Malicious PDF — malware analysis report

Static analysis result for SHA-256 c80eef04ef663919…

MALICIOUS

PDF

43.2 KB Created: 2021-05-16 08:58:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: b5abc54596e2c325b72233a5b5d79a4c SHA-1: a8e829649245c1b8c3f883b0cc097c4af048890e SHA-256: c80eef04ef66391948851f2ce97fe09c5f00438d85af6aa636dc84041d7a1bb4
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF document contains a lure for a game hack client, directing users to a URL that likely hosts a malicious executable. The 'SE_CLICKFIX' heuristic indicates the document instructs the user to run a command, likely to bypass security measures and execute the downloaded payload. The presence of multiple URLs associated with game cheats and hacks further supports the social engineering pretext.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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/wurst-client-1.8-9-game-hack
    • http://gamixpaliwa.pl/images/coin-master-20-free-spins-link-2021_GM406889139.pdf
    • http://gamixpaliwa.pl/images/free-minecraft-account-and-password_GM479516143.pdf
    • http://gamixpaliwa.pl/images/coin-master-34-5-hack_GM406889139.pdf
    • http://gamixpaliwa.pl/images/how-to-get-free-robux-2021_GM431946152.pdf
    • http://gamixpaliwa.pl/images/how-to-get-free-robux-without-verification-2021_GM431946152.pdf
    • http://gamixpaliwa.pl/images/roblox-com-www_GM431946152.pdf
    • http://gamixpaliwa.pl/images/free-spins-for-coin-master-2021_GM406889139.pdf
    • http://gamixpaliwa.pl/images/hacks-para-roblox_GM431946152.pdf
    • http://gamixpaliwa.pl/images/coin-master-free-spins-twitter_GM406889139.pdf
    • http://gamixpaliwa.pl/images/how-to-get-free-premium-roblox_GM431946152.pdf
    • http://gamixpaliwa.pl/images/coin-master-2021_GM406889139.pdf
    • http://gamixpaliwa.pl/images/free-roblox-acc_GM431946152.pdf
    • http://gamixpaliwa.pl/images/minecraft-java-edition-code-free_GM479516143.pdf
    • http://gamixpaliwa.pl/images/coin-master-fb-free-spins-link_GM406889139.pdf
    • http://gamixpaliwa.pl/images/how-to-get-robux-on-phone_GM431946152.pdf
    • http://gamixpaliwa.pl/images/easy-robux-hack_GM431946152.pdf
    • http://gamixpaliwa.pl/images/free-robux-games-that-actually-work-2021_GM431946152.pdf
    • http://gamixpaliwa.pl/images/free-robux-hack_GM431946152.pdf
    • http://gamixpaliwa.pl/images/can-you-hack-coin-master_GM406889139.pdf
    • http://gamixpaliwa.pl/images/free-admin-roblox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004cfb.bin
60437be38c6650ee4d4247d2e79e5344a7c34b671d0e3285f6056c647f8ea936		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CFB 25272 bytes
font_01_sfnt_off00008682.bin
4d8ada0c5ac659fb49370babfb0317bee460cb2310b474ce078588896e89c849		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8682 18296 bytes

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