Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/06/2024, 01:37

General

  • Target
    a879d92dc54e3c3cfa48155d7102817ff1d103a886fb560ca22e59aa26874d74.exe
  • Size 131KB
  • Sample240611-b1tx2sygmd
  • SHA256 a879d92dc54e3c3cfa48155d7102817ff1d103a886fb560ca22e59aa26874d74
  • MD5 SHA1 SHA512 SSDEEP
Score
9/10
upx

Malware Config

Signatures

  • UPX dump on OEP (original entry point) 42 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • UPX packed file 33 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in System32 directory 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Program Files directory 23 IoCs
  • Drops file in Windows directory 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a879d92dc54e3c3cfa48155d7102817ff1d103a886fb560ca22e59aa26874d74.exe
    "C:\Users\Admin\AppData\Local\Temp\a879d92dc54e3c3cfa48155d7102817ff1d103a886fb560ca22e59aa26874d74.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • Suspicious use of SetThreadContext
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4796
    • C:\Windows\SysWOW64\svchost.exe
      C:\Windows\System32\svchost.exe -EMBEDDING 423B5D51736E6673606C2147686D64725D426E6C6C6E6F2147686D64725D4C6862736E726E6775215269607364655D4C52486F676E5D304530304530435D474A422F565840 0
      2⤵
        PID:1192
      • C:\Windows\SysWOW64\svchost.exe
        C:\Windows\System32\svchost.exe -EMBEDDING 423B5D51736E6673606C2147686D64725D426E6C6C6E6F2147686D64725D4C6862736E726E6775215269607364655D4C52486F676E5D304530304530435D474A422F565840 0
        2⤵
        • Deletes itself
        • Loads dropped DLL
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        PID:3068
    • C:\Windows\system32\cmd.exe
      cmd.exe /c call "C:\Program Files\Common Files\Microsoft\1D11D1B\KVEIF.jpg" -3 423B5D51736E6673606C2147686D64725D426E6C6C6E6F2147686D64725D4C6862736E726E6775215269607364655D4C52486F676E5D304530304530435D474A422F565840
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:4344
      • C:\Program Files\Common Files\Microsoft\1D11D1B\KVEIF.jpg
        "C:\Program Files\Common Files\Microsoft\1D11D1B\KVEIF.jpg" -3 423B5D51736E6673606C2147686D64725D426E6C6C6E6F2147686D64725D4C6862736E726E6775215269607364655D4C52486F676E5D304530304530435D474A422F565840
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2800
        • C:\Windows\SysWOW64\svchost.exe
          C:\Windows\System32\svchost.exe -sys 423B5D51736E6673606C2147686D64725D426E6C6C6E6F2147686D64725D4C6862736E726E6775215269607364655D4C52486F676E5D304530304530435D474A422F565840 0
          3⤵
            PID:2772
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\System32\svchost.exe -sys 423B5D51736E6673606C2147686D64725D426E6C6C6E6F2147686D64725D4C6862736E726E6775215269607364655D4C52486F676E5D304530304530435D474A422F565840 0
            3⤵
            • Loads dropped DLL
            • Drops file in Program Files directory
            • Suspicious use of AdjustPrivilegeToken
            PID:4024

      Network

            MITRE ATT&CK Matrix

            Replay Monitor

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            Downloads

            1D11D1B123.IMD

            • Path C:\Program Files\Common Files\Microsoft Shared\MSInfo\1D11D1B\1D11D1B123.IMD
            • Size 132KB
            • SHA256 f9144bc2635710e655edd2091cc57511df1905ce907d66f648a4469ec0823530
            • MD5 SHA1 SHA512 SSDEEP

            KVEIF.jpg

            • Path C:\Program Files\Common Files\Microsoft Shared\MSInfo\1D11D1B\KVEIF.jpg
            • Size 131KB
            • SHA256 b9a42541e7e84eb73203e5e3278a3267a65da728c761ec02cfb9f6500432a25d
            • MD5 SHA1 SHA512 SSDEEP

            KVEIFss1.ini

            • Path C:\Program Files\Common Files\Microsoft Shared\MSInfo\1D11D1B\KVEIFss1.ini
            • Size 22B
            • SHA256 9a09d2a2b23760cbc02ab362728b30783f943d90beebbdbd03c4e8b288492d24
            • MD5 SHA1 SHA512

            ok.txt

            • Path C:\Program Files\Common Files\Microsoft Shared\MSInfo\1D11D1B\ok.txt
            • Size 104B
            • SHA256 0daff942d465f53d065fd37a6a61b1612b52a81325ab62ea2e4b9887b905e064
            • MD5 SHA1 SHA512

            KVEIF.jpg

            • Path C:\Program Files\Common Files\Microsoft\1D11D1B\KVEIF.jpg
            • Size 131KB
            • SHA256 6e6cb2fa149a8fec4a5e75090cae2c6fe21cda7f8c17c7eedaf2dcbefe2522db
            • MD5 SHA1 SHA512 SSDEEP

