Analysis
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max time kernel
150s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
20-05-2024 20:04
Behavioral task
behavioral1
Sample
003dd6fec0a0beb289d7d5ab5db1a7be0e5d817e884949cc83e37070bd813b76.exe
Resource
win7-20240508-en
windows7-x64
13 signatures
150 seconds
Behavioral task
behavioral2
Sample
003dd6fec0a0beb289d7d5ab5db1a7be0e5d817e884949cc83e37070bd813b76.exe
Resource
win10v2004-20240508-en
windows10-2004-x64
12 signatures
150 seconds
General
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Target
003dd6fec0a0beb289d7d5ab5db1a7be0e5d817e884949cc83e37070bd813b76.exe
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Size
69KB
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MD5
4b2749d64840214a4436e83243e44a37
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SHA1
a3c12a438c10a6918114ee780ff28d586d5e856e
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SHA256
003dd6fec0a0beb289d7d5ab5db1a7be0e5d817e884949cc83e37070bd813b76
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SHA512
15ff28f2fc3927679dfa71b3a347f4c06599616301679fe5220975c9530fdd2c2acbc92cd0d810d1f22dfefd67cbad38202a5c4e41696b40ecc1c472d1cc135d
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SSDEEP
1536:EJrFDMRyriCY/qXfatMp4Q2V6fIMxIpLw:0F8dCY85TE6fIMSRw
Score
10/10
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "C:\\Windows\\explorer.exe, c:\\windows\\system\\explorer.exe" explorer.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "C:\\Windows\\explorer.exe, c:\\windows\\system\\explorer.exe" svchost.exe -
Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" svchost.exe -
Modifies Installed Components in the registry 2 TTPs 8 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666} svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\mrsys.exe MR" svchost.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{F146C9B1-VMVQ-A9RC-NUFL-D0BA00B4E999} svchost.exe Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666} explorer.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\mrsys.exe MR" explorer.exe Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{F146C9B1-VMVQ-A9RC-NUFL-D0BA00B4E999} svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{F146C9B1-VMVQ-A9RC-NUFL-D0BA00B4E999}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\mrsys.exe MR" svchost.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666} svchost.exe -
Executes dropped EXE 4 IoCs
pid Process 2216 explorer.exe 2736 spoolsv.exe 2776 svchost.exe 2772 spoolsv.exe -
Loads dropped DLL 8 IoCs
pid Process 1700 003dd6fec0a0beb289d7d5ab5db1a7be0e5d817e884949cc83e37070bd813b76.exe 1700 003dd6fec0a0beb289d7d5ab5db1a7be0e5d817e884949cc83e37070bd813b76.exe 2216 explorer.exe 2216 explorer.exe 2736 spoolsv.exe 2736 spoolsv.exe 2776 svchost.exe 2776 svchost.exe -
resource yara_rule behavioral1/memory/1700-0-0x0000000000400000-0x0000000000434000-memory.dmp upx behavioral1/files/0x0037000000016103-6.dat upx behavioral1/memory/2216-15-0x0000000000400000-0x0000000000434000-memory.dmp upx behavioral1/files/0x000800000001686d-24.dat upx behavioral1/files/0x0008000000016c56-35.dat upx behavioral1/memory/2776-43-0x0000000000400000-0x0000000000434000-memory.dmp upx behavioral1/memory/2772-55-0x0000000000400000-0x0000000000434000-memory.dmp upx behavioral1/memory/2736-58-0x0000000000400000-0x0000000000434000-memory.dmp upx behavioral1/memory/1700-60-0x0000000000400000-0x0000000000434000-memory.dmp upx behavioral1/files/0x000a000000016c7a-61.dat upx behavioral1/memory/2216-62-0x0000000000400000-0x0000000000434000-memory.dmp upx behavioral1/memory/2776-64-0x0000000000400000-0x0000000000434000-memory.dmp upx behavioral1/memory/2216-73-0x0000000000400000-0x0000000000434000-memory.dmp upx -
