Analysis
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max time kernel
119s -
max time network
17s -
platform
windows7_x64 -
resource
win7-20240729-en -
resource tags
arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system -
submitted
05-12-2024 14:32
Behavioral task
behavioral1
Sample
b1fc74d040e17299c68f623d8c79a9020d96bff1cad018e6d3f7bcf8f944e09bN.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
b1fc74d040e17299c68f623d8c79a9020d96bff1cad018e6d3f7bcf8f944e09bN.exe
Resource
win10v2004-20241007-en
General
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Target
b1fc74d040e17299c68f623d8c79a9020d96bff1cad018e6d3f7bcf8f944e09bN.exe
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Size
90KB
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MD5
0346327d1efe41a3bab7acfa1895e570
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SHA1
e1dba79b86fb2c5f4b696bb1923d1801ec546ff1
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SHA256
b1fc74d040e17299c68f623d8c79a9020d96bff1cad018e6d3f7bcf8f944e09b
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SHA512
f4ec455f632a52ca3e646c94a4141e9c0f95c03945ce9f1fd03c30aa6d4e015f396a92c99121305be50beaff5c1d25b22b24bf93317fd43f9c99d9de2f077eec
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SSDEEP
1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDT:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3d
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
resource yara_rule behavioral1/memory/1868-267-0x0000000000400000-0x0000000000414000-memory.dmp modiloader_stage2 -
Executes dropped EXE 3 IoCs
pid Process 2208 csrsll.exe 684 csrsll.exe 1868 csrsll.exe -
Loads dropped DLL 5 IoCs
pid Process 1696 b1fc74d040e17299c68f623d8c79a9020d96bff1cad018e6d3f7bcf8f944e09bN.exe 1696 b1fc74d040e17299c68f623d8c79a9020d96bff1cad018e6d3f7bcf8f944e09bN.exe 1696 b1fc74d040e17299c68f623d8c79a9020d96bff1cad018e6d3f7bcf8f944e09bN.exe 1696 b1fc74d040e17299c68f623d8c79a9020d96bff1cad018e6d3f7bcf8f944e09bN.exe 1696 b1fc74d040e17299c68f623d8c79a9020d96bff1cad018e6d3f7bcf8f944e09bN.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe" reg.exe -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 2464 set thread context of 1696 2464 b1fc74d040e17299c68f623d8c79a9020d96bff1cad018e6d3f7bcf8f944e09bN.exe 30 PID 2208 set thread context of 684 2208 csrsll.exe 35 PID 2208 set thread context of 1868 2208 csrsll.exe 36 -
resource yara_rule behavioral1/memory/2464-0-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2464-92-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1696-101-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/1696-105-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2464-103-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1696-97-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/1696-95-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2464-88-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2464-82-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2464-79-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2464-75-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1696-106-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/1696-109-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/1696-107-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/files/0x00090000000120fd-134.dat upx behavioral1/memory/1696-136-0x00000000028F0000-0x0000000002943000-memory.dmp upx behavioral1/memory/1696-156-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2208-228-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/684-251-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/1868-255-0x0000000000400000-0x0000000000414000-memory.dmp upx behavioral1/memory/1696-260-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2208-257-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/684-264-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/1868-267-0x0000000000400000-0x0000000000414000-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.
