Malicious PDF — malware analysis report

Static analysis result for SHA-256 29c14dd00bf9329f…

MALICIOUS

PDF

42.4 KB Created: 2021-05-15 08:55:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 0146eaf8172645df2cd2e2c5a66a9618 SHA-1: 339a26b9093b0a9db14550c30003371d74390345 SHA-256: 29c14dd00bf9329fb18100def7c0dc2e84ba47f5d6863f4d4c7995a93be2bdf5
122 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs, many of which are part of a link farm, suggesting an attempt to manipulate search engine results or redirect users to malicious content. The ML classifier and PDF heuristics strongly indicate malicious intent, likely to trick users into downloading malware or engaging in phishing by offering game-related cheats or hacks. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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-ore-finder-mod-game-hack
    • http://generatorgallery.com.au/images/get-free-robux-no-human-verification_GM431946152.pdf
    • http://generatorgallery.com.au/images/how-to-hack-roblox-accounts-on-phone-2021_GM431946152.pdf
    • http://generatorgallery.com.au/images/roblox-report-hacker_GM431946152.pdf
    • http://generatorgallery.com.au/images/coin-master-free-spins-hack-link_GM406889139.pdf
    • http://generatorgallery.com.au/images/roblox-promo-codes-for-free-robux_GM431946152.pdf
    • http://generatorgallery.com.au/images/link-for-free-spins-on-coin-master_GM406889139.pdf
    • http://generatorgallery.com.au/images/free-robux-generator-no-human-verification-2021_GM431946152.pdf
    • http://generatorgallery.com.au/images/mcpe-master-coins-hack-download_GM406889139.pdf
    • http://generatorgallery.com.au/images/xray-hack_GM479516143.pdf
    • http://generatorgallery.com.au/images/links-for-free-spins-for-coin-master_GM406889139.pdf
    • http://generatorgallery.com.au/images/how-to-get-free-robux-without-any-verification_GM431946152.pdf
    • http://generatorgallery.com.au/images/minecraft-skins-free-girl_GM479516143.pdf
    • http://generatorgallery.com.au/images/how-to-get-free-robux-for-real_GM431946152.pdf
    • http://generatorgallery.com.au/images/coin-and-spin-link_GM406889139.pdf
    • http://generatorgallery.com.au/images/how-to-get-free-roblox-items_GM431946152.pdf
    • http://generatorgallery.com.au/images/how-to-hack-coin-master-root_GM406889139.pdf
    • http://generatorgallery.com.au/images/free-robux-hacks-no-verification_GM431946152.pdf
    • http://generatorgallery.com.au/images/today-free-spin-coin-master_GM406889139.pdf
    • http://generatorgallery.com.au/images/how-to-get-minecraft-pe-for-free_GM479516143.pdf
    • http://generatorgallery.com.au/images/claim-free-spins-coin-master_GM406889139.pdf
    • https://playhack.in/minecraft
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004bae.bin
a5737289effd15e7f837851dcf7e8715142b73c7df2182488330d827a9bc9613		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BAE 25292 bytes
font_01_sfnt_off000084ad.bin
3d0c275330d6a7b87118e225175bc9b431f0584a36e1632c85eac693847a7bcd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84AD 17884 bytes

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