Malicious PDF — malware analysis report

Static analysis result for SHA-256 11fe862d25a9e8fc…

MALICIOUS

PDF

36.2 KB Created: 2021-05-21 19:05:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: aeb2bc502a2fc76472880959598401a5 SHA-1: c6a5787d32dad0e8b421c8a6950ca6a3fd927140 SHA-256: 11fe862d25a9e8fc220c8098d75d88ac0755d86b3a26e97e03275223242070eb
82 Risk Score

Malware Insights

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

The PDF contains a "ClickFix" social engineering lure, instructing the user to press Win+R or paste a command, likely to bypass macro restrictions and execute a payload. It also presents a visual download button and embeds multiple URLs, one of which is directly linked to the document's title, suggesting a phishing or malware distribution attempt. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

Heuristics 4

  • 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
  • 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/479516143/was-minecraft-ever-free-game-hack PDF link annotation
    • http://montchanintt.fr/images/how-to-win-attack-madness-in-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://montchanintt.fr/images/coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://montchanintt.fr/images/pokemon-go-free-roam-hack_GM1094591345.pdfIn PDF document text
    • http://montchanintt.fr/images/roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://montchanintt.fr/images/how-to-get-free-premium-roblox_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_002_off000032bf.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32BF 25640 bytes
SHA-256: 2ae6aac434492214ecc9f03e91d1a82d8215c2abbf00d8b5acc92cc8f801615a
font_01_sfnt_off00006d60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D60 17880 bytes
SHA-256: fa9564ce5793f03604dae66ea4261aaef87f9e1e7420b634dd5196a1b51aa919

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