Malicious PDF — malware analysis report

Static analysis result for SHA-256 6956a62c28a1ef1c…

MALICIOUS

PDF

46.6 KB Created: 2021-06-07 13:07:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 83970156aa5bf63a9780c4ef3ac5a850 SHA-1: 9a63224df8c42e0a5c14857939de01ddd6113e7c SHA-256: 6956a62c28a1ef1c7d32516197b9bd04514934209f29849e24dfc3519df0fb12
62 Risk Score

Malware Insights

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

The document contains multiple embedded URLs pointing to sites offering game hacks and free in-game currency, strongly suggesting a phishing or malware distribution lure. The presence of a 'download button' heuristic and the ML classifier's high confidence further support this assessment. The document's content and embedded links indicate an attempt to trick users into downloading potentially malicious files.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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.tw/app/431946152/free-roblox-online-no-download-game-hack PDF link annotation
    • https://reggieslockandkey.com/images/roblox-moderators_GM431946152.pdfIn PDF document text
    • http://reggieslockandkey.com/images/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/free-robux-offers_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/hack-coin-master-free_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/free-roblox-shirts-templates_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/minecraft-free-trial_GM479516143.pdfIn PDF document text
    • http://reggieslockandkey.com/images/safe-hack-for-coin-master-android_GM406889139.pdfIn PDF document text
    • http://reggieslockandkey.com/images/get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdfIn PDF document text
    • https://reggieslockandkey.com/images/minecraft-client-download_GM479516143.pdfIn PDF document text
    • http://reggieslockandkey.com/images/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://reggieslockandkey.com/images/do-you-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • https://reggieslockandkey.com/images/coin-master-village-3_GM406889139.pdfIn PDF document text
    • http://reggieslockandkey.com/images/download-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://reggieslockandkey.com/images/old-roblox-accounts-for-free_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/tiktok-free-folowers-jio-phone-install-tamil_GM835599320.pdfIn PDF document text
    • https://reggieslockandkey.com/images/roblox-free-skin_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/how-to-get-minecraft-windows-10-edition-for-free_GM479516143.pdfIn PDF document text
    • http://reggieslockandkey.com/images/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/free-robux-no-human-verification-no-survey_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
stream_004_off00004fcf.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4FCF 29540 bytes
SHA-256: 115f5602694a44397c455d5a3154fa7ea4099c6ec5434b80ef99bc78c5bdfc33
font_01_sfnt_off000091e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91E7 18804 bytes
SHA-256: f417cba9383967175beff3217b5c4337456b867924254ab854a69b1990d71b23

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