Malicious PDF — malware analysis report

Static analysis result for SHA-256 b027f293f1a5bbeb…

MALICIOUS

PDF

43.1 KB Created: 2021-05-19 21:53:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: d518627ebf11ce7a5763e82e44791568 SHA-1: 5fdece9a25ac28b89822f1010ab152b99675542f SHA-256: b027f293f1a5bbeb2bcedfd2b631333a65bd36016ebedab676cae26f388f82bd
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, many of which are SEO-optimized PDF documents related to game hacks and cheats. The primary URL, https://netcdn.xyz/app/431946152/roblox-hacks-2021-game-hack, likely serves as a landing page for a malicious download or exploit. The ML classifier strongly indicated maliciousness, supporting the conclusion that this document is part of a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/431946152/roblox-hacks-2021-game-hack
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/coin-master-hack-spins-2021_GM406889139.pdf
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/pubg-uc-logo_GM1330123889.pdf
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/how-to-make-robux-on-roblox_GM431946152.pdf
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/how-to-get-free-robux-on-roblox_GM431946152.pdf
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/coin-master-hack-app-for-ios_GM406889139.pdf
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/how-do-you-get-free-food-on-coin-master_GM406889139.pdf
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/where-can-i-get-free-coins-for-coin-master_GM406889139.pdf
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/free-spins-and-coins-coin-master_GM406889139.pdf
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/free-roblox-hack-us_GM431946152.pdf
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/minecraft-java-for-free_GM479516143.pdf
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/coin-master-hack-mod-apk-download_GM406889139.pdf
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/apps-to-hack-coin-master_GM406889139.pdf
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/how-to-get-free-robux-easy-hack_GM431946152.pdf
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/coin-master-free-coins-link-blogspot_GM406889139.pdf
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/free-robux-obby_GM431946152.pdf
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/coin-master-free-spins-2021_GM406889139.pdf
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/coin-master-free-spin-and-coins-links-2021_GM406889139.pdf
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/coin-master-free-spins-link-2021_GM406889139.pdf
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/how-can-you-get-free-robux_GM431946152.pdf
    • http://www.dallahgrp.com/uploaded_files/userfiles/files/coin-master-free-spins-coins_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000049ea.bin
8feefe41bdcdda703ea8261bf14ef50b62f4f151fc7e237e66ac88a696576a17		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49EA 25972 bytes
font_01_sfnt_off000084f0.bin
09e382df304bf090e7d4979f9a4a25aa7e11969d647bdc760e706e621b680adc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84F0 18584 bytes

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