Malicious PDF — malware analysis report

Static analysis result for SHA-256 dad57743dd005d58…

MALICIOUS

PDF

32.5 KB Created: 2021-06-19 16:21:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 1b4889efbec9da2548c39321fa036586 SHA-1: 319678a540f7744737ca87ebf5a7352417ee27f9 SHA-256: dad57743dd005d588258c6383d3b675e6d59def322e6b54d45207f9208b9abcb
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacks and free currency, directing users to a suspicious URL. The ML classifier strongly indicated maliciousness, and the presence of multiple game-related lures suggests a social engineering attempt to trick users into downloading potentially unwanted or malicious software. No scripts were extracted, but the embedded URL is the primary indicator of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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.co/app/431946152/how-to-get-free-faces-on-roblox-2021-game-hack PDF link annotation
    • https://elibrary.ikhac.ac.id/repository/how-can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/coin-master-free-spins-apk_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/master-coin-free-link_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/code-roblox-free-robux_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/roblox-map-hack_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/www-hack-roblox-online_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/cheating-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-follower-bot-roblox_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/how-to-hack-roblox-players-accounts_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/hack-coin-master-apk-31_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/speed-simulator-2-roblox-hack_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/minecraft-ps3-free-download_GM479516143.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/roblox-samurai-simulator-hack_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-robux-come_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/is-roblox-account-hacked_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-minecraft-thumbnails_GM479516143.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002981.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2981 21672 bytes
SHA-256: 57de948e465d676f3a3fd928338279672936360d21a2a23aab4cb7373f35e035
font_01_sfnt_off0000594f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x594F 19320 bytes
SHA-256: 41d893b52fef8c381ed23722f3797ef70040226fa4e7ea3f2a48d29e17f6efc5

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