Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f13d7a42ee9d5d9…

MALICIOUS

PDF

43.3 KB Created: 2021-06-03 11:29:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: e329dc501e9b1130a196c721ba3738e7 SHA-1: 3942dc57cdd125afc28faac3182cba9ea77785f7 SHA-256: 3f13d7a42ee9d5d9316706bff25f71152f0b1d2e43cf76118e9da35f3c785879
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 0.9865

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-spins-on-coin-master-game-game-hack PDF link annotation
    • http://katalog.stikesmukla.ac.id/repository/how-do-i-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/coin-master-pro-hack_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/coin-master-hack-ios-download_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/coin-master-cards-hack-2021_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/how-to-get-free-skins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/how-to-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/free-texture-packs-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/roblox-arsenal-hack-script-pastebin_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/gameoffice-net-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/is-java-minecraft-free_GM479516143.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/hack-coin-master-8-ball-pool_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/the-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/coin-master-free-coins-no-human-verification_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/multiplayer-master-hack-coins_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/mobihack-net-roblox-hack_GM431946152.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_off00004e3f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E3F 24800 bytes
SHA-256: ee51e476b801fc6ad93b3a2716668d179aca1497307c6895a427356e366b26f6
font_01_sfnt_off00008744.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8744 18148 bytes
SHA-256: b1f30c98449655e0c119849c00bf29bb9bd656252beb56b2567f3adea4b6d957

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