Malicious PDF — malware analysis report

Static analysis result for SHA-256 63800458dcae8001…

MALICIOUS

PDF

42.2 KB Created: 2021-05-22 06:41:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: bea77dd427bcb353a018794b39a999e8 SHA-1: 4ba634d6b43edbe1133af863e97c582e3ee87109 SHA-256: 63800458dcae8001fdf92acbc6029d43cbc882f614ff94115f7c957a60039e17
82 Risk Score

Malware Insights

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

The PDF document displays a fake CAPTCHA or human verification prompt to trick the user into clicking a link. The document body contains multiple URLs, including one that appears to be the primary lure for hacking Roblox accounts. The presence of these elements strongly suggests a social engineering attack aimed at delivering a payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7429

Heuristics 4

  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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/431946152/how-to-hack-roblox-accounts-2021-easy-game-hack PDF link annotation
    • http://reggieslockandkey.com/images/roblox-rape-hack_GM431946152.pdfIn PDF document text
    • http://reggieslockandkey.com/images/coin-master-hack-spins_GM406889139.pdfIn PDF document text
    • http://reggieslockandkey.com/images/play-coin-master-online-free_GM406889139.pdfIn PDF document text
    • http://reggieslockandkey.com/images/roblox-install-free_GM431946152.pdfIn PDF document text
    • http://reggieslockandkey.com/images/roblox-generator_GM431946152.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_off000031fd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31FD 27244 bytes
SHA-256: acccc870bc3f5b1e7c249129a9b9dc702d3bc7693c495ab2a3089bd5a9efff78
font_01_sfnt_off000070b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70B7 6636 bytes
SHA-256: 62075f0fe13502d46afb6e55e83d440c29ef4988399537df1f86e7653ce3b744
font_02_sfnt_off000080c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80C3 19172 bytes
SHA-256: 0a4c192dd0d49b475d670e2028b2e3d9bc88486e58824ff416e2d46c0acce708

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