Malicious PDF — malware analysis report

Static analysis result for SHA-256 493ade33d927e041…

MALICIOUS

PDF

49.0 KB Created: 2021-06-03 09:15:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: c4630c4121460e9908a47ff849e72786 SHA-1: 232a19263b5330f76c187a63ee28565bb319f5ba SHA-256: 493ade33d927e041ddc3001caf5bbda494442ea3ca4c915db68f75f94fbbf6ec
122 Risk Score

Malware Insights

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

The PDF contains a lure related to 'free Minecraft Java Edition redeem code' and impersonates Microsoft, directing users to a suspicious URL. This pattern is indicative of credential phishing or a download lure. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to exploit users through social engineering.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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.online/app/479516143/minecraft-java-edition-redeem-code-free-2021-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/479516143/minecraft-java-edition-redeem-code-free-2021-game-hack PDF link annotation
    • https://www.labdagatismk1pundong.com/repository/coin-master-deals_GM406889139.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/free-robux-live_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/40-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/free-magical-chest-coin-master_GM406889139.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/who-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/coin-master-hack-apk-download-for-android_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/minecraft-pe-016-0-apk-download-free_GM479516143.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/coin-master-free-gifts_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/freer-tiktok_GM835599320.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/pubg-uc-with-easypaisa_GM1330123889.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/coin-master-daily-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/minecraft-life-hacks_GM479516143.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/coin-master-hack-2021-apk-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_004_off00005312.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5312 27992 bytes
SHA-256: e0f4d862be7efbadfd9de2ee1258d8f9cc2e86cb06537e546290e9396d6e2486
font_01_sfnt_off000090f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90F9 2940 bytes
SHA-256: ae8acc7f13e86db3aed98d7dfb73e70e16f4dedb45e9f0467460b76f54e1a1bb
font_02_sfnt_off00009b08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B08 18824 bytes
SHA-256: 3e84327372ede1fb0dd75240746e2dc46639f78069d280fe972667d8e0b4261e

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