Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa2e404fdde8c0bc…

MALICIOUS

PDF

34.9 KB Created: 2021-07-09 12:20:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: c32700dcea78ad856587b09d2b4c4852 SHA-1: 806c8a31d65a41524e443da2fd1383451e07c60a SHA-256: fa2e404fdde8c0bc01a0d204f2dbc2dd3912f3e74e2d432c270287af3ab538cf
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains multiple embedded URLs and a prominent call-to-action, directing users to sites offering free in-game currency or hacks. The ML classifier strongly flagged this PDF as malicious, and the presence of numerous related URLs suggests a phishing or scam campaign. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a malicious lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • 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 http://netcdn.tw/app/431946152/robux-free-gift-card-game-hack PDF link annotation
    • https://planetzoe.hr/files/how-to-get-free-robux-trur-false_GM431946152.pdfIn PDF document text
    • https://planetzoe.hr/files/how-to-get-a-free-pet-in-roblox_GM431946152.pdfIn PDF document text
    • https://planetzoe.hr/files/how-to-get-free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.planetzoe.hr/files/minecraft-svg-free_GM479516143.pdfIn PDF document text
    • https://www.planetzoe.hr/files/free-robux-android_GM431946152.pdfIn PDF document text
    • https://planetzoe.hr/files/bit-ly-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://www.planetzoe.hr/files/how-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.planetzoe.hr/files/how-to-trade-for-free-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.planetzoe.hr/files/free-robux-scam_GM431946152.pdfIn PDF document text
    • https://planetzoe.hr/files/how-to-get-free-hats-on-roblox_GM431946152.pdfIn PDF document text
    • https://planetzoe.hr/files/roblox-hack-no-human-verification-2021-ios_GM431946152.pdfIn PDF document text
    • https://www.planetzoe.hr/files/is-minecraft-earth-free_GM479516143.pdfIn PDF document text
    • https://planetzoe.hr/files/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • https://planetzoe.hr/files/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • https://planetzoe.hr/files/roblox-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://www.planetzoe.hr/files/roblox-imagine_GM431946152.pdfIn PDF document text
    • https://www.planetzoe.hr/files/hack-coin-master-1_GM406889139.pdfIn PDF document text
    • https://planetzoe.hr/files/download-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://planetzoe.hr/files/robux-cheat-without-human-verification_GM431946152.pdfIn PDF document text
    • https://planetzoe.hr/files/how-to-hack-roblox-accounts-on-phone-2021_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
font_00_sfnt_off00003120.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3120 22396 bytes
SHA-256: 9d39f899679fe7c7566880eb2f8a785194f1d929cd061fc3ab52df282798c379
font_01_sfnt_off000062eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62EB 19112 bytes
SHA-256: 9469897dff8cab28ffda57ea4fb04243aaf5b849cb1d333b453ecf02c9debdd7

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