Malicious PDF — malware analysis report

Static analysis result for SHA-256 147334c79f2e6e26…

MALICIOUS

PDF

45.6 KB Created: 2021-05-17 04:36:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: deb85571596d81f104fe3724f9a95341 SHA-1: ac59d69a578cd0b24a301d30b845a56fcfe4c148 SHA-256: 147334c79f2e6e262df5312ae51184833d5963065b1ca4f9dc5f2f1cc4bb6f5a
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various PDF files hosted on external domains. The ML_NYX_PDF_MALICIOUS heuristic also flagged the document with high confidence. The document body contains text related to 'free-to-play Minecraft Servers' and includes a URL, suggesting a lure for potentially unwanted content or further malicious downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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/free-to-play-minecraft-servers-game-hack PDF link annotation
    • http://sudamericarural.org/images/getrobux-ninja_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/free-roblox-accounts-dantdm_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/how-to-get-free-robux-without-verifying-2021_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/how-to-get-a-lot-of-robux_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://sudamericarural.org/images/blogger-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://sudamericarural.org/images/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://sudamericarural.org/images/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
    • http://sudamericarural.org/images/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://sudamericarural.org/images/how-to-hack-someone-on-roblox_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/block-best-robux_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/village-coin_GM406889139.pdfIn PDF document text
    • http://sudamericarural.org/images/how-to-get-free-minecraft-alts_GM479516143.pdfIn PDF document text
    • http://sudamericarural.org/images/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://sudamericarural.org/images/roblox-phantom-forces-hack_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/make-your-own-minecraft-server-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004de2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4DE2 24904 bytes
SHA-256: 3374171530f55f96795811e13780cdddde12867dda8d1a7de19578fbad063e36
font_01_sfnt_off00008657.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8657 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00009009.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9009 18232 bytes
SHA-256: df9bdba0ccb867e231e0707e3a94b10901008a424b0cfbbd7e5ef55edf45d1f1

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