Malicious PDF — malware analysis report

Static analysis result for SHA-256 602797867aa5233f…

MALICIOUS

PDF

46.6 KB Created: 2021-06-13 20:56:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: e78cba5c344c3430d79ea4672c548445 SHA-1: d38c20248e9c1fb3c20fdd7c79e43f9d03fdb876 SHA-256: 602797867aa5233fe415a1086877a23af7f8a06a902b5252b8c0b104e4e80807
102 Risk Score

Malware Insights

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

The PDF document contains numerous external links, forming a link farm designed to direct users to pages offering game cheats and hacks. The primary URL, http://netcdn.co/app/431946152/roblox-cheat-engine-never-patched-updated-2021-18-game-hack, suggests a lure for downloading malicious software disguised as game cheats. The presence of a PDF_SEO_LINK_FARM heuristic indicates a deliberate attempt to create a large number of SEO-optimized links, likely to increase visibility and drive traffic to malicious download sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

Heuristics 4

  • 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.
  • 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/roblox-cheat-engine-never-patched-updated-2021-18-game-hack
    • http://demenagementlandry.com/images/how-to-see-chegg-answers-free-tiktok_GM835599320.pdf
    • http://demenagementlandry.com/images/free-coin-master-hacks-no-verification-or-survey_GM406889139.pdf
    • http://demenagementlandry.com/images/free-robux-no-scam_GM431946152.pdf
    • http://demenagementlandry.com/images/free-robux-come_GM431946152.pdf
    • http://demenagementlandry.com/images/coin-master-game-hunters-club_GM406889139.pdf
    • http://demenagementlandry.com/images/daily-free-spins-for-coin-master_GM406889139.pdf
    • http://demenagementlandry.com/images/free-robux-codes-no-verification-2021_GM431946152.pdf
    • http://demenagementlandry.com/images/minecraft-free-minecoins_GM479516143.pdf
    • http://demenagementlandry.com/images/minecraft-free-unblocked_GM479516143.pdf
    • http://demenagementlandry.com/images/coin-master-free-spins-link-today_GM406889139.pdf
    • http://demenagementlandry.com/images/how-often-pubg-uc-roots_GM1330123889.pdf
    • http://demenagementlandry.com/images/how-to-hack-coin-master_GM406889139.pdf
    • http://demenagementlandry.com/images/coin-master-hack-ios-download_GM406889139.pdf
    • http://demenagementlandry.com/images/coin-master-free-spins-deutsch-download-2021-link_GM406889139.pdf
    • http://demenagementlandry.com/images/earn-free-robux-for-roblox_GM431946152.pdf
    • http://demenagementlandry.com/images/free-robux-generator-no-human-verification-2021_GM431946152.pdf
    • http://demenagementlandry.com/images/hack-para-coin-master-singapore_GM406889139.pdf
    • http://demenagementlandry.com/images/coin-master-hack-xyz-download_GM406889139.pdf
    • http://demenagementlandry.com/images/how-to-download-minecraft-for-free-on-windows_GM479516143.pdf
    • http://demenagementlandry.com/images/free-coin-and-spin-for-coin-master_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004d6f.bin
ea939ee10291c1940a0a83538f3d32c86a778b2933fe7a9b85fccc4123509bc5
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D6F 29224 bytes
font_01_sfnt_off00008e88.bin
9911f7054f050aee159f6932818b8ca25add68ba18c07ff377e79f1d7c61b61f
pdf-font-stream PDF embedded font (sfnt) at offset 0x8E88 20108 bytes