Malicious PDF — malware analysis report

Static analysis result for SHA-256 0424001e6fe62aa2…

MALICIOUS

PDF

48.0 KB Created: 2021-06-08 14:38:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 6cd357ce8c550405edc503b451d31e7a SHA-1: 7e93399b44e3610548a7177b18bf54c93261c48c SHA-256: 0424001e6fe62aa2c5973a793c2ac790a506e32163940b915c6a43c86d78db47
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, many of which are related to game hacks and free in-game currency, indicating a likely scam or phishing attempt. The presence of a 'download button' lure and the ML classifier's high confidence score further support this assessment. Although no scripts were directly extracted, the PDF's structure and embedded URIs suggest it's designed to redirect users to malicious or deceptive content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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 https://netcdn.tw/app/431946152/get-free-robux-in-1-second-game-hack
    • http://schrichte.de/images/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdf
    • http://schrichte.de/images/free-robux-websites-that-actually-work_GM431946152.pdf
    • http://schrichte.de/images/roblox-slaying-simulator-level-hack_GM431946152.pdf
    • http://schrichte.de/images/link-for-free-spins-on-coin-master_GM406889139.pdf
    • http://schrichte.de/images/free-robux-with-no-survey_GM431946152.pdf
    • http://schrichte.de/images/60-free-spins-coin-master_GM406889139.pdf
    • http://schrichte.de/images/coin-master-free-spins-save_GM406889139.pdf
    • http://schrichte.de/images/roblox-cbro-skins-for-free_GM431946152.pdf
    • http://schrichte.de/images/is-minecraft-realms-free_GM479516143.pdf
    • http://schrichte.de/images/roblox-rape_GM431946152.pdf
    • http://schrichte.de/images/how-to-hack-people-in-roblox_GM431946152.pdf
    • http://schrichte.de/images/minecraft-free-reddit_GM479516143.pdf
    • http://schrichte.de/images/free-minecraft-server_GM479516143.pdf
    • http://schrichte.de/images/claim-free-spins-coin-master_GM406889139.pdf
    • http://schrichte.de/images/coin-master-daily-spin-free_GM406889139.pdf
    • http://schrichte.de/images/coin-master-free-online-game_GM406889139.pdf
    • http://schrichte.de/images/no-human-verification_GM431946152.pdf
    • http://schrichte.de/images/free-robux-with-no-verification_GM431946152.pdf
    • http://schrichte.de/images/100-free-spins-coin-master-2021_GM406889139.pdf
    • http://schrichte.de/images/how-to-get-free-robux-without-surveys_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005285.bin
169baced9b3768ff85038f48ee54f113fb7b329daf948f0a982f615236e7a56a
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5285 25968 bytes
font_01_sfnt_off00008e28.bin
889cfc2fd0afa9ea114d6666204c6ce0548d0aae2cba345827d317498c4c06bc
pdf-font-stream PDF embedded font (sfnt) at offset 0x8E28 2984 bytes
font_02_sfnt_off00009854.bin
83093b469139ba0c3258e2daec8d3e1de380efa582da6f2c9c68a919cc674fa0
pdf-font-stream PDF embedded font (sfnt) at offset 0x9854 18400 bytes