Malicious PDF — malware analysis report

Static analysis result for SHA-256 7aa41c6301a7e312…

MALICIOUS

PDF

42.4 KB Created: 2021-05-15 01:37:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 943c3cdb0af6526a33ee40db28360a27 SHA-1: 97df8d5a136a56c77e297b2670a43fe94cbe7450 SHA-256: 7aa41c6301a7e312b4a442b65f0c979151ec117a464642fd960468b7b59a39f1
122 Risk Score

Malware Insights

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

This PDF document employs a lure of free game hacks and generators, impersonating brands like Apple to trick users into clicking malicious links. The primary link, https://netcdn.xyz/app/479516143/minecraft-classic-free-game-hack, is designed to lead users to a credential harvesting page. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest an attempt to exploit vulnerabilities or deliver a malicious payload upon user interaction.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.
  • 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.xyz/app/479516143/minecraft-classic-free-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.xyz/app/479516143/minecraft-classic-free-game-hack PDF link annotation
    • https://tckontrola.hr/files/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • https://tckontrola.hr/files/minecraft-pocket-edition-free-download_GM479516143.pdfIn PDF document text
    • https://tckontrola.hr/files/robux-premium_GM431946152.pdfIn PDF document text
    • https://tckontrola.hr/files/free-coin-master-stuff_GM406889139.pdfIn PDF document text
    • https://tckontrola.hr/files/optifine-pe_GM479516143.pdfIn PDF document text
    • http://tckontrola.hr/files/free-robux-meme_GM431946152.pdfIn PDF document text
    • https://tckontrola.hr/files/how-to-get-free-things-on-roblox_GM431946152.pdfIn PDF document text
    • https://tckontrola.hr/files/minecraft-free-minecoins_GM479516143.pdfIn PDF document text
    • http://tckontrola.hr/files/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • https://tckontrola.hr/files/coin-master-free-coins-and-spins-group_GM406889139.pdfIn PDF document text
    • http://tckontrola.hr/files/minecraft-items_GM479516143.pdfIn PDF document text
    • https://tckontrola.hr/files/free-robux-discord-servers_GM431946152.pdfIn PDF document text
    • https://tckontrola.hr/files/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://tckontrola.hr/files/robux-today_GM431946152.pdfIn PDF document text
    • https://tckontrola.hr/files/how-to-exploit-roblox_GM431946152.pdfIn PDF document text
    • https://tckontrola.hr/files/free-minecraft-survival-server_GM479516143.pdfIn PDF document text
    • http://tckontrola.hr/files/free-coin_GM406889139.pdfIn PDF document text
    • http://tckontrola.hr/files/free-robux-no-download_GM431946152.pdfIn PDF document text
    • https://tckontrola.hr/files/free-coin-master-spins-link-download_GM406889139.pdfIn PDF document text
    • https://tckontrola.hr/files/minecraft-java-free-account_GM479516143.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
stream_003_off0000480f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x480F 27528 bytes
SHA-256: f7b6ab8a3b0021802db5af91aa0b5a24366dbaaa16f673ca77d2ccf3d1cc0a97
font_01_sfnt_off00008596.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8596 17644 bytes
SHA-256: 1ee95ff2a7de50dda93d1224861f64f53bfa9b684d20bd49bdd14d4804095e27

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