Malicious PDF — malware analysis report

Static analysis result for SHA-256 094b46de49a3c25d…

MALICIOUS

PDF

48.4 KB Created: 2021-06-08 20:53:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 9e99adfc128f864e3e00c3bb97cce91a SHA-1: e118551d0afe3426ffb77925a7a8f63735b408b1 SHA-256: 094b46de49a3c25dc3abfcd55be0ab0b223232ce9e0f69329650d45f3282c0db
102 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which are SEO-optimized slugs pointing to game-related cheats and hacks. The presence of a download button lure and a high ML classifier score further indicate malicious intent. The primary URL points to a Roblox hack, suggesting a lure for users seeking unauthorized advantages in games.

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/hack-roblox-lumber-tycoon-2-2021-game-hack
    • http://www.jureclomas.com.ar/images/how-to-get-free-pet-food-in-coin-master_GM406889139.pdf
    • http://www.jureclomas.com.ar/images/how-to-create-group-in-coin-master-free-spins_GM406889139.pdf
    • http://www.jureclomas.com.ar/images/how-to-become-a-hacker-in-roblox_GM431946152.pdf
    • http://www.jureclomas.com.ar/images/free-robux-just-click_GM431946152.pdf
    • http://www.jureclomas.com.ar/images/coin-master-pc-hack-tool_GM406889139.pdf
    • http://www.jureclomas.com.ar/images/how-to-make-a-minecraft-server-for-free-java_GM479516143.pdf
    • http://www.jureclomas.com.ar/images/pokemon-go-free-play-online-without-downloading_GM1094591345.pdf
    • http://www.jureclomas.com.ar/images/how-to-get-free-robux-on-phone-2021_GM431946152.pdf
    • http://www.jureclomas.com.ar/images/free-robux-how-to-complete-heavy-metal-machines_GM431946152.pdf
    • http://www.jureclomas.com.ar/images/get-me-robux_GM431946152.pdf
    • http://www.jureclomas.com.ar/images/como-conseguir-monedas-en-roblox-hack_GM431946152.pdf
    • http://www.jureclomas.com.ar/images/free-robux-generator-without-human-verification_GM431946152.pdf
    • http://www.jureclomas.com.ar/images/coin-master-reward-link_GM406889139.pdf
    • http://www.jureclomas.com.ar/images/how-to-hack-roblox-to-get-robux_GM431946152.pdf
    • http://www.jureclomas.com.ar/images/free-stuff-in-roblox-catalog-2021_GM431946152.pdf
    • http://www.jureclomas.com.ar/images/coin-master-hack-apk-download-latest-version_GM406889139.pdf
    • http://www.jureclomas.com.ar/images/free-coin-master-spins_GM406889139.pdf
    • http://www.jureclomas.com.ar/images/coin-master-free-spins-link-today-facebook_GM406889139.pdf
    • http://www.jureclomas.com.ar/images/how-to-hack-roblox-for-robux_GM431946152.pdf
    • http://www.jureclomas.com.ar/images/coin-master-free-spins-and-cards_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000050a6.bin
b2e7f98ec8247b88077afd322604fc2063f95ec7a306feb5c20077220c1ec7b5
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50A6 25604 bytes
font_01_sfnt_off00008a92.bin
d86d7dd4e322525e04c25fcfa6743908eb068b70657cde876d7dc7877c4666d7
pdf-font-stream PDF embedded font (sfnt) at offset 0x8A92 4016 bytes
font_02_sfnt_off000097ae.bin
56b1becef8dbf4eced3453ab1be83631d3ba914c9dcb0ba7256e3bd6afe0388e
pdf-font-stream PDF embedded font (sfnt) at offset 0x97AE 19164 bytes