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Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    02/10/2022, 00:23

General

  • Target

    23fab8e73a76e15208fd9b6085c56f8340c1b2e1879b6676c06314d1781f2b4c.exe

  • Size

    460KB

  • MD5

    59e5709610450cd0910d414a37f0c004

  • SHA1

    de8d36bfc5c392f62a6b6019b0607ff3b8408dbf

  • SHA256

    23fab8e73a76e15208fd9b6085c56f8340c1b2e1879b6676c06314d1781f2b4c

  • SHA512

    7d689f3edbaccc4087c2f33279a5fa956ae9d9c5b35d17c5f0475decd951097d627276661f8048a12cb0b62304fc79e268102a44768b2506595ddf39e458b2eb

  • SSDEEP

    12288:zlSt6oIHNOhU5O5TYo4XqTig5GSR9CClDDL:zlSt69HNx6T/5xT

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Executes dropped EXE 7 IoCs
  • UPX packed file 6 IoCs

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

  • Deletes itself 1 IoCs
  • Loads dropped DLL 10 IoCs
  • Adds Run key to start application 2 TTPs 54 IoCs
  • Drops desktop.ini file(s) 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates processes with tasklist 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 44 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 52 IoCs

Processes

  • C:\Windows\system32\csrss.exe
    %SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,20480,768 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ServerDll=sxssrv,4 ProfileControl=Off MaxRequestThreads=16
    1⤵
    • Executes dropped EXE
    • Drops desktop.ini file(s)
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:332
  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:1360
    • C:\Users\Admin\AppData\Local\Temp\23fab8e73a76e15208fd9b6085c56f8340c1b2e1879b6676c06314d1781f2b4c.exe
      "C:\Users\Admin\AppData\Local\Temp\23fab8e73a76e15208fd9b6085c56f8340c1b2e1879b6676c06314d1781f2b4c.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:828
      • C:\Users\Admin\iBdqphzke5.exe
        C:\Users\Admin\iBdqphzke5.exe
        3⤵
        • Modifies visiblity of hidden/system files in Explorer
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:936
        • C:\Users\Admin\yuupi.exe
          "C:\Users\Admin\yuupi.exe"
          4⤵
          • Modifies visiblity of hidden/system files in Explorer
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of SetWindowsHookEx
          PID:1636
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c tasklist&&del iBdqphzke5.exe
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1444
          • C:\Windows\SysWOW64\tasklist.exe
            tasklist
            5⤵
            • Enumerates processes with tasklist
            • Suspicious use of AdjustPrivilegeToken
            PID:1876
      • C:\Users\Admin\astat.exe
        C:\Users\Admin\astat.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1000
        • C:\Users\Admin\astat.exe
          "C:\Users\Admin\astat.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          PID:1596
      • C:\Users\Admin\dstat.exe
        C:\Users\Admin\dstat.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:1912
      • C:\Users\Admin\fstat.exe
        C:\Users\Admin\fstat.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1808
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe"
          4⤵
            PID:1176
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c tasklist&&del 23fab8e73a76e15208fd9b6085c56f8340c1b2e1879b6676c06314d1781f2b4c.exe
          3⤵
          • Deletes itself
          • Suspicious use of WriteProcessMemory
          PID:1956
          • C:\Windows\SysWOW64\tasklist.exe
            tasklist
            4⤵
            • Enumerates processes with tasklist
            • Suspicious use of AdjustPrivilegeToken
            PID:856
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k netsvcs
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:868

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\astat.exe

      Filesize

      60KB

      MD5

      87c6498966e3f85fac743c89050aa312

      SHA1

      05c165c34cbfa14e4925c33ace81992b0f50a2b5

      SHA256

      30c8328585e41968aff773da16cedbe590dcefd293c7fa74a69c557ecbf2c3c5

      SHA512

      740f7159ee78f73e57c92e583b8c4f97c5dd49b68b9c321da976d7e318819daa28e8dfc76e95e1e3ccee643dc464324c40b481d1849863e287d826adb577b420

