Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d8e3fd984b71653…

MALICIOUS

PDF

33.7 KB Created: 2021-07-07 13:03:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: d6bb09bfb72aab162ab60b7638a8133b SHA-1: d3be4f28abb24bba1377d115533d8e1a09500449 SHA-256: 2d8e3fd984b7165384db487b8b470e339d06e27d99e26e05bce5f157204d41cf
62 Risk Score

Malware Insights

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

The PDF document contains multiple embedded URLs and a call-to-action button, suggesting a lure to download further content. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs, including one pointing to a raw IP address, reinforces this assessment. The document body and extracted URLs indicate a scam related to free in-game currency and game hacks.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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 http://netcdn.tw/app/406889139/coin-master-free-soins-game-hack
    • http://118.98.227.172/opac/repository/is-it-possbile-to-get-free-robux_GM431946152.pdf
    • http://118.98.227.172/opac/repository/downtown-rp-roblox-hacks_GM431946152.pdf
    • http://118.98.227.172/opac/repository/how-to-find-free-roblox-groups_GM431946152.pdf
    • http://118.98.227.172/opac/repository/free-robux-quiz_GM431946152.pdf
    • http://118.98.227.172/opac/repository/free-coins-coin-master-blog_GM406889139.pdf
    • http://118.98.227.172/opac/repository/how-to-get-free-robux-not-a-scam_GM431946152.pdf
    • http://118.98.227.172/opac/repository/roblox-rhs-hack_GM431946152.pdf
    • http://118.98.227.172/opac/repository/how-to-get-minecraft-java-for-free_GM479516143.pdf
    • http://118.98.227.172/opac/repository/coin-master-free-spin-link-today-2021_GM406889139.pdf
    • http://118.98.227.172/opac/repository/hacks-download-for-roblox-for-roblox_GM431946152.pdf
    • http://118.98.227.172/opac/repository/real-coin-master-hacks_GM406889139.pdf
    • http://118.98.227.172/opac/repository/roblox-how-to-get-free-robux-with-cheat-engine-62_GM431946152.pdf
    • http://118.98.227.172/opac/repository/how-to-hack-in-roblox-jailbreak-noclip_GM431946152.pdf
    • http://118.98.227.172/opac/repository/2021-free-robux-windows-8_GM431946152.pdf
    • http://118.98.227.172/opac/repository/free-robux-scam-site_GM431946152.pdf
    • http://118.98.227.172/opac/repository/free-robux-codes-generator-no-verification_GM431946152.pdf
    • http://118.98.227.172/opac/repository/coin-master-free-spins-usa-2021_GM406889139.pdf
    • http://118.98.227.172/opac/repository/cute-free-roblox-outfits_GM431946152.pdf
    • http://118.98.227.172/opac/repository/roblox-free-robux-download-2021_GM431946152.pdf
    • http://118.98.227.172/opac/repository/how-to-get-free-coins-on-roblox-murder-mystery-2_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00002e34.bin
1572a4c0075fd4e560b90e226e0e5e485921a787e8dd150c0907cd1f0e227c17
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2E34 22920 bytes
font_01_sfnt_off000061dc.bin
f4306de497449c0c0250de5deec7b8066a87c54091f9de3abe5accc399ec3ddb
pdf-font-stream PDF embedded font (sfnt) at offset 0x61DC 17996 bytes