Malicious PDF — malware analysis report

Static analysis result for SHA-256 d04da4dba65acf31…

MALICIOUS

PDF

43.4 KB Created: 2021-05-12 11:45:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 6333dccbc40a3cec1ba9378723c3714a SHA-1: 84dac0c5e90a10cf9d8374e5120590bdcc9a5419 SHA-256: d04da4dba65acf31c9f6f8cd93033ba6f469a91edcc391f5015c9eb4fc52b9c6
142 Risk Score

Malware Insights

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

The PDF document contains numerous links to external websites, many of which are structured as SEO-optimized PDF links. The document body, though partially corrupted, suggests a lure related to free game items (Minecraft, Robux, Coin Master). The 'SE_CLICKFIX' heuristic indicates the document may instruct users to execute commands, a common social engineering tactic to bypass security measures. The presence of a large number of external links and the ML classifier's high confidence score strongly suggest malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 5

  • 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.
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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.xyz/app/479516143/how-to-make-your-own-minecraft-server-for-free-game-hack PDF link annotation
    • http://islandhopper.com.au/images/minecraft-windows-10-edition-unlock-full-game-free_GM479516143.pdfIn PDF document text
    • http://islandhopper.com.au/images/minecraft-ios-mods_GM479516143.pdfIn PDF document text
    • http://islandhopper.com.au/images/get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://islandhopper.com.au/images/coin-master-pet-food-free_GM406889139.pdfIn PDF document text
    • http://islandhopper.com.au/images/how-to-get-free-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://islandhopper.com.au/images/coin-master-free-download-app_GM406889139.pdfIn PDF document text
    • http://islandhopper.com.au/images/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdfIn PDF document text
    • http://islandhopper.com.au/images/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
    • http://islandhopper.com.au/images/how-to-hack-roblox-passwords_GM431946152.pdfIn PDF document text
    • http://islandhopper.com.au/images/how-can-i-get-free-coinsn-coin-master_GM406889139.pdfIn PDF document text
    • http://islandhopper.com.au/images/claimrobux-net_GM431946152.pdfIn PDF document text
    • http://islandhopper.com.au/images/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://islandhopper.com.au/images/can-you-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://islandhopper.com.au/images/robux-generator-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://islandhopper.com.au/images/coin-master-hack-unlimited-spins_GM406889139.pdfIn PDF document text
    • http://islandhopper.com.au/images/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • http://islandhopper.com.au/images/coin-master-hack-using-cheat-engine_GM406889139.pdfIn PDF document text
    • http://islandhopper.com.au/images/coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://islandhopper.com.au/images/universal-minecraft-converter-free_GM479516143.pdfIn PDF document text
    • http://islandhopper.com.au/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004e48.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E48 24868 bytes
SHA-256: 15f573a8bd4bbdd51ea343b686237f58e8dcc3f5b5010836309490bd3e000915
font_01_sfnt_off000086c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86C2 18460 bytes
SHA-256: 43abef8b834297908dc205ac191a436a457546b124377fb637ef7db2584f74fc

Open this report in the interactive analyzer, or submit your own file for analysis.