Malicious PDF — malware analysis report

Static analysis result for SHA-256 38fb2aeccb9a32b9…

MALICIOUS

PDF

48.9 KB Created: 2021-05-12 00:14:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: cfca513f5832ddea95c6ab0268991d91 SHA-1: 5989bfc6cd9132e03d769825d42383f0add4ba20 SHA-256: 38fb2aeccb9a32b975a3bd01e5e830e5ea320db2ff177db5f923122db86c4ab7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure by linking to a website promising game hacks and generators. The primary link, https://netcdn.xyz/app/406889139/free-coin-master-gold-cards-game-hack, is identified as a redirector to potentially malicious content. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or scam attempt, likely intended to lead users to a site that could host further malware or collect credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9228

Heuristics 4

  • 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.
  • 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/406889139/free-coin-master-gold-cards-game-hack PDF link annotation
    • https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/roblox-bloxburg-hack_GM431946152.pdfIn PDF document text
    • https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/where-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/coin-master-heaven-links_GM406889139.pdfIn PDF document text
    • https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/best-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/free-minecraft-addons_GM479516143.pdfIn PDF document text
    • https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/robux-offer-wall_GM431946152.pdfIn PDF document text
    • https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/minecraft-auto-miner-hack_GM479516143.pdfIn PDF document text
    • https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/how-to-get-free-robux-fast_GM431946152.pdfIn PDF document text
    • https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/how-many-levels-in-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/coin-master-hack-app-for-ios_GM406889139.pdfIn PDF document text
    • https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/spin-free-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/avatar-the-last-airbender-roblox_GM431946152.pdfIn PDF document text
    • https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/minecraft-building-hacks_GM479516143.pdfIn PDF document text
    • https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/windows-10-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/coin-master-free-spins-link-download_GM406889139.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
stream_003_off00005048.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5048 32060 bytes
SHA-256: 002c0ed666c30b5f6edc0bcee8622243654b2397019d8580bb3752a5bc4d5508
font_01_sfnt_off000093fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93FB 2872 bytes
SHA-256: 4ec72e81aa0e0899a044795e8683e2fd4acb614786e8f4b11bb8481319db316f
font_02_sfnt_off00009de3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DE3 17960 bytes
SHA-256: 8682528a83dd112d81181b55b0947f4d42ad7746a23a86464d464a09275f8c19

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