            KVEIFmain.ini

            • Path C:\Program Files\Common Files\microsoft shared\MSInfo\1D11D1B\KVEIFmain.ini
            • Size 630B
            • SHA256 c74fe545a77cbdab491cd72934d22ac5bd37154e65e05fa8de7f2233cb334981
            • MD5 SHA1 SHA512

            KVEIFmain.ini

            • Path C:\Program Files\Common Files\microsoft shared\MSInfo\1D11D1B\KVEIFmain.ini
            • Size 1KB
            • SHA256 88656a7e40826b212f2364b7019e66125822013003fdc0c06dc9235cce5160ac
            • MD5 SHA1 SHA512

            kernel64.dll

            • Path C:\Windows\SysWOW64\kernel64.dll
            • Size 625KB
            • SHA256 820c83c0533cfce2928e29edeaf6c255bc19ac9718b25a5656d99ffac30a03d6
            • MD5 SHA1 SHA512 SSDEEP

            606C646364636479.tmp

            • Path C:\Windows\Web\606C646364636479.tmp
            • Size 108KB
            • SHA256 1eacebb614305a9806113545be7b23cf14ce7e761ccf634510a7f1c0cfb6cd16
            • MD5 SHA1 SHA512 SSDEEP

            memory/3068-101-0x0000000000400000-0x000000000042D000-memory.dmp

            memory/3068-127-0x0000000000B80000-0x0000000000BD5000-memory.dmp

            memory/3068-245-0x0000000000400000-0x000000000042D000-memory.dmp

            memory/3068-117-0x0000000000B80000-0x0000000000BD5000-memory.dmp

            memory/3068-119-0x0000000000B80000-0x0000000000BD5000-memory.dmp

            memory/3068-121-0x0000000000B80000-0x0000000000BD5000-memory.dmp

            memory/3068-124-0x0000000000B80000-0x0000000000BD5000-memory.dmp

            memory/3068-125-0x0000000000B80000-0x0000000000BD5000-memory.dmp

            memory/3068-131-0x0000000000B80000-0x0000000000BD5000-memory.dmp

            memory/3068-129-0x0000000000B80000-0x0000000000BD5000-memory.dmp

            memory/3068-104-0x0000000000B80000-0x0000000000BD5000-memory.dmp

            memory/3068-105-0x0000000000B80000-0x0000000000BD5000-memory.dmp

            memory/3068-107-0x0000000000B80000-0x0000000000BD5000-memory.dmp

            memory/3068-97-0x0000000000400000-0x000000000042D000-memory.dmp

            memory/3068-100-0x0000000000400000-0x000000000042D000-memory.dmp

            memory/3068-109-0x0000000000B80000-0x0000000000BD5000-memory.dmp

            memory/3068-102-0x0000000000400000-0x000000000042D000-memory.dmp

            memory/3068-112-0x0000000000B80000-0x0000000000BD5000-memory.dmp

            memory/3068-115-0x0000000000B80000-0x0000000000BD5000-memory.dmp

            memory/3068-113-0x0000000000B80000-0x0000000000BD5000-memory.dmp

            memory/4024-197-0x0000000000400000-0x000000000042D000-memory.dmp

            memory/4024-246-0x0000000000400000-0x000000000042D000-memory.dmp

            memory/4796-5-0x0000000000790000-0x00000000007E5000-memory.dmp

            memory/4796-8-0x0000000000790000-0x00000000007E5000-memory.dmp

            memory/4796-3-0x0000000000790000-0x00000000007E5000-memory.dmp

            memory/4796-10-0x0000000000790000-0x00000000007E5000-memory.dmp

            memory/4796-27-0x0000000000790000-0x00000000007E5000-memory.dmp

            memory/4796-31-0x0000000000790000-0x00000000007E5000-memory.dmp

            memory/4796-15-0x0000000000790000-0x00000000007E5000-memory.dmp

            memory/4796-2-0x0000000000790000-0x00000000007E5000-memory.dmp

            memory/4796-13-0x0000000000790000-0x00000000007E5000-memory.dmp

            memory/4796-18-0x0000000000790000-0x00000000007E5000-memory.dmp

            memory/4796-20-0x0000000000790000-0x00000000007E5000-memory.dmp

            memory/4796-21-0x0000000000790000-0x00000000007E5000-memory.dmp

            memory/4796-32-0x0000000000790000-0x00000000007E5000-memory.dmp

            memory/4796-33-0x0000000000790000-0x00000000007E5000-memory.dmp

            memory/4796-29-0x0000000000790000-0x00000000007E5000-memory.dmp

            memory/4796-23-0x0000000000790000-0x00000000007E5000-memory.dmp

            memory/4796-11-0x0000000000790000-0x00000000007E5000-memory.dmp

            memory/4796-25-0x0000000000790000-0x00000000007E5000-memory.dmp