Malicious PDF — malware analysis report

Static analysis result for SHA-256 22716a2aa1351c91…

MALICIOUS

PDF

42.3 KB Created: 2021-05-16 17:13:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 333ae9fd8295906c36bd97e6f602ee08 SHA-1: d2e3532abc31e935090a4800216e361dc0beeaa5 SHA-256: 22716a2aa1351c9160087e67ed9230678a06f93b8f4c798a2753c3d703c3f737
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a visual download button lure, strongly suggesting an attempt to trick the user into downloading a secondary payload. The ML classifier also flagged this PDF as malicious with high confidence. While no scripts were directly extracted, the presence of external URIs and the document's theme of free game items indicate 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/431946152/blox-land-free-robux-game-hack PDF link annotation
    • https://www.cosmosdawn.net/images/roblox-redeem-codes-free_GM431946152.pdfIn PDF document text
    • https://www.cosmosdawn.net/images/minecraft-ios-mods_GM479516143.pdfIn PDF document text
    • https://www.cosmosdawn.net/images/daily-free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • http://cosmosdawn.net/images/coin-master-free-spins-apk-2021_GM406889139.pdfIn PDF document text
    • http://cosmosdawn.net/images/free-roblox-girl-clothes_GM431946152.pdfIn PDF document text
    • https://www.cosmosdawn.net/images/coin-master-free-coins-hack_GM406889139.pdfIn PDF document text
    • http://cosmosdawn.net/images/rbx-com_GM431946152.pdfIn PDF document text
    • http://cosmosdawn.net/images/how-to-get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://cosmosdawn.net/images/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
    • https://www.cosmosdawn.net/images/how-to-hack-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://www.cosmosdawn.net/images/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://cosmosdawn.net/images/how-to-get-free-robux-website_GM431946152.pdfIn PDF document text
    • https://www.cosmosdawn.net/images/coin-master-hack-pc-download_GM406889139.pdfIn PDF document text
    • http://cosmosdawn.net/images/coinmaster-fan-page_GM406889139.pdfIn PDF document text
    • https://www.cosmosdawn.net/images/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://www.cosmosdawn.net/images/free-promo-codes-roblox_GM431946152.pdfIn PDF document text
    • https://www.cosmosdawn.net/images/coin-master-hacks-free-spins_GM406889139.pdfIn PDF document text
    • https://www.cosmosdawn.net/images/coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.cosmosdawn.net/images/how-to-get-free-things-on-roblox_GM431946152.pdfIn PDF document text
    • http://cosmosdawn.net/images/games-like-coin-master-for-free_GM406889139.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_003_off00004a5d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A5D 24800 bytes
SHA-256: fa47ccc6a8bea3cd54683c1fb357628e1e84c5d91d3cc0f732966c78b92f29d9
font_01_sfnt_off0000823b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x823B 18492 bytes
SHA-256: 43325585731fb5abef9629b4ee3027de7c41cdd34c16702b82f5d396e8a55598

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