Malicious PDF — malware analysis report

Static analysis result for SHA-256 31c4362f807ad64b…

MALICIOUS

PDF

42.4 KB Created: 2021-05-14 16:39:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 6f4ced155eca328628e3a7c92203e06c SHA-1: ed06e1a0c71823d72c9386234e07f67c4ccf4e87 SHA-256: 31c4362f807ad64b57932122df85c92f3fb59761be48f1658471c2fa9de28a9b
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by an ML classifier. It uses a password-protected-archive lure. 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 0.9971

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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-free-download-windows-10-game-hack PDF link annotation
    • http://palogar.es/images/how-to-hack-any-roblox-account_GM431946152.pdfIn PDF document text
    • http://palogar.es/images/free-robux-picture_GM431946152.pdfIn PDF document text
    • http://palogar.es/images/minecraft-xbox-one-edition-digital-code-free_GM479516143.pdfIn PDF document text
    • http://palogar.es/images/coin-game_GM406889139.pdfIn PDF document text
    • http://palogar.es/images/earn-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • http://palogar.es/images/minecraft-hacks-list_GM479516143.pdfIn PDF document text
    • http://palogar.es/images/best-site-for-free-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://palogar.es/images/minecraft-bedrock-server-hosting-free_GM479516143.pdfIn PDF document text
    • http://palogar.es/images/free-roblox-gift-card_GM431946152.pdfIn PDF document text
    • http://palogar.es/images/moonactive-free-spins_GM406889139.pdfIn PDF document text
    • http://palogar.es/images/free-coin-master-spin-app_GM406889139.pdfIn PDF document text
    • http://palogar.es/images/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://palogar.es/images/minecraft-wurst-hacked-client_GM479516143.pdfIn PDF document text
    • http://palogar.es/images/coin-master-hack-cheat-generator-coins-and-spins-unlimited_GM406889139.pdfIn PDF document text
    • http://palogar.es/images/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • http://palogar.es/images/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://palogar.es/images/worst-client_GM479516143.pdfIn PDF document text
    • http://palogar.es/images/coin-monster_GM406889139.pdfIn PDF document text
    • http://palogar.es/images/how-to-get-coin-master-card-free_GM406889139.pdfIn PDF document text
    • http://palogar.es/images/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • https://www.youtIn 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_off00004907.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4907 24952 bytes
SHA-256: bc20a04ac69ad022d3571da2e9799ccc7fb8694adc2ccd3e9995830bbb446f49
font_01_sfnt_off000081c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81C1 18764 bytes
SHA-256: 1024eac42dda9887ab3e6b3a3052baf0f02eb021d29d3096c75228bb34fedc86

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