Adds Run key to start application 2 TTPs 4 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\system\\explorer.exe RO" explorer.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\system\\svchost.exe RO" explorer.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\system\\explorer.exe RO" svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\system\\svchost.exe RO" svchost.exe -
Drops file in Windows directory 6 IoCs
description ioc Process File opened for modification \??\c:\windows\system\explorer.exe explorer.exe File opened for modification \??\c:\windows\system\svchost.exe svchost.exe File opened for modification C:\Windows\system\udsys.exe explorer.exe File opened for modification \??\c:\windows\system\explorer.exe 003dd6fec0a0beb289d7d5ab5db1a7be0e5d817e884949cc83e37070bd813b76.exe File opened for modification \??\c:\windows\system\spoolsv.exe explorer.exe File opened for modification \??\c:\windows\system\svchost.exe spoolsv.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1700 003dd6fec0a0beb289d7d5ab5db1a7be0e5d817e884949cc83e37070bd813b76.exe 2216 explorer.exe 2216 explorer.exe 2216 explorer.exe 2216 explorer.exe 2776 svchost.exe 2776 svchost.exe 2216 explorer.exe 2776 svchost.exe 2216 explorer.exe 2776 svchost.exe 2216 explorer.exe 2776 svchost.exe 2216 explorer.exe 2776 svchost.exe 2216 explorer.exe 2776 svchost.exe 2216 explorer.exe 2776 svchost.exe 2216 explorer.exe 2776 svchost.exe 2216 explorer.exe 2776 svchost.exe 2216 explorer.exe 2776 svchost.exe 2216 explorer.exe 2776 svchost.exe 2216 explorer.exe 2776 svchost.exe 2216 explorer.exe 2776 svchost.exe 2216 explorer.exe 2776 svchost.exe 2216 explorer.exe 2776 svchost.exe 2216 explorer.exe 2776 svchost.exe 2216 explorer.exe 2776 svchost.exe 2216 explorer.exe 2776 svchost.exe 2216 explorer.exe 2776 svchost.exe 2216 explorer.exe 2776 svchost.exe 2216 explorer.exe 2776 svchost.exe 2216 explorer.exe 2776 svchost.exe 2216 explorer.exe 2776 svchost.exe 2216 explorer.exe 2776 svchost.exe 2216 explorer.exe 2776 svchost.exe 2216 explorer.exe 2776 svchost.exe 2216 explorer.exe 2776 svchost.exe 2216 explorer.exe 2776 svchost.exe 2216 explorer.exe 2776 svchost.exe 2216 explorer.exe -
Suspicious behavior: GetForegroundWindowSpam 2 IoCs
pid Process 2216 explorer.exe 2776 svchost.exe -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 1700 003dd6fec0a0beb289d7d5ab5db1a7be0e5d817e884949cc83e37070bd813b76.exe 1700 003dd6fec0a0beb289d7d5ab5db1a7be0e5d817e884949cc83e37070bd813b76.exe 2216 explorer.exe 2216 explorer.exe 2736 spoolsv.exe 2736 spoolsv.exe 2776 svchost.exe 2776 svchost.exe 2772 spoolsv.exe 2772 spoolsv.exe 2216 explorer.exe 2216 explorer.exe -
Suspicious use of WriteProcessMemory 28 IoCs
description pid Process procid_target PID 1700 wrote to memory of 2216 1700 003dd6fec0a0beb289d7d5ab5db1a7be0e5d817e884949cc83e37070bd813b76.exe 28 PID 1700 wrote to memory of 2216 1700 003dd6fec0a0beb289d7d5ab5db1a7be0e5d817e884949cc83e37070bd813b76.exe 28 PID 1700 wrote to memory of 2216 1700 003dd6fec0a0beb289d7d5ab5db1a7be0e5d817e884949cc83e37070bd813b76.exe 28 PID 1700 wrote to memory of 2216 1700 003dd6fec0a0beb289d7d5ab5db1a7be0e5d817e884949cc83e37070bd813b76.exe 28 PID 2216 wrote to memory of 2736 2216 explorer.exe 29 PID 2216 wrote to memory of 2736 2216 explorer.exe 29 PID 2216 wrote to memory of 2736 2216 explorer.exe 29 PID 2216 wrote to memory of 2736 2216 explorer.exe 29 PID 2736 wrote to memory of 2776 2736 spoolsv.exe 30 PID 2736 wrote to memory of 2776 2736 spoolsv.exe 30 PID 2736 wrote to memory of 2776 2736 spoolsv.exe 30 PID 2736 wrote to memory of 2776 2736 spoolsv.exe 30 PID 2776 wrote to memory of 2772 2776 svchost.exe 31 PID 2776 wrote to memory of 2772 2776 svchost.exe 31 PID 2776 wrote to memory of 2772 2776 svchost.exe 31 PID 2776 wrote to memory of 2772 2776 