Malicious PDF — malware analysis report

Static analysis result for SHA-256 d01c1f12bb2435fe…

MALICIOUS

PDF

42.3 KB Created: 2021-05-12 13:27:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-23
MD5: 230ca98e73a4f235dfa22974e8eb83e9 SHA-1: 195c72d6ff4c6b932477eda6e10ca3ffceb352f2 SHA-256: d01c1f12bb2435fe85df542b0e4ef9cbe8c5198076b73d55d55a8efbb3d9c99f
120 Risk Score

Malware Insights

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

The PDF file contains embedded links that point to known malicious redirector infrastructure, specifically targeting game hacks and free in-game currency. The ML classifier also flagged this PDF with high confidence. The presence of multiple URLs associated with game cheats and hacks suggests a lure for users to download potentially unwanted or malicious software.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/479516143/wurst-1.15-game-hack In PDF document text
    • http://www.bernerpupping.at/images/coin-master-free-link-app_GM406889139.pdfIn PDF document text
    • http://www.bernerpupping.at/images/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://www.bernerpupping.at/images/roblox-points_GM431946152.pdfIn PDF document text
    • http://www.bernerpupping.at/images/free-coin-master-spins-for-today_GM406889139.pdfIn PDF document text
    • http://www.bernerpupping.at/images/roblox-hack-site_GM431946152.pdfIn PDF document text
    • http://www.bernerpupping.at/images/coin-master-hack-version-2021-free-download_GM406889139.pdfIn PDF document text
    • http://www.bernerpupping.at/images/robux-win_GM431946152.pdfIn PDF document text
    • http://www.bernerpupping.at/images/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.bernerpupping.at/images/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://www.bernerpupping.at/images/coin-master-100-spin-slot_GM406889139.pdfIn PDF document text
    • http://www.bernerpupping.at/images/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://www.bernerpupping.at/images/free-robux-live_GM431946152.pdfIn PDF document text
    • http://www.bernerpupping.at/images/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdfIn PDF document text
    • http://www.bernerpupping.at/images/how-to-get-free-robux-on-phone-2021_GM431946152.pdfIn PDF document text
    • http://www.bernerpupping.at/images/offers-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.bernerpupping.at/images/coin-master-free-gift-links-2021_GM406889139.pdfIn PDF document text
    • http://www.bernerpupping.at/images/free-spins-coin-master-2021-today_GM406889139.pdfIn PDF document text
    • http://www.bernerpupping.at/images/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.bernerpupping.at/images/coin-master-free-spins-link-2021-blogger_GM406889139.pdfIn PDF document text
    • http://www.bernerpupping.at/images/roblox-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
stream_003_off00004944.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4944 26396 bytes
SHA-256: d2699b5dd3c426adb8be0148d1465daa047d2b1ab1960cecab6f910c41e748d0
font_01_sfnt_off00008436.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8436 17864 bytes
SHA-256: b01281eee8ee309b19ac183d03e96fd9339da1edaab490a987cdf3c31f651974

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