Analysis
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max time kernel
150s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
03-11-2024 12:28
Behavioral task
behavioral1
Sample
4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe
Resource
win10v2004-20241007-en
General
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Target
4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe
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Size
90KB
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MD5
20b8ae80b152181549132a0e23f6a580
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SHA1
8365958bd7f9d942ef6e6242c720e3f08eb85982
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SHA256
4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aa
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SHA512
f869dacdc27f0a811aa18324aedf3b13f94a40dd0331350689028b1a914e7af6dee58b3e59ddb683760ff329b0c0245470c686cc301316223087db58cb14f9f3
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SSDEEP
1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y
Malware Config
Signatures
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ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
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Modiloader family
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ModiLoader Second Stage 1 IoCs
Processes:
resource yara_rule behavioral1/memory/832-264-0x0000000000400000-0x0000000000414000-memory.dmp modiloader_stage2 -
Executes dropped EXE 3 IoCs
Processes:
csrsll.execsrsll.execsrsll.exepid Process 2364 csrsll.exe 956 csrsll.exe 832 csrsll.exe -
Loads dropped DLL 5 IoCs
Processes:
4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exepid Process 2776 4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe 2776 4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe 2776 4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe 2776 4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe 2776 4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
reg.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe" reg.exe -
Suspicious use of SetThreadContext 3 IoCs
Processes:
4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.execsrsll.exedescription pid Process procid_target PID 2424 set thread context of 2776 2424 4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe 31 PID 2364 set thread context of 956 2364 csrsll.exe 36 PID 2364 set thread context of 832 2364 csrsll.exe 37 -
Processes:
resource yara_rule behavioral1/memory/2424-0-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2424-82-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2424-79-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2424-73-0x0000000000290000-0x0000000000390000-memory.dmp upx behavioral1/memory/2776-106-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2776-105-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2776-103-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2424-102-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2424-67-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2776-100-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2776-96-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2776-94-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2424-91-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/files/0x000a000000016de4-132.dat upx behavioral1/memory/2364-153-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2776-155-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2364-217-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2364-255-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/832-253-0x0000000000400000-0x0000000000414000-memory.dmp upx behavioral1/memory/2776-262-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/956-263-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/832-264-0x0000000000400000-0x0000000000414000-memory.dmp upx -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 7 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.execmd.exereg.execsrsll.execsrsll.execsrsll.exe4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language csrsll.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language csrsll.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language csrsll.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
csrsll.exedescription pid Process Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe Token: SeDebugPrivilege 956 csrsll.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
Processes:
4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.execsrsll.execsrsll.exepid Process 2424 4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe 2776 4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe 2364 csrsll.exe 956 csrsll.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.execmd.execsrsll.exedescription pid Process procid_target PID 2424 wrote to memory of 2776 2424 4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe 31 PID 2424 wrote to memory of 2776 2424 4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe 31 PID 2424 wrote to memory of 2776 2424 4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe 31 PID 2424 wrote to memory of 2776 2424 4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe 31 PID 2424 wrote to memory of 2776 2424 4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe 31 PID 2424 wrote to memory of 2776 2424 4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe 31 PID 2424 wrote to memory of 2776 2424 4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe 31 PID 2424 wrote to memory of 2776 2424 4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe 31 PID 2776 wrote to memory of 1644 2776 4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe 32 PID 2776 wrote to memory of 1644 2776 4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe 32 PID 2776 wrote to memory of 1644 2776 4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe 32 PID 2776 wrote to memory of 1644 2776 4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe 32 PID 1644 wrote to memory of 2432 1644 cmd.exe 34 PID 1644 wrote to memory of 2432 1644 cmd.exe 34 PID 1644 wrote to memory of 2432 1644 cmd.exe 34 PID 1644 wrote to memory of 2432 1644 cmd.exe 34 PID 2776 wrote to memory of 2364 2776 4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe 35 PID 2776 wrote to memory of 2364 2776 4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe 35 PID 2776 wrote to memory of 2364 2776 4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe 35 PID 2776 wrote to memory of 2364 2776 4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe 35 PID 2364 wrote to memory of 956 2364 csrsll.exe 36 PID 2364 wrote to memory of 956 2364 csrsll.exe 36 PID 2364 wrote to memory of 956 2364 csrsll.exe 36 PID 2364 wrote to memory of 956 2364 csrsll.exe 36 PID 2364 wrote to memory of 956 2364 csrsll.exe 36 PID 2364 wrote to memory of 956 2364 csrsll.exe 36 PID 2364 wrote to memory of 956 2364 csrsll.exe 36 PID 2364 wrote to memory of 956 2364 csrsll.exe 36 PID 2364 wrote to memory of 832 2364 csrsll.exe 37 PID 2364 wrote to memory of 832 2364 csrsll.exe 37 PID 2364 wrote to memory of 832 2364 csrsll.exe 37 PID 2364 wrote to memory of 832 2364 csrsll.exe 37 PID 2364 wrote to memory of 832 2364 csrsll.exe 37 PID 2364 wrote to memory of 832 2364 csrsll.exe 37 PID 2364 wrote to memory of 832 2364 csrsll.exe 37 PID 2364 wrote to memory of 832 2364 csrsll.exe 37
Processes
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C:\Users\Admin\AppData\Local\Temp\4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe"C:\Users\Admin\AppData\Local\Temp\4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2424 -
C:\Users\Admin\AppData\Local\Temp\4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe"C:\Users\Admin\AppData\Local\Temp\4379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aaN.exe"2⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2776 -
C:\Windows\SysWOW64\cmd.execmd /c ""C:\Users\Admin\AppData\Local\Temp\FBPVN.bat" "3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1644 -
C:\Windows\SysWOW64\reg.exeREG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Win Pdf" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe" /f4⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
PID:2432
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C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2364 -
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:956
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C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:832
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
145B
MD54eb61ec7816c34ec8c125acadc57ec1b
SHA1b0015cc865c0bb1a027be663027d3829401a31cc
SHA25608375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff
SHA512f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1
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Filesize
90KB
MD520b8ae80b152181549132a0e23f6a580
SHA18365958bd7f9d942ef6e6242c720e3f08eb85982
SHA2564379b3f395e512a526776d232fdfd4316637072a06bd425376cfb19acfa4f2aa
SHA512f869dacdc27f0a811aa18324aedf3b13f94a40dd0331350689028b1a914e7af6dee58b3e59ddb683760ff329b0c0245470c686cc301316223087db58cb14f9f3