Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7c981b717aa2d43…

MALICIOUS

PDF

45.8 KB Created: 2021-05-14 07:04:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-22
MD5: b8cc0ba259eb0d719929d3a62d3a0974 SHA-1: 1436ca1fcc8e2a90f226ce87c62675d5be5b0aa6 SHA-256: a7c981b717aa2d435ba5bfb4289f9342327a716897ae124a2f835fc873c5d57e
140 Risk Score

Malware Insights

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

This PDF document exhibits malicious behavior by linking to known malicious redirector infrastructure, specifically targeting users interested in game hacks like Minecraft. The 'ClickFix' heuristic indicates the document attempts to trick users into executing commands, likely to download and run a secondary payload. The embedded URLs suggest a phishing or scam attempt disguised as a game utility.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

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.
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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/minecraft-1.8-9-hacked-client-game-hack In PDF document text
    • https://mtsn2subang.com/__statics/gudangsoal/files/roblox-booga-booga-hack_GM431946152.pdfIn PDF document text
    • https://mtsn2subang.com/__statics/gudangsoal/files/coin-master-hack-tool-v1-9_GM406889139.pdfIn PDF document text
    • https://mtsn2subang.com/__statics/gudangsoal/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://mtsn2subang.com/__statics/gudangsoal/files/smart-lodhi-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://mtsn2subang.com/__statics/gudangsoal/files/download-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • https://mtsn2subang.com/__statics/gudangsoal/files/free-roblox-printables_GM431946152.pdfIn PDF document text
    • https://mtsn2subang.com/__statics/gudangsoal/files/free-coins-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://mtsn2subang.com/__statics/gudangsoal/files/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • https://mtsn2subang.com/__statics/gudangsoal/files/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • https://mtsn2subang.com/__statics/gudangsoal/files/how-to-get-minecoins-in-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://mtsn2subang.com/__statics/gudangsoal/files/freerubux_GM431946152.pdfIn PDF document text
    • https://mtsn2subang.com/__statics/gudangsoal/files/coin-master-hack-fast-org_GM406889139.pdfIn PDF document text
    • https://mtsn2subang.com/__statics/gudangsoal/files/robux-money_GM431946152.pdfIn PDF document text
    • https://mtsn2subang.com/__statics/gudangsoal/files/free-robux-legit_GM431946152.pdfIn PDF document text
    • https://mtsn2subang.com/__statics/gudangsoal/files/coin-master-free-download_GM406889139.pdfIn PDF document text
    • https://mtsn2subang.com/__statics/gudangsoal/files/free-robux-just-click_GM431946152.pdfIn PDF document text
    • https://mtsn2subang.com/__statics/gudangsoal/files/minecraft-games-free-to-play-online_GM479516143.pdfIn PDF document text
    • https://mtsn2subang.com/__statics/gudangsoal/files/coin-master-hack-blogspot_GM406889139.pdfIn PDF document text
    • https://mtsn2subang.com/__statics/gudangsoal/files/coin-master-spins-hack-2021_GM406889139.pdfIn PDF document text
    • https://mtsn2subang.com/__statics/gudangsoal/files/roblox-generator_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b5f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B5F 25612 bytes
SHA-256: 9fae2360d4d32d0870f075b2754008154fb2243615c9c9e5b226de7ac8b62108
font_01_sfnt_off000085c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85C5 2912 bytes
SHA-256: 02b35010e2614e3cc95ac6414c49295350c91fdfcc4b4cad27ffdbc10e80df7f
font_02_sfnt_off00008fc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FC1 18532 bytes
SHA-256: 397fe146c4cb21b8fa0568cb6b824f44c66529b57f9939d7b0b2fcb40fe95c7f

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