    • C:\Users\Admin\astat.exe

      Filesize

      60KB

      MD5

      87c6498966e3f85fac743c89050aa312

      SHA1

      05c165c34cbfa14e4925c33ace81992b0f50a2b5

      SHA256

      30c8328585e41968aff773da16cedbe590dcefd293c7fa74a69c557ecbf2c3c5

      SHA512

      740f7159ee78f73e57c92e583b8c4f97c5dd49b68b9c321da976d7e318819daa28e8dfc76e95e1e3ccee643dc464324c40b481d1849863e287d826adb577b420

    • C:\Users\Admin\astat.exe

      Filesize

      60KB

      MD5

      87c6498966e3f85fac743c89050aa312

      SHA1

      05c165c34cbfa14e4925c33ace81992b0f50a2b5

      SHA256

      30c8328585e41968aff773da16cedbe590dcefd293c7fa74a69c557ecbf2c3c5

      SHA512

      740f7159ee78f73e57c92e583b8c4f97c5dd49b68b9c321da976d7e318819daa28e8dfc76e95e1e3ccee643dc464324c40b481d1849863e287d826adb577b420

    • C:\Users\Admin\dstat.exe

      Filesize

      36KB

      MD5

      b6da847084e39e0cecf175c32c91b4bb

      SHA1

      fbfd9494fabed5220cdf01866ff088fe7adc535b

      SHA256

      065781e8a55cf59cb926d5950e0039e19b50b1e081023404fbff4d7a32fc9cbe

      SHA512

      59d372ea36904cd48c99f2f34740c22004b35c5e5dada2417813b0463292af19e4aa5ba4552cc443da373e40ba03a1f7906019a567806806f5972c202a31d9d2

    • C:\Users\Admin\fstat.exe

      Filesize

      271KB

      MD5

      34353cf7e1d1b10bcbbcae0745110535

      SHA1

      2fb471681daac6f6d66477b7772025da4f58c508

      SHA256

      b2d7a66e2d10d8943e48d6f3ad75237ff379e82ab0101a620406c4569be1d959

      SHA512

      7404f82abfabd21d6f2a88b55f6f0ff886bb0a1f16a9d45c6883d74daa26451f862a10a78646c549c3a3264ba4bd9fb44949d470493af895973dd05a0ec311e6

    • C:\Users\Admin\fstat.exe

      Filesize

      271KB

      MD5

      34353cf7e1d1b10bcbbcae0745110535

      SHA1

      2fb471681daac6f6d66477b7772025da4f58c508

      SHA256

      b2d7a66e2d10d8943e48d6f3ad75237ff379e82ab0101a620406c4569be1d959

      SHA512

      7404f82abfabd21d6f2a88b55f6f0ff886bb0a1f16a9d45c6883d74daa26451f862a10a78646c549c3a3264ba4bd9fb44949d470493af895973dd05a0ec311e6

    • C:\Users\Admin\iBdqphzke5.exe

      Filesize

      244KB

      MD5

      a4cdb62cf4866a17e742e7e9cc73d237

      SHA1

      30d94f8e872455ac569949ac4c768d0a0cdfbba7

      SHA256

      c741d649bf5b72fbe97470820ce994ce29b153baae14af10c3a2a9adc3098b32

      SHA512

      c4447f95565d3e5dc0ef7712382325280bedf127ac682f85f4043b586afb4188633f2c73277595eb31fe45d992107492f42c82a71f448286a9cb8fac4bfb3671

    • C:\Users\Admin\iBdqphzke5.exe

      Filesize

      244KB

      MD5

      a4cdb62cf4866a17e742e7e9cc73d237

      SHA1

      30d94f8e872455ac569949ac4c768d0a0cdfbba7

      SHA256

      c741d649bf5b72fbe97470820ce994ce29b153baae14af10c3a2a9adc3098b32

      SHA512

      c4447f95565d3e5dc0ef7712382325280bedf127ac682f85f4043b586afb4188633f2c73277595eb31fe45d992107492f42c82a71f448286a9cb8fac4bfb3671

    • C:\Users\Admin\yuupi.exe

      Filesize

      244KB

      MD5

      0f666763f542cd5e7102f7a73bae45b6

      SHA1

      6e6effd59964aa59ab82958d2f68a1fec0ab1e03

      SHA256

      b2f04c36d6045ea3871a6baa64c80f342b81365dcd2bfdf8c1cf192527dc1442

      SHA512

      d30a29d25807795a5d1918fcfc94205e769f2a9e26a3323c0363a657ad1f512684693387401429fcd9133a5603fc29010c52d9b0faab936b7be43beb2d4c2171

