Malicious PDF — malware analysis report

Static analysis result for SHA-256 52a0c6adf550e34d…

MALICIOUS

PDF

46.9 KB Created: 2021-06-04 03:06:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 0425cc5f08491dde49587777b0200f96 SHA-1: 4ce6c0ad32ce6c74d49cc106e442dc0676907fea SHA-256: 52a0c6adf550e34d0441a911dd3a636e90cccae09c7616b8ad4737bd657420aa
102 Risk Score

Malware Insights

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

The PDF document contains a lure impersonating Microsoft, directing users to a link that promises free game items. This pattern is consistent with credential phishing or malware distribution. The embedded URL, https://netcdn.online/app/479516143/apps-to-get-minecraft-for-free-game-hack, is the primary indicator of malicious intent, likely serving as a gateway to a malicious payload or phishing page.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

Heuristics 5

  • 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/apps-to-get-minecraft-for-free-game-hack.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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/apps-to-get-minecraft-for-free-game-hack PDF link annotation
    • http://digilib.uim.ac.id/repository/how-to-get-minecraft-for-free-on-laptop_GM479516143.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/free-spins-coin-master-2021-app_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/free-roblox-accounts-generator_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/roblox-account-hack-unlimited-robux-apk_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/how-to-get-minecraft-for-free-on-your-phone_GM479516143.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/coin-master-fan_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/bloxpage-free-robux_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/coin-master-70-spin-link-today_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/coin-master-mod-version-free-download_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/free-robux-link_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/free-roblox-account-generator_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/free-coins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/how-can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/coin-master-hack-download-apk_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/coin-master-free-spins-hack-iphone_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000054e3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x54E3 29272 bytes
SHA-256: 340f080441bff63be34458c12ed63cf967130e072f26e46f33cc77bfd5205141
font_01_sfnt_off0000965f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x965F 17884 bytes
SHA-256: 4134fedd636fdbecd148c3695cd5288f8e02410e5797e7f05767ae301205484f

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