Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a44c8c425720ca8…

MALICIOUS

PDF

33.4 KB Created: 2021-07-03 20:04:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: e24cad22b24c9c92ca31a3feb08ad17b SHA-1: 30d5172de0164163f935e350457f68f59e0bd1a6 SHA-256: 2a44c8c425720ca8916aa31f4faef48b8274cb81641825a68772ef124fdcbec3
102 Risk Score

Malware Insights

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

The document exhibits characteristics of a malicious lure, presenting a fake CAPTCHA or human verification prompt to deceive users. It contains numerous URLs pointing to sites offering game cheats and hacks, such as 'minecraft-java-for-free-game-hack', suggesting the primary goal is to entice users into downloading potentially unwanted or malicious software. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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
  • 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-for-free-game-hack PDF link annotation
    • https://www.xenonsvjetla.com/files/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/how-to-get-free-robux-without-surveys_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/easy-way-to-get-robux_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/skidma-roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/get-free-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/roblox-free-without-installing_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/free-executor-roblox_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/wwwfree-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/make-free-robux_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/how-to-hack-roblox-accounts-on-phone-2021_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/google-roblox-games_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/hack-account-roblox-download_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/master-coin-free-spin-daily_GM406889139.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_off00002fc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FC8 21836 bytes
SHA-256: a45e09d5c93f5c98e59ec0eab08cba62268f5909e00c753e25c3dd0e2911108a
font_01_sfnt_off00005fb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FB3 18276 bytes
SHA-256: 68849f4d63324190072240a7063db5b1f9739ca1319a3b9e65ce22385324d153

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