-link-2021_GM406889139.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_002_off0000304f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x304F 22736 bytes
SHA-256: e3a8e01408e2de176a608ce9408ada0a425afbc32005e89d0389343b91ab2492
font_01_sfnt_off00006361.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6361 18716 bytes
SHA-256: ae86725dd70d168e8b5a24377d7effb3bd88f81667aa3e091abc0f5759eb354b

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