    • C:\Users\Admin\yuupi.exe

      Filesize

      244KB

      MD5

      0f666763f542cd5e7102f7a73bae45b6

      SHA1

      6e6effd59964aa59ab82958d2f68a1fec0ab1e03

      SHA256

      b2f04c36d6045ea3871a6baa64c80f342b81365dcd2bfdf8c1cf192527dc1442

      SHA512

      d30a29d25807795a5d1918fcfc94205e769f2a9e26a3323c0363a657ad1f512684693387401429fcd9133a5603fc29010c52d9b0faab936b7be43beb2d4c2171

    • C:\Windows\system32\consrv.dll

      Filesize

      53KB

      MD5

      4d7cde615a0f534bd5e359951829554b

      SHA1

      c885d00d9000f2a5dbc78f6193a052b36f4fe968

      SHA256

      414fdf9bdcae5136c1295d6d24740c50a484acd81f1f7d0fb5d5c138607cb80a

      SHA512

      33d632f9fbb694440a1ca568c90518784278efd1dc9ee2b57028149d56ebe1f7346d5b59dcfafee2eeaa10091dda05f48958e909d6bfc891e037ae1cfbd048d4

    • \??\globalroot\systemroot\assembly\temp\@

      Filesize

      2KB

      MD5

      de52e4110f7ebae0f20acb95640cc2c7

      SHA1

      b88b8b2b1cdbcdc27b3ea6dc3b681d970d51d031

      SHA256

      f457fbc1f71d582a9555f6a2f8944e859ef39045aafc60d64b85ff5e2fe9c330

      SHA512

      02c49ebbb2e5a6e1745809bcc387a9999580b35f2a2f602e516d7ded34d108eac753f8137529e5eb7dc14fc8c47538fb7d9ef9f29842cc15475f5159a9ff36ed

    • \Users\Admin\astat.exe

      Filesize

      60KB

      MD5

      87c6498966e3f85fac743c89050aa312

      SHA1

      05c165c34cbfa14e4925c33ace81992b0f50a2b5

      SHA256

      30c8328585e41968aff773da16cedbe590dcefd293c7fa74a69c557ecbf2c3c5

      SHA512

      740f7159ee78f73e57c92e583b8c4f97c5dd49b68b9c321da976d7e318819daa28e8dfc76e95e1e3ccee643dc464324c40b481d1849863e287d826adb577b420

    • \Users\Admin\astat.exe

      Filesize

      60KB

      MD5

      87c6498966e3f85fac743c89050aa312

      SHA1

      05c165c34cbfa14e4925c33ace81992b0f50a2b5

      SHA256

      30c8328585e41968aff773da16cedbe590dcefd293c7fa74a69c557ecbf2c3c5

      SHA512

      740f7159ee78f73e57c92e583b8c4f97c5dd49b68b9c321da976d7e318819daa28e8dfc76e95e1e3ccee643dc464324c40b481d1849863e287d826adb577b420

    • \Users\Admin\dstat.exe

      Filesize

      36KB

      MD5

      b6da847084e39e0cecf175c32c91b4bb

      SHA1

      fbfd9494fabed5220cdf01866ff088fe7adc535b

      SHA256

      065781e8a55cf59cb926d5950e0039e19b50b1e081023404fbff4d7a32fc9cbe

      SHA512

      59d372ea36904cd48c99f2f34740c22004b35c5e5dada2417813b0463292af19e4aa5ba4552cc443da373e40ba03a1f7906019a567806806f5972c202a31d9d2

    • \Users\Admin\dstat.exe

      Filesize

      36KB

      MD5

      b6da847084e39e0cecf175c32c91b4bb

      SHA1

      fbfd9494fabed5220cdf01866ff088fe7adc535b

      SHA256

      065781e8a55cf59cb926d5950e0039e19b50b1e081023404fbff4d7a32fc9cbe

      SHA512

      59d372ea36904cd48c99f2f34740c22004b35c5e5dada2417813b0463292af19e4aa5ba4552cc443da373e40ba03a1f7906019a567806806f5972c202a31d9d2

