Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b4bfb32756deadb…

MALICIOUS

PDF

40.3 KB Created: 2021-05-23 06:09:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: d956d13fd5e97a17bde769dd346d9961 SHA-1: b2834989b26fd254b9a92c8140ab5603334c4a26 SHA-256: 0b4bfb32756deadb0ed58c169e61fbeb2a570744c0e798c6556cf35b5078d838
82 Risk Score

Malware Insights

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

The PDF document contains social engineering lures, specifically a 'ClickFix' style attack, instructing the user to click a link or run a command. The document body and embedded URLs promote a fake generator for game items, aiming to trick users into visiting malicious websites. The presence of multiple suspicious URLs suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7776

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/is-minecraft-bedrock-edition-free-game-hack PDF link annotation
    • https://www.hearcolors.com.mx/img/blog/files/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/coin-master-free-pet-food_GM406889139.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/get-free-robux-info_GM431946152.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/coin-master-hack-blog_GM406889139.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/free-coins-on-coin-master-generator_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003780.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3780 25756 bytes
SHA-256: ac449695535778a9f65a2e2c02a666bc9fca9afd2f29d40abbc34662a3e6626c
font_01_sfnt_off0000728c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x728C 2820 bytes
SHA-256: 972979c3a46100cf5f8fd289bc6fbd2496ff75fec0e3f6753648c72ec6eba714
font_02_sfnt_off00007c2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C2B 18268 bytes
SHA-256: c81a05c902e5b7336ce3afe221fe42e1a1247b419ae57a3dec90c8cc8a9629c1

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