Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fd72d7401e0686d…

MALICIOUS

PDF

41.0 KB Created: 2021-05-11 15:20:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: c569589122f6255b6809d617621fddff SHA-1: 2541f67e037d6e08b7e82fc8a17a9baa74d6fd06 SHA-256: 5fd72d7401e0686d409f550d494123eb20aeaf98cd0c81a68a6af9cc4a4e68d4
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and text that advertise hacks and free in-game currency for popular games like Coin Master and Roblox. The presence of multiple URLs pointing to an IP address and a suspicious domain suggests an attempt to redirect users to download malicious content. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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/406889139/coin-master-hack-game-game-hack PDF link annotation
    • http://118.174.0.244/UserFiles/File/100-free-spins-coin-master_GM406889139.pdfPDF link annotation
    • http://118.174.0.244/UserFiles/File/coin-master-spin-rewards_GM406889139.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/free-robux-legit_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/free-roblox-com_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/getrobux-info_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/free-robux-with-no-survey_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/hacked-roblox-game_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/unlimited-spin-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/roblox-generator_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/no-scam-free-robux_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/minecraft-dungeons-free-download-pc_GM479516143.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/free-robux-giveaway-live_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/how-to-make-free-robux_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/wwwcoin-master-free-spincom_GM406889139.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/roblox-april-fools-hack_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/www-bandicam-com-free-robux_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_off0000490a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x490A 23776 bytes
SHA-256: e409f6cf869ee9227d9d7a2bc64f9b9265c3926592c8ea925cd97b13bd9a3b1f
font_01_sfnt_off00007eac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EAC 17976 bytes
SHA-256: a10cba9c8785de960fed0da4a3eab1918984567c97134b904b56a350c269fc22

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