    • \Users\Admin\fstat.exe

      Filesize

      271KB

      MD5

      34353cf7e1d1b10bcbbcae0745110535

      SHA1

      2fb471681daac6f6d66477b7772025da4f58c508

      SHA256

      b2d7a66e2d10d8943e48d6f3ad75237ff379e82ab0101a620406c4569be1d959

      SHA512

      7404f82abfabd21d6f2a88b55f6f0ff886bb0a1f16a9d45c6883d74daa26451f862a10a78646c549c3a3264ba4bd9fb44949d470493af895973dd05a0ec311e6

    • \Users\Admin\fstat.exe

      Filesize

      271KB

      MD5

      34353cf7e1d1b10bcbbcae0745110535

      SHA1

      2fb471681daac6f6d66477b7772025da4f58c508

      SHA256

      b2d7a66e2d10d8943e48d6f3ad75237ff379e82ab0101a620406c4569be1d959

      SHA512

      7404f82abfabd21d6f2a88b55f6f0ff886bb0a1f16a9d45c6883d74daa26451f862a10a78646c549c3a3264ba4bd9fb44949d470493af895973dd05a0ec311e6

    • \Users\Admin\iBdqphzke5.exe

      Filesize

      244KB

      MD5

      a4cdb62cf4866a17e742e7e9cc73d237

      SHA1

      30d94f8e872455ac569949ac4c768d0a0cdfbba7

      SHA256

      c741d649bf5b72fbe97470820ce994ce29b153baae14af10c3a2a9adc3098b32

      SHA512

      c4447f95565d3e5dc0ef7712382325280bedf127ac682f85f4043b586afb4188633f2c73277595eb31fe45d992107492f42c82a71f448286a9cb8fac4bfb3671

    • \Users\Admin\iBdqphzke5.exe

      Filesize

      244KB

      MD5

      a4cdb62cf4866a17e742e7e9cc73d237

      SHA1

      30d94f8e872455ac569949ac4c768d0a0cdfbba7

      SHA256

      c741d649bf5b72fbe97470820ce994ce29b153baae14af10c3a2a9adc3098b32

      SHA512

      c4447f95565d3e5dc0ef7712382325280bedf127ac682f85f4043b586afb4188633f2c73277595eb31fe45d992107492f42c82a71f448286a9cb8fac4bfb3671

    • \Users\Admin\yuupi.exe

      Filesize

      244KB

      MD5

      0f666763f542cd5e7102f7a73bae45b6

      SHA1

      6e6effd59964aa59ab82958d2f68a1fec0ab1e03

      SHA256

      b2f04c36d6045ea3871a6baa64c80f342b81365dcd2bfdf8c1cf192527dc1442

      SHA512

      d30a29d25807795a5d1918fcfc94205e769f2a9e26a3323c0363a657ad1f512684693387401429fcd9133a5603fc29010c52d9b0faab936b7be43beb2d4c2171

    • \Users\Admin\yuupi.exe

      Filesize

      244KB

      MD5

      0f666763f542cd5e7102f7a73bae45b6

      SHA1

      6e6effd59964aa59ab82958d2f68a1fec0ab1e03

      SHA256

      b2f04c36d6045ea3871a6baa64c80f342b81365dcd2bfdf8c1cf192527dc1442

      SHA512

      d30a29d25807795a5d1918fcfc94205e769f2a9e26a3323c0363a657ad1f512684693387401429fcd9133a5603fc29010c52d9b0faab936b7be43beb2d4c2171

    • \Windows\System32\consrv.dll

      Filesize

      53KB

      MD5

      4d7cde615a0f534bd5e359951829554b

      SHA1

      c885d00d9000f2a5dbc78f6193a052b36f4fe968

      SHA256

      414fdf9bdcae5136c1295d6d24740c50a484acd81f1f7d0fb5d5c138607cb80a

      SHA512

      33d632f9fbb694440a1ca568c90518784278efd1dc9ee2b57028149d56ebe1f7346d5b59dcfafee2eeaa10091dda05f48958e909d6bfc891e037ae1cfbd048d4

