Malicious PDF — malware analysis report

Static analysis result for SHA-256 450e56aaab7a8799…

MALICIOUS

PDF

50.9 KB Created: 2021-05-13 16:33:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 8322aaa5f9c4c1442bc221dd8d2f64fb SHA-1: 5ca5f7d9e1c380820058382e000cd00a657b3943 SHA-256: 450e56aaab7a8799b1df1cfd5d18a4bf2e0a22ef57d8dbf828abf5a0e4235685
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The document presents a fake CAPTCHA or verification prompt to trick users into interacting with it, a common social engineering tactic. It also contains an embedded URI pointing to a suspicious URL, likely intended to lead the user to download a malicious payload or engage in credential theft. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9348

Heuristics 4

  • 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
  • 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/blox.pink-free-robux-game-hack PDF link annotation
    • http://getthelook-bkk.com/images/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • http://getthelook-bkk.com/images/how-to-hack-someones-minecraft-account_GM479516143.pdfIn PDF document text
    • http://getthelook-bkk.com/images/spins-gratis-coin-master-hoy_GM406889139.pdfIn PDF document text
    • http://getthelook-bkk.com/images/pasos-para-hackear-coins-master_GM406889139.pdfIn PDF document text
    • http://getthelook-bkk.com/images/instagram-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://getthelook-bkk.com/images/cm-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://getthelook-bkk.com/images/rewards-roblox-com_GM431946152.pdfIn PDF document text
    • http://getthelook-bkk.com/images/a-lot-of-robux_GM431946152.pdfIn PDF document text
    • http://getthelook-bkk.com/images/coin-master-ultra-attack-hack_GM406889139.pdfIn PDF document text
    • http://getthelook-bkk.com/images/roblox-login-hack_GM431946152.pdfIn PDF document text
    • http://getthelook-bkk.com/images/roblox-free-rubox_GM431946152.pdfIn PDF document text
    • http://getthelook-bkk.com/images/make-free-robux_GM431946152.pdfIn PDF document text
    • http://getthelook-bkk.com/images/hack-version-of-coin-master_GM406889139.pdfIn PDF document text
    • http://getthelook-bkk.com/images/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://getthelook-bkk.com/images/free-minecraft-server_GM479516143.pdfIn PDF document text
    • http://getthelook-bkk.com/images/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
    • http://getthelook-bkk.com/images/free-roblox-adopt-me-pets_GM431946152.pdfIn PDF document text
    • http://getthelook-bkk.com/images/i-need-more-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://getthelook-bkk.com/images/coin-master-card-collection-hack_GM406889139.pdfIn PDF document text
    • http://getthelook-bkk.com/images/coin-master-hack-xyz-apk-download_GM406889139.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
stream_003_off00004af1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AF1 26868 bytes
SHA-256: 9953a9ab67f97436e6f809522e2e637c9fac707dc0300ee147596db9b69ba489
font_01_sfnt_off00008919.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8919 8252 bytes
SHA-256: 7ebedd6b182173c8e55836cb0d114b2c4a0ac85c96a51b9f0706c935f8415fea
font_02_sfnt_off0000a42e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA42E 18620 bytes
SHA-256: 20ad8a2126bb9f489cd4862944fdd8c1c01869fd803457c3ce1390bedb89f69f

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