Malicious PDF — malware analysis report

Static analysis result for SHA-256 124f6fd3ad9abd61…

MALICIOUS

PDF

33.4 KB Created: 2021-07-08 05:27:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: d38375d28e2af36594629e29a24fcc46 SHA-1: d8c2897fda3e40a844ed49865519664896728afe SHA-256: 124f6fd3ad9abd61c117ebaa2081f91cf7c6c318f5ece05e9566656f53e80503
102 Risk Score

Malware Insights

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

This PDF document contains numerous links to external websites, many of which are structured as a link farm for SEO purposes. The document body and extracted URLs suggest a lure for users seeking free in-game items or hacks for popular games like Minecraft and Roblox. The ML classifier strongly flagged this PDF as malicious, indicating a high likelihood of it leading to a harmful download or exploit.

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.tw/app/479516143/minecraft-java-for-free-game-hack PDF link annotation
    • http://www.hlad.hr/files/inject-hack-com-roblox-robux_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/coin-master-free-gold_GM406889139.pdfIn PDF document text
    • http://www.hlad.hr/files/roblox-cheat-engine-shut-down-server_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/hilton-hotels-hack-roblox-vermilion_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/games-that-give-free-robux-without-pass_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/without-tiktok-free-view-iphone-11_GM835599320.pdfIn PDF document text
    • http://www.hlad.hr/files/free-robux-gift-card-code-database_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/hack-coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.hlad.hr/files/how-to-hack-someones-minecraft-account_GM479516143.pdfIn PDF document text
    • http://www.hlad.hr/files/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/are-you-cheating-on-your-roblox-girlfriend_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/cheat-engine-63-roblox-apocalypse-rising_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • http://www.hlad.hr/files/pubg-10-000-uc-free_GM1330123889.pdfIn PDF document text
    • http://www.hlad.hr/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/coin-master-hack-tool_GM406889139.pdfIn PDF document text
    • http://www.hlad.hr/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/how-to-get-free-robux-legally_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/robux-hack-bc_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/all-free-items-in-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002de7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DE7 22456 bytes
SHA-256: 25e47055be392981cc8dc634f41d29ed74965fd5460431746d4a417386c0d28f
font_01_sfnt_off00005feb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FEB 18276 bytes
SHA-256: 68849f4d63324190072240a7063db5b1f9739ca1319a3b9e65ce22385324d153