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Analysis

  • max time kernel
    147s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/01/2024, 06:09

General

  • Target

    7c4da1ee111a7d7a9e5330c320ab947e1750b261f10752544d554745b266f319.exe

  • Size

    93KB

  • MD5

    36b911da6d9248ad4b683901b0460612

  • SHA1

    02b48d75fea67a4cbcea96857f82d220aff9782a

  • SHA256

    7c4da1ee111a7d7a9e5330c320ab947e1750b261f10752544d554745b266f319

  • SHA512

    7c284d23072ee1064ba88964c6ba974b7f307df8d4a7d569b89d1ae271c0c2b054afe468abceb53f987482e85fd7ee73d8443ad8343c3b71ccdd2025ad9c9f92

  • SSDEEP

    1536:vCwC+xhUa9urgOBPRNvM4jEwzGi1dDLDogS:vCmUa9urgObdGi1dbR

Score
8/10

Malware Config

Signatures

  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 4 IoCs
  • Executes dropped EXE 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 38 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7c4da1ee111a7d7a9e5330c320ab947e1750b261f10752544d554745b266f319.exe
    "C:\Users\Admin\AppData\Local\Temp\7c4da1ee111a7d7a9e5330c320ab947e1750b261f10752544d554745b266f319.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1660
    • C:\Users\Admin\AppData\Local\Temp\server.exe
      "C:\Users\Admin\AppData\Local\Temp\server.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Drops file in System32 directory
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3504
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:4140
  • C:\Windows\system32\rundll32.exe
    "C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe
    1⤵
      PID:2824
    • C:\Windows\System32\svchost.exe
      C:\Windows\System32\svchost.exe -k UnistackSvcGroup
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:784

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\server.exe

      Filesize

      93KB

      MD5

      36b911da6d9248ad4b683901b0460612

      SHA1

      02b48d75fea67a4cbcea96857f82d220aff9782a

      SHA256

      7c4da1ee111a7d7a9e5330c320ab947e1750b261f10752544d554745b266f319

      SHA512

      7c284d23072ee1064ba88964c6ba974b7f307df8d4a7d569b89d1ae271c0c2b054afe468abceb53f987482e85fd7ee73d8443ad8343c3b71ccdd2025ad9c9f92

    • C:\Users\Admin\AppData\Roaming\app

      Filesize

      5B

      MD5

      410c3c7c3e0376e2f9b228980b58d042

      SHA1

      3aec3fa12cd88edca90fdc72a0d25cd071dc2052

      SHA256

      5c272042cede2596555e6b6f2c36857b015ccab9f34affbc63d6b000ccd08391

      SHA512

      2a1e382b045d59580271cb05b521d0c6e99772be7cd5ce38d3e5e1997a4cb9d3fe5d424a24c67383a5a2d0002d4a2194f71e1604fa9ff0199944f8cee9b26a57

    • memory/784-46-0x0000026A9FBB0000-0x0000026A9FBC0000-memory.dmp

      Filesize

      64KB

    • memory/784-62-0x0000026AA7F20000-0x0000026AA7F21000-memory.dmp

      Filesize

      4KB

    • memory/784-64-0x0000026AA7F50000-0x0000026AA7F51000-memory.dmp

      Filesize

      4KB

    • memory/784-65-0x0000026AA7F50000-0x0000026AA7F51000-memory.dmp

      Filesize

      4KB

    • memory/784-66-0x0000026AA8060000-0x0000026AA8061000-memory.dmp

      Filesize

      4KB

    • memory/1660-2-0x0000000074DD0000-0x0000000075381000-memory.dmp

      Filesize

      5.7MB

    • memory/1660-13-0x0000000074DD0000-0x0000000075381000-memory.dmp

      Filesize

      5.7MB

    • memory/1660-1-0x0000000000C20000-0x0000000000C30000-memory.dmp

      Filesize

      64KB

    • memory/1660-0-0x0000000074DD0000-0x0000000075381000-memory.dmp

      Filesize

      5.7MB

    • memory/3504-14-0x0000000074DD0000-0x0000000075381000-memory.dmp

      Filesize

      5.7MB

    • memory/3504-15-0x0000000074DD0000-0x0000000075381000-memory.dmp

      Filesize

      5.7MB

    • memory/3504-29-0x0000000074DD0000-0x0000000075381000-memory.dmp

      Filesize

      5.7MB