Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef052fb018c44ae7…

MALICIOUS

PDF

42.7 KB Created: 2021-05-16 23:18:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 5f839089a31d7a4fbfc5d8073e904698 SHA-1: 518a05185906c68561779a47c75768c971c815ae SHA-256: ef052fb018c44ae78e70c437160d74f160d6d26c16b3f0cdc11817961be824e9
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs pointing to game-related hacks and cheats, suggesting a lure for users to download potentially malicious files. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs and callback lures reinforces the malicious intent. Although no scripts were explicitly extracted, the document's structure and embedded links are indicative of a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/479516143/minecraft-fly-hack-game-hack PDF link annotation
    • http://pakoles.com/assets/CKImages/files/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://pakoles.com/assets/CKImages/files/coin-master-hack-tool-pc_GM406889139.pdfIn PDF document text
    • http://pakoles.com/assets/CKImages/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://pakoles.com/assets/CKImages/files/minecraft-switch-free_GM479516143.pdfIn PDF document text
    • http://pakoles.com/assets/CKImages/files/how-to-make-free-robux_GM431946152.pdfIn PDF document text
    • http://pakoles.com/assets/CKImages/files/free-bedrock-minecraft_GM479516143.pdfIn PDF document text
    • http://pakoles.com/assets/CKImages/files/free-minecraft-generator_GM479516143.pdfIn PDF document text
    • http://pakoles.com/assets/CKImages/files/coin-mast-hacks_GM406889139.pdfIn PDF document text
    • http://pakoles.com/assets/CKImages/files/minecraft-xbox-360-free-download-code_GM479516143.pdfIn PDF document text
    • http://pakoles.com/assets/CKImages/files/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
    • http://pakoles.com/assets/CKImages/files/minecraft-apk-114_GM479516143.pdfIn PDF document text
    • http://pakoles.com/assets/CKImages/files/coin-master-hack-app-2021_GM406889139.pdfIn PDF document text
    • http://pakoles.com/assets/CKImages/files/best-free-robux-sites_GM431946152.pdfIn PDF document text
    • http://pakoles.com/assets/CKImages/files/roblox-free-clothes-generator_GM431946152.pdfIn PDF document text
    • http://pakoles.com/assets/CKImages/files/get-me-robux-for-free_GM431946152.pdfIn PDF document text
    • http://pakoles.com/assets/CKImages/files/minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://pakoles.com/assets/CKImages/files/robux-generator-no-verification-needed_GM431946152.pdfIn PDF document text
    • http://pakoles.com/assets/CKImages/files/coin-master-hack-spins-and-coins-unlimited-free_GM406889139.pdfIn PDF document text
    • http://pakoles.com/assets/CKImages/files/roblox-promo-codes-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://pakoles.com/assets/CKImages/files/roblox-hack-me_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004bb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BB2 25620 bytes
SHA-256: 82a66a959d84d05f665ce02db4b6f2dcbac88e8fca3be48440468550ca4a69df
font_01_sfnt_off000085c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85C0 17992 bytes
SHA-256: 06651707645ad1f4ebda8b3f746ca430a0b9618d46277a77061ba05985c34688

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