Malicious PDF — malware analysis report

Static analysis result for SHA-256 efec152f85acea07…

MALICIOUS

PDF

49.8 KB Created: 2021-06-04 02:32:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: d009d38e7fa0eb96ebb3a6f93fbee066 SHA-1: e9c3f919daa10366686f68c7f8649011ee6a62d9 SHA-256: efec152f85acea070aa9dab691b9f5ea40b360cccba0a220635834dde749cc9e
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF document employs social engineering tactics by impersonating Amazon and offering a "game hack" lure to trick users into clicking a malicious link. The link, hosted on `netcdn.online`, is designed to likely lead to credential phishing or the download of a second-stage payload. The presence of multiple heuristics related to game hacks, brand impersonation, and browser installation lures strongly indicates a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

Heuristics 6

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.online/app/431946152/hack-for-rpg-world-on-roblox-to-get-money-fast-game-hack.
  • 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/431946152/hack-for-rpg-world-on-roblox-to-get-money-fast-game-hack PDF link annotation
    • https://perpustakaan.itda.ac.id/repository/easy-robux-today_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/2021-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-mast-hacks_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-minecraft-server-maker_GM479516143.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/haktuts-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-roblox-adopt-me-pets_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/play-coin-master-online-free_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-minecraft-resource-packs_GM479516143.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-daily-gift-free-spins-and-coins-link-today_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-coins-coin-master-daily_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-free-spinv1-0apkpure-com-apk_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-free-spins-2021-app-download_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coinmaster-twitter_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-dominus-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/cheats-for-coin-master_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/master-coins-free_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/minecraft-free-download-ipad_GM479516143.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_off000054e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54E3 25264 bytes
SHA-256: 776a2da4eae9663feddfdb4137d61e84ff66a9107aea01440f200d122de86736
font_01_sfnt_off00008f48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F48 3608 bytes
SHA-256: 38b270e1156baf55f52eefd6c0272d25f41d6b4ef7b6a9aa3301989c4dacee27
font_02_sfnt_off00009bd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9BD1 19664 bytes
SHA-256: 6ce33591cbd5654b3fcf503d7599940bdf7faea63b19721a92cd5c13ca1cd474

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