Analysis
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max time kernel
149s -
max time network
117s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
06-11-2024 05:14
Behavioral task
behavioral1
Sample
befcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
befcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.exe
Resource
win10v2004-20241007-en
General
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Target
befcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.exe
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Size
90KB
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MD5
860328963ed2e2062e15efef77da5230
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SHA1
ffff57582cef2b19b0509186bb8fc64e959e6cea
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SHA256
befcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696
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SHA512
51fe9fcf3fbd214987439c74018aec1d2f868e5ab01725457e338882e863d89c6ef0485263c2c0e56577c5c475fd98fe1104ace963fdfbc440778789f567b33b
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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/1828-258-0x0000000000400000-0x0000000000414000-memory.dmp modiloader_stage2 -
Executes dropped EXE 3 IoCs
Processes:
csrsll.execsrsll.execsrsll.exepid Process 2032 csrsll.exe 828 csrsll.exe 1828 csrsll.exe -
Loads dropped DLL 5 IoCs
Processes:
befcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.exepid Process 2280 befcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.exe 2280 befcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.exe 2280 befcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.exe 2280 befcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.exe 2280 befcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
reg.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe" reg.exe -
Suspicious use of SetThreadContext 3 IoCs
Processes:
befcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.execsrsll.exedescription pid Process procid_target PID 2096 set thread context of 2280 2096 befcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.exe 31 PID 2032 set thread context of 828 2032 csrsll.exe 36 PID 2032 set thread context of 1828 2032 csrsll.exe 37 -
Processes:
resource yara_rule behavioral1/memory/2096-0-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2096-26-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2096-89-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2096-96-0x0000000002790000-0x00000000027E3000-memory.dmp upx behavioral1/memory/2280-94-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2280-92-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2280-99-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2280-106-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2280-104-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2280-103-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2096-102-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/files/0x0005000000004ed7-147.dat upx behavioral1/memory/2280-146-0x0000000002740000-0x0000000002793000-memory.dmp upx behavioral1/memory/2280-145-0x0000000002740000-0x0000000002793000-memory.dmp upx behavioral1/memory/2280-150-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2032-209-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1828-246-0x0000000000400000-0x0000000000414000-memory.dmp upx behavioral1/memory/828-239-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2032-248-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2280-251-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/828-255-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/1828-258-0x0000000000400000-0x0000000000414000-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:
csrsll.execsrsll.exebefcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.exebefcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.execmd.exereg.execsrsll.exedescription ioc Process 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 befcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language befcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.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 -
Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
csrsll.exedescription pid Process Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe Token: SeDebugPrivilege 828 csrsll.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
Processes:
befcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.exebefcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.execsrsll.execsrsll.exepid Process 2096 befcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.exe 2280 befcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.exe 2032 csrsll.exe 828 csrsll.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
befcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.exebefcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.execmd.execsrsll.exedescription pid Process procid_target PID 2096 wrote to memory of 2280 2096 befcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.exe 31 PID 2096 wrote to memory of 2280 2096 befcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.exe 31 PID 2096 wrote to memory of 2280 2096 befcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.exe 31 PID 2096 wrote to memory of 2280 2096 befcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.exe 31 PID 2096 wrote to memory of 2280 2096 befcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.exe 31 PID 2096 wrote to memory of 2280 2096 befcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.exe 31 PID 2096 wrote to memory of 2280 2096 befcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.exe 31 PID 2096 wrote to memory of 2280 2096 befcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.exe 31 PID 2280 wrote to memory of 1756 2280 befcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.exe 32 PID 2280 wrote to memory of 1756 2280 befcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.exe 32 PID 2280 wrote to memory of 1756 2280 befcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.exe 32 PID 2280 wrote to memory of 1756 2280 befcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.exe 32 PID 1756 wrote to memory of 2036 1756 cmd.exe 34 PID 1756 wrote to memory of 2036 1756 cmd.exe 34 PID 1756 wrote to memory of 2036 1756 cmd.exe 34 PID 1756 wrote to memory of 2036 1756 cmd.exe 34 PID 2280 wrote to memory of 2032 2280 befcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.exe 35 PID 2280 wrote to memory of 2032 2280 befcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.exe 35 PID 2280 wrote to memory of 2032 2280 befcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.exe 35 PID 2280 wrote to memory of 2032 2280 befcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.exe 35 PID 2032 wrote to memory of 828 2032 csrsll.exe 36 PID 2032 wrote to memory of 828 2032 csrsll.exe 36 PID 2032 wrote to memory of 828 2032 csrsll.exe 36 PID 2032 wrote to memory of 828 2032 csrsll.exe 36 PID 2032 wrote to memory of 828 2032 csrsll.exe 36 PID 2032 wrote to memory of 828 2032 csrsll.exe 36 PID 2032 wrote to memory of 828 2032 csrsll.exe 36 PID 2032 wrote to memory of 828 2032 csrsll.exe 36 PID 2032 wrote to memory of 1828 2032 csrsll.exe 37 PID 2032 wrote to memory of 1828 2032 csrsll.exe 37 PID 2032 wrote to memory of 1828 2032 csrsll.exe 37 PID 2032 wrote to memory of 1828 2032 csrsll.exe 37 PID 2032 wrote to memory of 1828 2032 csrsll.exe 37 PID 2032 wrote to memory of 1828 2032 csrsll.exe 37 PID 2032 wrote to memory of 1828 2032 csrsll.exe 37 PID 2032 wrote to memory of 1828 2032 csrsll.exe 37
Processes
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C:\Users\Admin\AppData\Local\Temp\befcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.exe"C:\Users\Admin\AppData\Local\Temp\befcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2096 -
C:\Users\Admin\AppData\Local\Temp\befcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.exe"C:\Users\Admin\AppData\Local\Temp\befcc91c6f3df62fbdc5a8ad308d4077e313608bb3342deb27b536dcb65e5696N.exe"2⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2280 -
C:\Windows\SysWOW64\cmd.execmd /c ""C:\Users\Admin\AppData\Local\Temp\UMBVR.bat" "3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1756 -
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:2036
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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:2032 -
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:828
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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:1828
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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
MD5f5c2931455f71ce6201caec41f18be5e
SHA169c0f1ca018e764d4f90066d27710557e07f57f7
SHA256f9a1472613e2b3333bc4c185e1083cb2d14d704ff683ffc54fad23b3aaf345de
SHA512dc3f9d637e605e4215e50f04dd78d430128033f8385b61b028d965d5e4d2f36771b9e0450c776af629ed54a3f8186f79b7568d8770d3c63e9f60a0d1776171a6