Malicious PDF — malware analysis report

Static analysis result for SHA-256 0393bdf64b7c7d35…

MALICIOUS

PDF

45.5 KB Created: 2021-05-19 17:16:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: f36045fdbd09eeca03f2d4985b861aa0 SHA-1: d4511ae8e4fe9f286828db25fb7853718d88a194 SHA-256: 0393bdf64b7c7d35d904bc83ed3e097b117ba9ff251ecf67249c6c9b970bcf1c
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and references to game hacks, suggesting a lure to download malicious content. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs further supports a malicious intent. No scripts were extracted, but the document's content and embedded links point towards a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/roblox-royale-high-diamond-hack-game-hack
    • http://jasperfirstumc.com/images/free-spins-coin-master-2021_GM406889139.pdf
    • http://jasperfirstumc.com/images/games-like-coin-master-for-free_GM406889139.pdf
    • http://jasperfirstumc.com/images/how-to-hack-coin-master-apple_GM406889139.pdf
    • http://jasperfirstumc.com/images/promo-code-free-robux_GM431946152.pdf
    • http://jasperfirstumc.com/images/best-way-to-get-free-robux_GM431946152.pdf
    • http://jasperfirstumc.com/images/earn-robux-for-roblox_GM431946152.pdf
    • http://jasperfirstumc.com/images/pubg-uc-and-bp-free_GM1330123889.pdf
    • http://jasperfirstumc.com/images/coin-master-free-spins-and-coins-2021_GM406889139.pdf
    • http://jasperfirstumc.com/images/blogger-coin-master-free-spins_GM406889139.pdf
    • http://jasperfirstumc.com/images/free-spins-coin-master-hack_GM406889139.pdf
    • http://jasperfirstumc.com/images/how-to-hack-roblox-accounts-on-phone_GM431946152.pdf
    • http://jasperfirstumc.com/images/free-robux-no-verify-2021_GM431946152.pdf
    • http://jasperfirstumc.com/images/free-spins-on-coin-master_GM406889139.pdf
    • http://jasperfirstumc.com/images/free-spins-on-coin-master-2021_GM406889139.pdf
    • http://jasperfirstumc.com/images/coin-master-hack-no-human-verification-2021_GM406889139.pdf
    • http://jasperfirstumc.com/images/coin-master-daily-free-spins-link-2021_GM406889139.pdf
    • http://jasperfirstumc.com/images/coinmaster-gps-user-review-coinmaster-coin-master-hack-pagedemo-index_GM406889139.pdf
    • http://jasperfirstumc.com/images/roblox-free-hats_GM431946152.pdf
    • http://jasperfirstumc.com/images/roblox-place-rewards_GM431946152.pdf
    • http://jasperfirstumc.com/images/coin-master-cards-hack-2021_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b19.bin
83d031c2d3a08af3dd7533f42906fd2eb90a2f18560e5802199fdc59eedc6d90		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B19 27300 bytes
font_01_sfnt_off00008bfb.bin
9cb526c501b2cd2656a87403f494b9e3e6e4dc663a80e951563c0ffcc034b5e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8BFB 19536 bytes

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