Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c77af01412e4a68…

MALICIOUS

PDF

34.7 KB Created: 2021-06-30 16:58:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 8b9cf21e0f5848d49fa476cd6b967e2c SHA-1: c77001b9d5f89964a68abf4705fb0c0686f6db94 SHA-256: 0c77af01412e4a687b073ebca57ecb0e74a23991f71984c4b59292b46b260afc
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains embedded links that redirect to malicious infrastructure, specifically advertising game cheats and rewards. The ML classifier and redirector link heuristic strongly indicate malicious intent. The document body and embedded URLs suggest a lure for users seeking in-game advantages, likely leading to malware download or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • 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.
  • 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 http://netcdn.co/app/431946152/roblox-cheat-engine-3.0-game-hack In PDF document text
    • http://simon-skov-fougt.dk/billeder/roblox-rewards-site_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/comment-tre-un-hacker-sur-roblox_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/how-to-get-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/roblox-counter-blox-esp-hack_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/minecraft-java-edition-download-free_GM479516143.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/how-to-get-free-roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/free-old-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/coin-master-free-spins-fb-champion_GM406889139.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/robux-hacks-that-acctualuy-work-for-everyone-on-roblox_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/oprewards-com-roblox_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/free-roblox-card_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/free-minecraft-skins-pc_GM479516143.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/can-i-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/free-roblox-com_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_off00003050.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3050 22316 bytes
SHA-256: 9fad819508111ece207622fdbfe16369afbf336a3aed2ea1e84e6359fe48438f
font_01_sfnt_off000061fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61FA 19288 bytes
SHA-256: 2ec1a2ed222954e7ed65672addf1bfdd8addfd361232fca555ecb09c34cc4365

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