Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7a7bbd1a7871f80…

MALICIOUS

PDF

47.9 KB Created: 2021-06-10 21:05:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: ab9ec75ccd0c8302ecaa9e3df7aa25aa SHA-1: 0b963141f54e8c98471baa5c90a9f62e87411f9a SHA-256: e7a7bbd1a7871f809a518eee919b548bfaaf23c7c874494bdc02d17dffa75928
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 0.9796

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.tw/app/431946152/chef-free-t-shirt-roblox-game-hack PDF link annotation
    • https://pustaka.mic.sch.id//repository/coin-master-free-spins-link-download-for-iphone_GM406889139.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/how-to-get-100-robux-for-free_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/how-to-get-free-robux-on-ipad-without-human-verification_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/free-minecraft-java-account_GM479516143.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/cheat-mod-roblox_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/free-robux-no-survey-no-download_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/best-site-for-free-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/roblox-free-robux-points_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/minecraft-svg-free_GM479516143.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/coun-master_GM406889139.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/coin-master-free-spin-link-daily_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005012.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5012 25484 bytes
SHA-256: 1599269af7616222f451568b63044fac8c25974293f59359144fb49dc6666f70
font_01_sfnt_off00008b45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B45 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off00009857.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9857 18372 bytes
SHA-256: c9374930672758a78867318ca938925a26fd650e03da4e4b0f635f49d22f4301

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