Malicious PDF — malware analysis report

Static analysis result for SHA-256 1964d1c061288b29…

MALICIOUS

PDF

45.2 KB Created: 2021-05-13 15:13:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 5bcaae85149d80f4dcdd398a06cafadf SHA-1: 56143a446ac1a95fa7908fb1bebfebd3773cff86 SHA-256: 1964d1c061288b299e432f3e312685709b6160a675ec8e3b66fb4e6f76dd3a27
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 structured as SEO-optimized PDF links, suggesting a link farm designed to drive traffic. The document body and extracted URLs indicate a lure for free game-related items, such as Minecraft accounts or Robux, which is a common tactic for phishing or malware distribution. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9621

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.xyz/app/479516143/how-to-get-a-free-minecraft-account-game-hack
    • http://condit-pack.com/images/get-me-robux-for-free_GM431946152.pdf
    • http://condit-pack.com/images/coin-master-hack-without-verification_GM406889139.pdf
    • http://condit-pack.com/images/how-to-get-free-robux-hack-2021_GM431946152.pdf
    • http://condit-pack.com/images/vip-roblox-free_GM431946152.pdf
    • http://condit-pack.com/images/free-robux-without-doing-anything_GM431946152.pdf
    • http://condit-pack.com/images/free-coins-coin-master-2021_GM406889139.pdf
    • http://condit-pack.com/images/free-account-roblox-with-robux_GM431946152.pdf
    • http://condit-pack.com/images/how-to-get-free-robux-on-ipad_GM431946152.pdf
    • http://condit-pack.com/images/coin-master-hack-app-for-ios_GM406889139.pdf
    • http://condit-pack.com/images/how-to-log-out-of-coin-master_GM406889139.pdf
    • http://condit-pack.com/images/roblox-tix-generator_GM431946152.pdf
    • http://condit-pack.com/images/minecraft-xbox-one-free_GM479516143.pdf
    • http://condit-pack.com/images/free-spins-october-28-2021-coin-master_GM406889139.pdf
    • http://condit-pack.com/images/robux-websites-that-work_GM431946152.pdf
    • http://condit-pack.com/images/download-coin-master-hack-mod-apk_GM406889139.pdf
    • http://condit-pack.com/images/free-robux-without-human-verification-2021_GM431946152.pdf
    • http://condit-pack.com/images/robuxlove-net-free-robux_GM431946152.pdf
    • http://condit-pack.com/images/coin-master-hack-progamers_GM406889139.pdf
    • http://condit-pack.com/images/free-robux-hack-no-human-verification_GM431946152.pdf
    • http://condit-pack.com/images/robux-com-free-robux_GM431946152.pdf
    • https://freegiftcodes.eu
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b18.bin
857a3e9cf213c007dc9b7a788a37781c614d25bfbac6db6ee3898271944c02e6
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B18 25708 bytes
font_01_sfnt_off0000853e.bin
787e0768241fb57660bcc9c7f726cf687277c463cdf8c586c4782ee9d03c3606
pdf-font-stream PDF embedded font (sfnt) at offset 0x853E 2840 bytes
font_02_sfnt_off00008efd.bin
5a2a7e753a917a0c0776144ed208a5331958d262d8364954408ce80ee198d92a
pdf-font-stream PDF embedded font (sfnt) at offset 0x8EFD 18016 bytes