Malicious PDF — malware analysis report

Static analysis result for SHA-256 890fad5dde141fa5…

MALICIOUS

PDF

45.1 KB Created: 2021-05-19 04:02:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: d5ba58dadeab6847b4f68dba1b69fe0d SHA-1: 9fa812ada037dbbaa170fd05c4510922c70eb0f9 SHA-256: 890fad5dde141fa562bb7eef6a7ee014a130b16f017d29b760638d117c24aa09
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 0.9621

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.xyz/app/406889139/coin-master-hack-software-game-hack PDF link annotation
    • http://lib.mbp.ac.id/repository/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/como-conseguir-monedas-infinitas-y-tiradas-de-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/cm-free-spin-link-today_GM406889139.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/coin-master-free-spins-coins_GM406889139.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/coin-master-spin-link-free-download_GM406889139.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/free-robux-earn_GM431946152.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/roblox-hacked-version-download_GM431946152.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/free-minecraft-mods-for-ps4_GM479516143.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/rbxfree-com-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/minecraft-wurst-client_GM479516143.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/free-minecraft-bedrock-server-hosting_GM479516143.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/coin-master-admin-free-spins_GM406889139.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/free-robux-no-verification-required_GM431946152.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/master-coin-free-spin_GM406889139.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
stream_003_off00004c55.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C55 24680 bytes
SHA-256: 75a05e274ec28bc3e61e7a52092a366b67eecd05b2d0e900cc4da39bf13193e6
font_01_sfnt_off0000842d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x842D 17880 bytes
SHA-256: 544f43ea8445c04f90b32bb89fa74997ce853b2370fee25cb972ddebb18b4158
font_02_sfnt_off0000a517.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA517 3264 bytes
SHA-256: e32c06502c11b52acb5e814091c5fdbffd1e2a904ac7a9cfb8b5b180bd139088

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