Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2d32b04edabe23d…

MALICIOUS

PDF

45.1 KB Created: 2021-06-10 20:17:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-16
MD5: 8f20ee7b97ed8c123224752c13632bf0 SHA-1: 9113b71d96d3c3f95f11b4b652a519c7c71a06c5 SHA-256: e2d32b04edabe23d87792e678113ee680f5d92e3c55fc459639cc4749b684b16
200 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks and free generators, directing users to a malicious redirector URL. It also displays a fake CAPTCHA to trick users into interacting with the document. The presence of embedded URLs and the nature of the lure strongly suggest a phishing or scam attempt, likely leading to further malware download or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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
  • 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/free-2021-codes-for-trade-hangout-roblox-game-hack In PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/free-robux-download_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/coin-master-daily-free-spins-link-facebook_GM406889139.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/roblox-getting-hacked_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/roblox-skins-download-free_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/robux-match_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/minecraft-build-hacks_GM479516143.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/minecraft-free-reddit_GM479516143.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/promo-codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/oprewards-com-earn_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/hacks-robux-gratis-rapidos_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/login-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/coin-master-free-spins-link-2021-haktuts_GM406889139.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/robux-generator-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/coin-master-hacks-iphone_GM406889139.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/robux-free-online_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/free-coin-master-spin-app_GM406889139.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/minecraft-java-server-hosting-free_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
font_00_sfnt_off000050d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50D7 25272 bytes
SHA-256: d7d4a2049d3e58dac7ad833807c28b3345f5f91ee3360d6fe5d298ee70372f42
font_01_sfnt_off00008a64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A64 19284 bytes
SHA-256: 5235f840fcb07a3ef52183837b575034ab7aa7fbb9da6f98a236967f89d1e7e7

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