Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e471574454a09cb…

MALICIOUS

PDF

45.6 KB Created: 2021-06-04 02:15:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: ddc857a252e6c37b894f04076aa5b863 SHA-1: c8c476a7388443fb9e2887eab4728f789cbc9997 SHA-256: 9e471574454a09cb8a79ca88ab2dd4b8d8a8a42abee0c15948069114e3abc63d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a lure related to free game hacks, directing users to a malicious URL. The ML classifier also flagged this PDF as malicious with high confidence. The primary attack pattern involves social engineering to trick users into visiting a potentially harmful website, likely to download further malware or engage in credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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/479516143/how-do-you-install-minecraft-for-free-game-hack PDF link annotation
    • http://elib-s2.ubl.ac.id/repository/robux-free-c_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/free-robux-link_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/bux-land-free-robux_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/free-robux-no-human-verification-or-survey-or-download_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/can-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/how-to-download-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/free-minecraft-for-kids_GM479516143.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/how-to-get-verified-on-tiktok-for-free_GM835599320.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/free-robux-cards_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/cheats-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/minecraft-iphone-free_GM479516143.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/how-to-hack-into-other-peoples-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/free-minecraft-printables_GM479516143.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_off000056ca.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x56CA 25140 bytes
SHA-256: b992ea6efae0ad72df4750930df97f261ef4d03d9de5a40bc8d2d01b4f538ea2
font_01_sfnt_off00008f80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F80 18416 bytes
SHA-256: cbfa2983e9daac20df1fbb4ff8997c57b22e5209ec416caeaf9e5389c70ab7ce

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