Malicious PDF — malware analysis report

Static analysis result for SHA-256 edac0879bf38c340…

MALICIOUS

PDF

43.4 KB Created: 2021-06-04 03:03:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: f74db0222611730e016906db61af5668 SHA-1: 55769db4a2a2373ad1211ede74fc563a891af3fc SHA-256: edac0879bf38c340418f9a1245c5556f75941cd9e64fb138cfaed08b9923a20e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of offering free in-game items and hacks to entice users to click on malicious links. The primary link directs to a site promising 'free spin today coin master game hack'. While no scripts were directly extracted, the PDF structure and embedded links suggest a phishing or malware distribution attempt, likely leading to a second-stage download or exploit. The ML classifier strongly flagged this PDF as malicious.

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.online/app/406889139/free-spin-today-coin-master-game-hack PDF link annotation
    • http://pustaka.bbppketindan.info//repository/roblox-accounts-for-sale-free_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/minecraft-xbox-one-edition-digital-code-free_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-100-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/hack-coin-master-game_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/minecraft-free-download-mobile_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-hack-someone-on-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/how-to-get-free-minecraft-coins_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/minecraft-wurst-hacked-client_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/wurst-hacked-client-112-2_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-spin-link_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/watch-ads-for-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/roblox-data-breach_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/tiktok-free-like_GM835599320.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-mod-version-free-download-ios_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-robux-codes_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-minecraft-bedrock-server-hosting_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-spin-codes-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/new-free-money-links-coin-master_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_004_off00004fed.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4FED 24832 bytes
SHA-256: ac9ccf27bb7033be3f30d33dd60c3d0b56611a24d0f3da15526b25d5695a627f
font_01_sfnt_off0000872e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x872E 18240 bytes
SHA-256: 78c04cb83b3c312ccbbb37a13dd02ec2cfa8937d686ae670a5893e360fd0758d

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