Malicious PDF — malware analysis report

Static analysis result for SHA-256 12354142b2df007c…

MALICIOUS

PDF

46.8 KB Created: 2021-05-19 05:22:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 490908ce660cfe4d0663d445902c1bd7 SHA-1: c85f35296d33e86a64dee739f3059a06d7de5ce0 SHA-256: 12354142b2df007c63feb2f189ea2b4fd932bfec445e595f25470d22162df6ba
82 Risk Score

Malware Insights

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

This PDF document impersonates a gaming brand to lure users into clicking a malicious link, likely for credential phishing or to download a second-stage payload. The embedded link `https://netcdn.xyz/app/1330123889/pubg-uc-midasbuy-pakistan-game-hack` and numerous other related URLs suggest a campaign focused on in-game currency scams. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

Heuristics 4

  • 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/1330123889/pubg-uc-midasbuy-pakistan-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/1330123889/pubg-uc-midasbuy-pakistan-game-hack PDF link annotation
    • https://treeconsult.de/images/lots-of-robux_GM431946152.pdfIn PDF document text
    • https://treeconsult.de/images/coin-master-free-spain_GM406889139.pdfIn PDF document text
    • https://treeconsult.de/images/minecraft-cheats-switch_GM479516143.pdfIn PDF document text
    • https://treeconsult.de/images/coinmaster-gps-user-review-coinmaster-coin-master-hack-pagedemo-index_GM406889139.pdfIn PDF document text
    • https://treeconsult.de/images/how-to-get-free-minecraft-windows-10_GM479516143.pdfIn PDF document text
    • https://treeconsult.de/images/gaming-dunia-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://treeconsult.de/images/coin-master-hack-apk-35-33_GM406889139.pdfIn PDF document text
    • https://treeconsult.de/images/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://treeconsult.de/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://treeconsult.de/images/get-me-robux-for-free_GM431946152.pdfIn PDF document text
    • https://treeconsult.de/images/coin-master-sound-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://treeconsult.de/images/coin-master-free-spins-bit-ly_GM406889139.pdfIn PDF document text
    • https://treeconsult.de/images/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • https://treeconsult.de/images/robux-app_GM431946152.pdfIn PDF document text
    • https://treeconsult.de/images/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • https://treeconsult.de/images/facebook-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://treeconsult.de/images/how-to-get-free-robux-youtube_GM431946152.pdfIn PDF document text
    • https://treeconsult.de/images/play-minecraft-online-free_GM479516143.pdfIn PDF document text
    • https://treeconsult.de/images/instagram-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://treeconsult.de/images/how-to-hack-coin-master-cheat-engine_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_off000046ac.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x46AC 29692 bytes
SHA-256: 65a1d3c022ebb16b9a1cd9fda27beae160a26e845c8f4d8421996b7fc06edcaf
font_01_sfnt_off00008833.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8833 2824 bytes
SHA-256: 94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
font_02_sfnt_off000091e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91E2 19068 bytes
SHA-256: 44151b5e805aa923642575b3cec21bfac9b0c64da4b1cf11a6dd9972e15c01fe

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