Malicious PDF — malware analysis report

Static analysis result for SHA-256 46ca0e729085483e…

MALICIOUS

PDF

45.4 KB Created: 2021-05-12 04:32:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: b50cd4d5ac0aecc05967166e758c50ef SHA-1: ccdf303f0752a759700a99c5b9a42a1a62ba407d SHA-256: 46ca0e729085483e773d4f034eae154d86e5a034c5c15abc8398d6534cfd7a56
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a lure for free in-game currency, strongly suggesting a phishing or malware distribution attempt. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the presence of external links and the MFA lure heuristic indicate a high likelihood of credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

Heuristics 4

  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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/earn-robux-game-hack PDF link annotation
    • http://xn--80adcduozbpo4eve.xn--p1ai/images/free-roblox-girl-clothes_GM431946152.pdfIn PDF document text
    • http://xn--80adcduozbpo4eve.xn--p1ai/images/how-to-get-roebucks-in-roblox_GM431946152.pdfIn PDF document text
    • http://xn--80adcduozbpo4eve.xn--p1ai/images/how-to-earn-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://xn--80adcduozbpo4eve.xn--p1ai/images/hack-coin-master-apk-2021_GM406889139.pdfIn PDF document text
    • http://xn--80adcduozbpo4eve.xn--p1ai/images/roblox-builders-club-free_GM431946152.pdfIn PDF document text
    • http://xn--80adcduozbpo4eve.xn--p1ai/images/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://xn--80adcduozbpo4eve.xn--p1ai/images/coin-master-hack-spins-android_GM406889139.pdfIn PDF document text
    • http://xn--80adcduozbpo4eve.xn--p1ai/images/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://xn--80adcduozbpo4eve.xn--p1ai/images/roblox-generator_GM431946152.pdfIn PDF document text
    • http://xn--80adcduozbpo4eve.xn--p1ai/images/robux-com-free_GM431946152.pdfIn PDF document text
    • http://xn--80adcduozbpo4eve.xn--p1ai/images/roblox-hack-codes_GM431946152.pdfIn PDF document text
    • http://xn--80adcduozbpo4eve.xn--p1ai/images/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • http://xn--80adcduozbpo4eve.xn--p1ai/images/free-robux-games_GM431946152.pdfIn PDF document text
    • http://xn--80adcduozbpo4eve.xn--p1ai/images/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://xn--80adcduozbpo4eve.xn--p1ai/images/how-to-get-free-robux-without-surveys_GM431946152.pdfIn PDF document text
    • http://xn--80adcduozbpo4eve.xn--p1ai/images/coin-master-free-spins-link-2021-march_GM406889139.pdfIn PDF document text
    • http://xn--80adcduozbpo4eve.xn--p1ai/images/youtube-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://xn--80adcduozbpo4eve.xn--p1ai/images/coin-master-time-hack-2021_GM406889139.pdfIn PDF document text
    • http://xn--80adcduozbpo4eve.xn--p1ai/images/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://xn--80adcduozbpo4eve.xn--p1ai/images/best-free-minecraft-hacked-client_GM479516143.pdfIn 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
font_00_sfnt_off000045b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45B0 28856 bytes
SHA-256: 8747345d5ddf9704964d4af1b1f5a97763fca13f02c3d0a4d214ddf89f66a910
font_01_sfnt_off000085fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85FB 2836 bytes
SHA-256: fd98c8f6e7c2e74bbd5822409159a93ac5c94da083ae4c2eb269d4284375f9e8
font_02_sfnt_off00008fa1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FA1 18076 bytes
SHA-256: 211a529ae6a0212354e2c8faa3e6424c15162b595112409e99389753daabd842

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