Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bd46a5d71c00eea…

MALICIOUS

PDF

45.0 KB Created: 2021-05-16 02:09:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 7d3ceac53ae3c0bf3577c2d90ed32b16 SHA-1: 5243f1319836db4f9f06c6071a45420b72b800d3 SHA-256: 9bd46a5d71c00eea6c5f6a6b3403052f00c0ebd63eeb50cd433e6f8dd3ac216d
102 Risk Score

Malware Insights

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

The PDF document contains numerous external links, many of which are part of a link farm designed to attract users searching for game cheats and downloads. The ML classifier strongly indicates maliciousness, and the presence of a "download button" heuristic suggests a deceptive user interface. The primary IOC is the URL https://netcdn.xyz/app/479516143/best-free-minecraft-servers-game-hack, which is likely the destination for the malicious download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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/best-free-minecraft-servers-game-hack
    • http://sagrasantacroce.it/images/minecraft-pe-017-0-apk-free-download-android_GM479516143.pdf
    • http://sagrasantacroce.it/images/can-you-actually-get-free-robux_GM431946152.pdf
    • http://sagrasantacroce.it/images/coin-master-codes_GM406889139.pdf
    • http://sagrasantacroce.it/images/coin-master-400-spin-link-hack_GM406889139.pdf
    • http://sagrasantacroce.it/images/free-robux-that-actually-works_GM431946152.pdf
    • http://sagrasantacroce.it/images/roblox-demon_GM431946152.pdf
    • http://sagrasantacroce.it/images/free-card-collection-in-coin-master_GM406889139.pdf
    • http://sagrasantacroce.it/images/free-robux-that-actually-works-2021_GM431946152.pdf
    • http://sagrasantacroce.it/images/free-minecraft-maps-pe_GM479516143.pdf
    • http://sagrasantacroce.it/images/coin-master-daily-free-spins-haktuts_GM406889139.pdf
    • http://sagrasantacroce.it/images/hacks-and-cheats-for-coin-master_GM406889139.pdf
    • http://sagrasantacroce.it/images/how-to-get-roblox-credit-for-free_GM431946152.pdf
    • http://sagrasantacroce.it/images/coin-master-hack-app-download-free_GM406889139.pdf
    • http://sagrasantacroce.it/images/minecraft-115-2-hacks_GM479516143.pdf
    • http://sagrasantacroce.it/images/free-robux-generator-no-human-verification-2021_GM431946152.pdf
    • http://sagrasantacroce.it/images/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdf
    • http://sagrasantacroce.it/images/minecraft-packs-free_GM479516143.pdf
    • http://sagrasantacroce.it/images/free-roblox-animations_GM431946152.pdf
    • http://sagrasantacroce.it/images/robux-fun-hack_GM431946152.pdf
    • http://sagrasantacroce.it/images/hack-coins-in-coin-master_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004c2a.bin
4eabfcabafd47aeeb4b04b334a3f8651d7254282efabb01c7d506f62fba33030
pdf-font-stream PDF embedded font (sfnt) at offset 0x4C2A 25052 bytes
font_01_sfnt_off000084cd.bin
96a70491b0783ad8c6fc9b11a18f021aa22c69ac41ee4499b781d16a1b99b689
pdf-font-stream PDF embedded font (sfnt) at offset 0x84CD 2820 bytes
font_02_sfnt_off00008e6d.bin
c529f757d6b4a4f9c7840ecb5b6035c813da3045ee3b560268268dab20db1aa9
pdf-font-stream PDF embedded font (sfnt) at offset 0x8E6D 17896 bytes