Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e492c6614bb6282…

MALICIOUS

PDF

43.3 KB Created: 2021-05-14 20:34:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 21b10a0e4a091e8e2ef60fa2890d216b SHA-1: 527d0b452872a0baa623fe1ba6e46aae3464d51e SHA-256: 1e492c6614bb6282429e0f1826c34fcd6ff620031890ce0aa1b3e3536b6e0824
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF document contains numerous links to external resources, including a primary link to 'netcdn.xyz' which is flagged as a lure for game hacks. The document also displays a fake CAPTCHA, a common social engineering tactic to trick users into executing malicious content or visiting further compromised sites. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect users to malicious sites, potentially for credential harvesting or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 5

  • 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.
  • 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
  • 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.xyz/app/431946152/avatar-roblox-game-game-hack PDF link annotation
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/pixies-gigantic-coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/get-free-robux-info_GM431946152.pdfIn PDF document text
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/windows-10-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/how-do-you-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/all-free-items-in-roblox_GM431946152.pdfIn PDF document text
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/coin-master-400-spin-link-hack_GM406889139.pdfIn PDF document text
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/hack-coin-master-with-lucky-patcher_GM406889139.pdfIn PDF document text
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/give-me-robux-now_GM431946152.pdfIn PDF document text
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/minecraft-name-tag-hacks_GM479516143.pdfIn PDF document text
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/coin-master-free-cards-and-spin-link_GM406889139.pdfIn PDF document text
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/roblox-sued_GM431946152.pdfIn PDF document text
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/minecraft-bedrock-server-hosting-free_GM479516143.pdfIn PDF document text
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/free-robux-kid-friendly_GM431946152.pdfIn PDF document text
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/free-roblox-toy-codes-2021_GM431946152.pdfIn PDF document text
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/httpswwwurcouponsdealcom202103coinmasterfreespinandcoinlinkshtml_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004c20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C20 25100 bytes
SHA-256: b4dae2c9d072147c50a17dfac602988e15e0d226befdfbb9c0032fca4c8d73cc
font_01_sfnt_off00008636.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8636 18492 bytes
SHA-256: 6f25c8042a3cd2790e062f52c9c9b29641286f32198afb86083f56b8b0f15126

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