    • memory/332-136-0x0000000000A70000-0x0000000000A82000-memory.dmp

      Filesize

      72KB

    • memory/828-56-0x0000000075BB1000-0x0000000075BB3000-memory.dmp

      Filesize

      8KB

    • memory/868-154-0x00000000008A0000-0x00000000008A8000-memory.dmp

      Filesize

      32KB

    • memory/868-155-0x00000000008C0000-0x00000000008CB000-memory.dmp

      Filesize

      44KB

    • memory/868-162-0x00000000008A0000-0x00000000008A8000-memory.dmp

      Filesize

      32KB

    • memory/868-163-0x00000000008C0000-0x00000000008CB000-memory.dmp

      Filesize

      44KB

    • memory/868-144-0x00000000008B0000-0x00000000008BB000-memory.dmp

      Filesize

      44KB

    • memory/868-148-0x00000000008B0000-0x00000000008BB000-memory.dmp

      Filesize

      44KB

    • memory/868-152-0x00000000008B0000-0x00000000008BB000-memory.dmp

      Filesize

      44KB

    • memory/1360-121-0x00000000026C0000-0x00000000026C6000-memory.dmp

      Filesize

      24KB

    • memory/1360-125-0x00000000026C0000-0x00000000026C6000-memory.dmp

      Filesize

      24KB

    • memory/1360-129-0x00000000026C0000-0x00000000026C6000-memory.dmp

      Filesize

      24KB

    • memory/1596-83-0x0000000000400000-0x000000000040E000-memory.dmp

      Filesize

      56KB

    • memory/1596-90-0x0000000000400000-0x000000000040E000-memory.dmp

      Filesize

      56KB

    • memory/1596-93-0x0000000000400000-0x000000000040E000-memory.dmp

      Filesize

      56KB

    • memory/1596-82-0x0000000000400000-0x000000000040E000-memory.dmp

      Filesize

      56KB

    • memory/1596-85-0x0000000000400000-0x000000000040E000-memory.dmp

      Filesize

      56KB

    • memory/1596-86-0x0000000000400000-0x000000000040E000-memory.dmp

      Filesize

      56KB

    • memory/1596-91-0x0000000000400000-0x000000000040E000-memory.dmp

      Filesize

      56KB

    • memory/1808-112-0x00000000029E0000-0x0000000002A1D000-memory.dmp

      Filesize

      244KB

    • memory/1808-133-0x00000000029E0000-0x0000000002A1D000-memory.dmp

      Filesize

      244KB

    • memory/1808-130-0x00000000029EE000-0x00000000029F2000-memory.dmp

      Filesize

      16KB

    • memory/1808-131-0x00000000029E1000-0x00000000029EE000-memory.dmp

      Filesize

      52KB

    • memory/1808-119-0x00000000029E0000-0x0000000002A1D000-memory.dmp

      Filesize

      244KB

    • memory/1808-120-0x00000000029E0000-0x0000000002A1D000-memory.dmp

      Filesize

      244KB

    • memory/1808-117-0x00000000029E0000-0x0000000002A1D000-memory.dmp

      Filesize

      244KB

    • memory/1808-140-0x0000000003110000-0x000000000314D000-memory.dmp

      Filesize

      244KB

    • memory/1808-141-0x00000000029E0000-0x0000000002A1D000-memory.dmp

      Filesize

      244KB

    • memory/1808-139-0x0000000000400000-0x0000000000446000-memory.dmp

      Filesize

      280KB

    • memory/1808-106-0x00000000029E0000-0x0000000002A1D000-memory.dmp

      Filesize

      244KB

    • memory/1808-116-0x00000000029E0000-0x0000000002A1D000-memory.dmp

      Filesize

      244KB

    • memory/1808-115-0x00000000029E0000-0x0000000002A1D000-memory.dmp

      Filesize

      244KB

    • memory/1808-114-0x0000000002380000-0x00000000023C6000-memory.dmp

      Filesize

      280KB

    • memory/1808-113-0x0000000000400000-0x0000000000446000-memory.dmp

      Filesize

      280KB

    • memory/1808-132-0x0000000003110000-0x000000000314D000-memory.dmp

      Filesize

      244KB

    • memory/1808-109-0x00000000029E0000-0x0000000002A1D000-memory.dmp

      Filesize

      244KB