svchost.exe 31 PID 2776 wrote to memory of 2572 2776 svchost.exe 32 PID 2776 wrote to memory of 2572 2776 svchost.exe 32 PID 2776 wrote to memory of 2572 2776 svchost.exe 32 PID 2776 wrote to memory of 2572 2776 svchost.exe 32 PID 2776 wrote to memory of 1216 2776 svchost.exe 36 PID 2776 wrote to memory of 1216 2776 svchost.exe 36 PID 2776 wrote to memory of 1216 2776 svchost.exe 36 PID 2776 wrote to memory of 1216 2776 svchost.exe 36 PID 2776 wrote to memory of 1492 2776 svchost.exe 38 PID 2776 wrote to memory of 1492 2776 svchost.exe 38 PID 2776 wrote to memory of 1492 2776 svchost.exe 38 PID 2776 wrote to memory of 1492 2776 svchost.exe 38
Processes
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C:\Users\Admin\AppData\Local\Temp\003dd6fec0a0beb289d7d5ab5db1a7be0e5d817e884949cc83e37070bd813b76.exe"C:\Users\Admin\AppData\Local\Temp\003dd6fec0a0beb289d7d5ab5db1a7be0e5d817e884949cc83e37070bd813b76.exe"1⤵
- Loads dropped DLL
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1700 -
\??\c:\windows\system\explorer.exec:\windows\system\explorer.exe2⤵
- Modifies WinLogon for persistence
- Modifies visiblity of hidden/system files in Explorer
- Modifies Installed Components in the registry
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2216 -
\??\c:\windows\system\spoolsv.exec:\windows\system\spoolsv.exe SE3⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2736 -
\??\c:\windows\system\svchost.exec:\windows\system\svchost.exe4⤵
- Modifies WinLogon for persistence
- Modifies visiblity of hidden/system files in Explorer
- Modifies Installed Components in the registry
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2776 -
\??\c:\windows\system\spoolsv.exec:\windows\system\spoolsv.exe PR5⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:2772
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C:\Windows\SysWOW64\at.exeat 20:44 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe5⤵PID:2572
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C:\Windows\SysWOW64\at.exeat 20:45 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe5⤵PID:1216
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C:\Windows\SysWOW64\at.exeat 20:46 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe5⤵PID:1492
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Replay Monitor
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Downloads
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Filesize
69KB
MD553e058eb67d27919d22ad823509d000d
SHA1e870cc70d8cd11eb9e78e4bdec7c50af6e4cf0ce
SHA256268fe1b08b458e1f3b44e55f0a0b2b1271b152a0ed6da6390496d38b93d82e02
SHA51230afcbe9df6f62c5b0d9dfe8bbcc2b1f38a831cfef968860229ca8d19df5f853e9866d0ffcef1ef6cb8400934a74dfffa5caaa3ffc108ea83ef718647e2237c1
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Filesize
69KB
MD5659caf2e796eb60dd7496e62a846468c
SHA15dd91df4c4a9629ca1225ad7034fe7a59f25b664
SHA2568f3dc14051f6dcb7266e972a7aeeb1deba5c2b81583edb509a336964b44d2373
SHA512bb37c80c989acb2d620f060ad89b451a07fbecf2d615e7915770a0fea9d49bc3797927d4fbb7050fed39c26fb60ee74cca072c8bbeea2b5502a1ea3a43336400
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Filesize
69KB
MD586232b41d7f23c26db25a95be58c9af8
SHA186c77796a1fe16a74bdf1646640b6e44d664c82d
SHA256711b006cec41678a3c95617f11223a810f6574cda2fec34771b20c3a9ceb48ad
SHA512a57547bcd80d6a0c3e809f2c3825a0f8257453032b57b2072e842342c60b59f65565e6d6bd21efbeafd81cdbaa746a92fb497d55ff805e97dd8147feaa665198
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Filesize
69KB
MD56245eb795942fb4b2ef1489007805131
SHA1d613b54f882ca3d0420fc0e77b4723238adcdf5c
SHA256a0e7aee1107f7cf895e8bda11e3ad7d2b12367cedcdeaa2373c38d5aae52a8dd
SHA5120899c6c5249d22ece659e4bcd11c47e21f53265003145abf28b6dfa29b4d7b420dca516fbe925fe5d86158adff1235fea1c14d6e398bd0d30a4fe6af024a2af3