Malicious PDF — malware analysis report

Static analysis result for SHA-256 47f46625d1bdd8f3…

MALICIOUS

PDF

32.8 KB Created: 2021-06-26 00:52:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 2a7ef34acd9484747ba379956b7d27df SHA-1: ad23bd573698d63f595be80a7d5f7952c32bf46e SHA-256: 47f46625d1bdd8f3e9fa2fb46334ad73008d804b563b6d945cc607058549bc3d
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 0.9824

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/free-catalog-roblox-pastebin-game-hack PDF link annotation
    • http://www.elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/roblox-free-play_GM431946152.pdfIn PDF document text
    • http://www.elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/roblox-adopt-me-free-unicorn_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/free-robux-accounts_GM431946152.pdfIn PDF document text
    • http://www.elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/coin-master-hack-tool-v1-9-download-free-pc_GM406889139.pdfIn PDF document text
    • http://www.elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-on-pc_GM431946152.pdfIn PDF document text
    • http://www.elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/coin-master-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://www.elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-iphone-2021_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/fe-hacks-roblox-free_GM431946152.pdfIn PDF document text
    • http://www.elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/view-cam-hack-roblox_GM431946152.pdfIn PDF document text
    • http://www.elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/how-to-gain-more-spins-on-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://www.elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/tiktok-free-online-videos_GM835599320.pdfIn PDF document text
    • http://www.elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://www.elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://www.elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/oprewards-points-generator_GM431946152.pdfIn PDF document text
    • http://www.elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • http://www.elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-coins-group_GM406889139.pdfIn PDF document text
    • http://www.elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://www.elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://www.elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/free-coins-coin-master-spins_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
font_00_sfnt_off00002c3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C3A 21540 bytes
SHA-256: 4ec0b5a1b60e66c6623bd2debb2f675b262a92f6ce46eaf73a3fb9f937ac9330
font_01_sfnt_off00005ba7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BA7 19028 bytes
SHA-256: d717f66929fa49f4f5465f58b64077024028894cd4bfbde2df4ad1125e88661b

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