Malicious PDF — malware analysis report

Static analysis result for SHA-256 43af3861353c7ac5…

MALICIOUS

PDF

32.4 KB Created: 2021-07-19 22:44:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 6c066532f5cc43b6ebdcb26ca7388b50 SHA-1: d9758a368432aa6f2c4bed5b6492098a95ca20b2 SHA-256: 43af3861353c7ac5d2065caf252bd8cad81aa6a2055634107ccbcf396e0fe494
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains multiple embedded URLs and a prominent call-to-action related to hacking game accounts, suggesting a lure for users interested in cheats or exploits. The ML classifier strongly flagged this PDF as malicious, and the presence of numerous suspicious URLs indicates a high likelihood of malware distribution or phishing. No scripts were extracted, but the document structure itself serves as the lure.

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/431946152/how-to-hack-roblox-accounts-on-phone-game-hack
    • http://doganov.be/images/coin-master-free-spins-promo-code_GM406889139.pdf
    • http://doganov.be/images/tiktok-likes-free_GM835599320.pdf
    • http://doganov.be/images/how-to-get-free-robux-codes_GM431946152.pdf
    • http://doganov.be/images/free-minecraft-printables_GM479516143.pdf
    • http://doganov.be/images/minecraft-bedrock-edition-pc-download-free_GM479516143.pdf
    • http://doganov.be/images/roblox-hacked-com-2021_GM431946152.pdf
    • http://doganov.be/images/roblox-free-robux-generator_GM431946152.pdf
    • http://doganov.be/images/minecraft-pe-hacks_GM479516143.pdf
    • http://doganov.be/images/get-free-robux-no-human-verification_GM431946152.pdf
    • http://doganov.be/images/free-robux-without-downloading-apps_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000028cd.bin
0432f83d0dc0b1a3ee9b639698444aee66dfa6d13a9e2951562040b1f3162594		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28CD 22300 bytes
font_01_sfnt_off00005a16.bin
f8e74fa4b968a16dd44a94031ef99ed5be14016bd7b993395bbd98667463fda9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A16 19096 bytes

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