Malicious PDF — malware analysis report

Static analysis result for SHA-256 372fa61b711d48e1…

MALICIOUS

PDF

47.1 KB Created: 2021-06-03 04:01:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 6d3479924775a3520622d95b74e1b2d2 SHA-1: 25e10e92511058d38a8afd148081b4f14e818237 SHA-256: 372fa61b711d48e1ed3970630bed248377662963d5764a4bd1de270ff1829b0a
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures for free game currency and hacks, directing users to external URLs for downloads. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded URLs further supports a malicious intent to trick users into downloading potentially harmful content. No scripts were extracted, but the overall pattern suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

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 https://netcdn.online/app/431946152/how-to-get-free-robux-youtube-game-hack
    • http://tckontrola.hr/files/free-shields-coin-master_GM406889139.pdf
    • https://tckontrola.hr/files/mcpe-optifine_GM479516143.pdf
    • http://tckontrola.hr/files/coin-master-daily-free-spins-2021_GM406889139.pdf
    • http://tckontrola.hr/files/can-i-have-robux_GM431946152.pdf
    • http://tckontrola.hr/files/free-coin-master-spin-app_GM406889139.pdf
    • http://tckontrola.hr/files/coin-master-card-collection-hack_GM406889139.pdf
    • https://tckontrola.hr/files/free-spins-on-coin-masters_GM406889139.pdf
    • https://tckontrola.hr/files/is-minecraft-vr-free_GM479516143.pdf
    • http://tckontrola.hr/files/free-tiktok-followers-no-human-verification-or-survey_GM835599320.pdf
    • http://tckontrola.hr/files/free-spins-and-coins-coin-master-links_GM406889139.pdf
    • http://tckontrola.hr/files/how-to-hack-someones-account-on-roblox_GM431946152.pdf
    • https://tckontrola.hr/files/coin-master-hack-app-for-iphone_GM406889139.pdf
    • https://tckontrola.hr/files/roblox-hair-for-free_GM431946152.pdf
    • https://tckontrola.hr/files/hack-coin-master-for-iphone_GM406889139.pdf
    • https://tckontrola.hr/files/i-didnt-get-my-free-spins-in-coin-master_GM406889139.pdf
    • https://tckontrola.hr/files/free-robux-generator-no-human-verification-2021_GM431946152.pdf
    • https://tckontrola.hr/files/win-free-robux_GM431946152.pdf
    • https://tckontrola.hr/files/how-to-get-minecraft-windows-10-for-free_GM479516143.pdf
    • http://tckontrola.hr/files/today-free-spin-coin-master_GM406889139.pdf
    • http://tckontrola.hr/files/free-minecraft-skin-creator_GM479516143.pdf
    • https://rblx.land
    • https://www.mic
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004eea.bin
ef08e152d2bd2f7fe2f7b988bd9acb407328166cd92de00ac1c3a2d45aa588f0
pdf-font-stream PDF embedded font (sfnt) at offset 0x4EEA 25648 bytes
font_01_sfnt_off00008ad9.bin
94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
pdf-font-stream PDF embedded font (sfnt) at offset 0x8AD9 2824 bytes
font_02_sfnt_off00009487.bin
c8869677d4d84c4518e8410e1128de6ae04a76f8db213e07b668dd1668cda2fe
pdf-font-stream PDF embedded font (sfnt) at offset 0x9487 18444 bytes