Malicious PDF — malware analysis report

Static analysis result for SHA-256 1093d3e7ddb27f80…

MALICIOUS

PDF

39.3 KB Created: 2021-05-23 00:47:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 0c9a8d7e3bfbc4e9f370517980146393 SHA-1: ec4c327ce88d9fd9f0d5fbe49f55a5393de78401 SHA-256: 1093d3e7ddb27f80fc9e9c788f5ad4164628eac22ec809a0cd09f6eda7d657a8
82 Risk Score

Malware Insights

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

The PDF contains embedded URLs and a document body that mimics a game download lure, specifically mentioning 'Minecraft Java Edition Free'. The 'SE_CLICKFIX' heuristic indicates the document instructs the user to execute commands, a common social engineering tactic to bypass security measures. The presence of multiple suspicious URLs suggests an attempt to redirect the user to malicious content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

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/minecraft-java-edition-free-game-hack PDF link annotation
    • https://letturatarghe.it/images/coin-master-free-spins-link-ios_GM406889139.pdfIn PDF document text
    • https://letturatarghe.it/images/free-robux-earn_GM431946152.pdfIn PDF document text
    • https://letturatarghe.it/images/free-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • https://letturatarghe.it/images/play-minecraft-online-free_GM479516143.pdfIn PDF document text
    • https://letturatarghe.it/images/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://freegiftcodes.euIn 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_002_off0000338a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x338A 25748 bytes
SHA-256: 6c2e1d79f5850375b861a243a4eb33df671f7525d97f04603953ef0513eec61a
font_01_sfnt_off00006e8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E8D 2840 bytes
SHA-256: 787e0768241fb57660bcc9c7f726cf687277c463cdf8c586c4782ee9d03c3606
font_02_sfnt_off0000784c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x784C 18164 bytes
SHA-256: e28d0ded599416f75746d42b4ddd49ac4ed584cd54835945167b34c6d366202b

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