Malicious PDF — malware analysis report

Static analysis result for SHA-256 c04f9685f1f37cef…

MALICIOUS

PDF

33.0 KB Created: 2021-07-19 09:06:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: be427ebcd90ee6ac253a71a9785076c5 SHA-1: 062c9517c0a8ea0039227a7573efb8464d16e5c9 SHA-256: c04f9685f1f37cefc70491e4dd565f9b0bbddab1c49ca3691de18f36c6b33179
62 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 attempts to lure the user into downloading a game hack. The ML classifier strongly flagged this PDF as malicious, and the presence of multiple suspicious URLs reinforces the likelihood of a malicious download attempt. The document body's content, combined with the 'SE_DOWNLOAD_BUTTON' heuristic, indicates a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

Heuristics 4

  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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 http://netcdn.tw/app/479516143/minecraft-java-edition-free-trial-game-hack PDF link annotation
    • https://porownaj-laser.pl/images/how-to-hack-roblox-accounts-on-phone_GM431946152.pdfIn PDF document text
    • https://porownaj-laser.pl/images/minecraft-classic-free_GM479516143.pdfIn PDF document text
    • https://porownaj-laser.pl/images/free-minecraft-games-for-kids_GM479516143.pdfIn PDF document text
    • https://porownaj-laser.pl/images/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • https://porownaj-laser.pl/images/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • https://porownaj-laser.pl/images/is-minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • https://porownaj-laser.pl/images/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • https://porownaj-laser.pl/images/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://porownaj-laser.pl/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://porownaj-laser.pl/images/roblox-hacked-com-2021_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
font_00_sfnt_off00002d2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D2D 22468 bytes
SHA-256: 4e313124ff9fde7604575b73263f60bcdf5eb56e9bf9c2c94b52ef39e57cbe44
font_01_sfnt_off00005f05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F05 18240 bytes
SHA-256: 1be29b22a500e2a60a7236cc7f3818504a778037c129f908a3826a58d12b939a

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