Malicious PDF — malware analysis report

Static analysis result for SHA-256 52267367e8bdc69e…

MALICIOUS

PDF

44.5 KB Created: 2021-06-13 15:03:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: d79d895977977526b8ab4ec4cb492084 SHA-1: 286c74ebca6e185a1cc45c502a5569d1dbdb530e SHA-256: 52267367e8bdc69e6c7603f1c2916e00c5434d33d3f5147ff7c2526070fc20f3
62 Risk Score

Malware Insights

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

The PDF document contains multiple embedded URLs and a visual download lure, strongly suggesting a phishing or malware distribution attempt. The document body and extracted URLs point towards lures for game-related cheats and hacks, indicating a likely attempt to trick users into downloading malicious software. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.co/app/431946152/roblox-broken-bones-4-cheat-engine-game-hack PDF link annotation
    • http://io24.com.ar/images/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/minecraft-free-exe_GM479516143.pdfIn PDF document text
    • http://io24.com.ar/images/freespins-coin-master_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/easy-robux-today-com_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/roblox-hack-exploit-project-pokemon-site-youtubecom_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/hacks-master-coin_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/how-to-hack-roblox-account-on-phone_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/free-robux-legit-2021_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/free-toys-codes-roblox-2021_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/apk-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/coin-master-daily-free-coins-link_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/master-coin-free-link_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/free-robux-videos_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/roblox-conquerors-3-cheat_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/roblox-lumber-tycoon-2-money-cheat_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_off00004f7e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F7E 25116 bytes
SHA-256: 20d121f22c3d2eb9e9373b65f4588d73e32ad084795d82013c27964c5ee14732
font_01_sfnt_off00008960.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8960 18920 bytes
SHA-256: 121b0c91d168294d3721d3846abb7d2f692936e7f7ba28780835b6dc4f599569

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