Malicious PDF — malware analysis report

Static analysis result for SHA-256 987c29915dbaffd0…

MALICIOUS

PDF

34.8 KB Created: 2021-07-03 10:45:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 447a89da0c103cfb7337fb692ea81fdc SHA-1: dd0dfe5ed43d8c30d2dca169243595a2e5e0cebd SHA-256: 987c29915dbaffd0e8e0527fa8a72611f6bbc6de885d1d74e2509683e7c27a0d
62 Risk Score

Malware Insights

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

This PDF document contains numerous embedded URLs and a call-to-action phrase, strongly suggesting a phishing or malware distribution attempt. The ML classifier flagged it with high confidence, and the presence of external URIs, including one pointing to a raw IP address, indicates it is likely attempting to download a second-stage payload. The document's content focuses on game cheats and hacks, a common lure for such attacks.

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.co/app/431946152/how-to-hack-people-in-roblox-game-hack
    • http://118.98.227.172/opac/repository/guide--coin-master-free-tips_GM406889139.pdf
    • http://118.98.227.172/opac/repository/robux-today_GM431946152.pdf
    • http://118.98.227.172/opac/repository/roblox-free-robux-generator-apphack-online_GM431946152.pdf
    • http://118.98.227.172/opac/repository/coin-master-free-blogspot_GM406889139.pdf
    • http://118.98.227.172/opac/repository/mcpe-download_GM479516143.pdf
    • http://118.98.227.172/opac/repository/how-to-hack-back-into-your-account-on-roblox_GM431946152.pdf
    • http://118.98.227.172/opac/repository/how-to-make-free-robux_GM431946152.pdf
    • http://118.98.227.172/opac/repository/coin-master-free-codes_GM406889139.pdf
    • http://118.98.227.172/opac/repository/free-clothing-roblox-catalog_GM431946152.pdf
    • http://118.98.227.172/opac/repository/how-to-get-roblox-bc-for-free-2021_GM431946152.pdf
    • http://118.98.227.172/opac/repository/robloxheroxyz-free-robux_GM431946152.pdf
    • http://118.98.227.172/opac/repository/roblox-black-t-shirt-free_GM431946152.pdf
    • http://118.98.227.172/opac/repository/synapse-roblox-exploit-download-free_GM431946152.pdf
    • http://118.98.227.172/opac/repository/free-vip-server-roblox-any-game_GM431946152.pdf
    • http://118.98.227.172/opac/repository/cheats-for-big-paintball-roblox_GM431946152.pdf
    • http://118.98.227.172/opac/repository/uncopylock-free-robux-wait-for-24-hours-for-your-robux_GM431946152.pdf
    • http://118.98.227.172/opac/repository/roblox-hack-mobile-generator_GM431946152.pdf
    • http://118.98.227.172/opac/repository/free-promo-codes-roblox-not-expired_GM431946152.pdf
    • http://118.98.227.172/opac/repository/free-tiktok-followers-no-human-verification-or-survey-2021_GM835599320.pdf
    • http://118.98.227.172/opac/repository/krnl-download_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003070.bin
878d7398e8804ce45fdd00e899cad832dce3bae6b15127eee127f0b058be985d
pdf-font-stream PDF embedded font (sfnt) at offset 0x3070 22580 bytes
font_01_sfnt_off000062c4.bin
210a0ca19f3049b49adbbe174b6d1900b8bba92406d0cafcc0c0c398ed60933b
pdf-font-stream PDF embedded font (sfnt) at offset 0x62C4 19148 bytes