Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a4c013b37ca82b8…

MALICIOUS

PDF

33.4 KB Created: 2021-06-18 05:38:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: ec695bea4689ce965e6c03f0d9d9e2cb SHA-1: db0794fada7374e61052a949c45a8ebe88fee61c SHA-256: 7a4c013b37ca82b88baba7ae77592d499889a87194a078107f5db34ef4ce52fe
102 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs and a call-to-action phrase, strongly suggesting a phishing or scam attempt. The ML classifier and heuristic firings indicate a malicious PDF designed to trick users into downloading potentially harmful files by offering game-related cheats or hacks. The document body explicitly mentions 'Roblox Cheat Engine Wall Hack' and 'CLICK HERE TO ACCESS ROBLOX GENERATOR', reinforcing the deceptive lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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-wall-hack-game-hack
    • http://doganov.be/images/free-roblox-redeem-cards-live_GM431946152.pdf
    • http://doganov.be/images/free-coins-coin-master-link_GM406889139.pdf
    • http://doganov.be/images/free-roblox-exploits-no-key_GM431946152.pdf
    • http://doganov.be/images/coin-master-hacks-for-cards_GM406889139.pdf
    • http://doganov.be/images/free-robux-2021-no-human-verification-or-survey_GM431946152.pdf
    • http://doganov.be/images/free-robux-only-username-no-human-verification_GM431946152.pdf
    • http://doganov.be/images/master-coin-hack_GM406889139.pdf
    • http://doganov.be/images/red-cropped-top-and-ripped-jeans-roblox-outfit-free_GM431946152.pdf
    • http://doganov.be/images/roblox-hacked-client-download-kostenlos-deutsch_GM431946152.pdf
    • http://doganov.be/images/free-tiktok-followers-and-likes_GM835599320.pdf
    • http://doganov.be/images/is-roblox-free-on-computer_GM431946152.pdf
    • http://doganov.be/images/free-l-robux-2021-obby_GM431946152.pdf
    • http://doganov.be/images/roblox-free-robux-bots-are-back_GM431946152.pdf
    • http://doganov.be/images/how-to-get-free-robux-2021-2021-2021_GM431946152.pdf
    • http://doganov.be/images/how-to-get-free-robux-by-playing-games_GM431946152.pdf
    • http://doganov.be/images/free-tiktok-fans-and-likes_GM835599320.pdf
    • http://doganov.be/images/coin-master-daily-free-spins-link-haktuts_GM406889139.pdf
    • http://doganov.be/images/coin-master-daily-free-spins-blogspot_GM406889139.pdf
    • http://doganov.be/images/roblox-robux-generator-hack-softonic_GM431946152.pdf
    • http://doganov.be/images/coin-master-for-pc-free-download_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002cca.bin
ce612159f3b1b5eed3552b1d6b1fd1c33dbf00d7eda9e03d9ff81d839478d098
pdf-font-stream PDF embedded font (sfnt) at offset 0x2CCA 22016 bytes
font_01_sfnt_off00005d5b.bin
31614a8b7cc3b93279194b48f994b799e4c0378c993fe044e885e8a6e4dcd736
pdf-font-stream PDF embedded font (sfnt) at offset 0x5D5B 19056 bytes