description ioc Process 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 b1fc74d040e17299c68f623d8c79a9020d96bff1cad018e6d3f7bcf8f944e09bN.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b1fc74d040e17299c68f623d8c79a9020d96bff1cad018e6d3f7bcf8f944e09bN.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe Token: SeDebugPrivilege 684 csrsll.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 2464 b1fc74d040e17299c68f623d8c79a9020d96bff1cad018e6d3f7bcf8f944e09bN.exe 1696 b1fc74d040e17299c68f623d8c79a9020d96bff1cad018e6d3f7bcf8f944e09bN.exe 2208 csrsll.exe 684 csrsll.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 2464 wrote to memory of 1696 2464 b1fc74d040e17299c68f623d8c79a9020d96bff1cad018e6d3f7bcf8f944e09bN.exe 30 PID 2464 wrote to memory of 1696 2464 b1fc74d040e17299c68f623d8c79a9020d96bff1cad018e6d3f7bcf8f944e09bN.exe 30 PID 2464 wrote to memory of 1696 2464 b1fc74d040e17299c68f623d8c79a9020d96bff1cad018e6d3f7bcf8f944e09bN.exe 30 PID 2464 wrote to memory of 1696 2464 b1fc74d040e17299c68f623d8c79a9020d96bff1cad018e6d3f7bcf8f944e09bN.exe 30 PID 2464 wrote to memory of 1696 2464 b1fc74d040e17299c68f623d8c79a9020d96bff1cad018e6d3f7bcf8f944e09bN.exe 30 PID 2464 wrote to memory of 1696 2464 b1fc74d040e17299c68f623d8c79a9020d96bff1cad018e6d3f7bcf8f944e09bN.exe 30 PID 2464 wrote to memory of 1696 2464 b1fc74d040e17299c68f623d8c79a9020d96bff1cad018e6d3f7bcf8f944e09bN.exe 30 PID 2464 wrote to memory of 1696 2464 b1fc74d040e17299c68f623d8c79a9020d96bff1cad018e6d3f7bcf8f944e09bN.exe 30 PID 1696 wrote to memory of 2596 1696 b1fc74d040e17299c68f623d8c79a9020d96bff1cad018e6d3f7bcf8f944e09bN.exe 31 PID 1696 wrote to memory of 2596 1696 b1fc74d040e17299c68f623d8c79a9020d96bff1cad018e6d3f7bcf8f944e09bN.exe 31 PID 1696 wrote to memory of 2596 1696 b1fc74d040e17299c68f623d8c79a9020d96bff1cad018e6d3f7bcf8f944e09bN.exe 31 PID 1696 wrote to memory of 2596 1696 b1fc74d040e17299c68f623d8c79a9020d96bff1cad018e6d3f7bcf8f944e09bN.exe 31 PID 2596 wrote to memory of 2984 2596 cmd.exe 33 PID 2596 wrote to memory of 2984 2596 cmd.exe 33 PID 2596 wrote to memory of 2984 2596 cmd.exe 33 PID 2596 wrote to memory of 2984 2596 cmd.exe 33 PID 1696 wrote to memory of 2208 1696 b1fc74d040e17299c68f623d8c79a9020d96bff1cad018e6d3f7bcf8f944e09bN.exe 34 PID 1696 wrote to memory of 2208 1696 b1fc74d040e17299c68f623d8c79a9020d96bff1cad018e6d3f7bcf8f944e09bN.exe 34 PID 1696 wrote to memory of 2208 1696 b1fc74d040e17299c68f623d8c79a9020d96bff1cad018e6d3f7bcf8f944e09bN.exe 34 PID 1696 wrote to memory of 2208 1696 b1fc74d040e17299c68f623d8c79a9020d96bff1cad018e6d3f7bcf8f944e09bN.exe 34 PID 2208 wrote to memory of 684 2208 csrsll.exe 35 PID 2208 wrote to memory of 684 2208 csrsll.exe 35 PID 2208 wrote to memory of 684 2208 csrsll.exe 35 PID 2208 wrote to memory of 684 2208 csrsll.exe 35 PID 2208 wrote to memory of 684 2208 csrsll.exe 35 PID 2208 wrote to memory of 684 2208 csrsll.exe 35 PID 2208 wrote to memory of 684 2208 csrsll.exe 35 PID 2208 wrote to memory of 684 2208 csrsll.exe 35 PID 2208 wrote to memory of 1868 2208 csrsll.exe 36 PID 2208 wrote to memory of 1868 2208 csrsll.exe 36 PID 2208 wrote to memory of 1868 2208 csrsll.exe 36 PID 2208 wrote to memory of 1868 2208 csrsll.exe 36 PID 2208 wrote to memory of 1868 2208 csrsll.exe 36 PID 2208 wrote to memory of 1868 2208 csrsll.exe 36 PID 2208 wrote to memory of 1868 2208 csrsll.exe 36 PID 2208 wrote to memory of 1868 2208 csrsll.exe 36
Processes
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C:\Users\Admin\AppData\Local\Temp\b1fc74d040e17299c68f623d8c79a9020d96bff1cad018e6d3f7bcf8f944e09bN.exe"C:\Users\Admin\AppData\Local\Temp\b1fc74d040e17299c68f623d8c79a9020d96bff1cad018e6d3f7bcf8f944e09bN.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2464 -
C:\Users\Admin\AppData\Local\Temp\b1fc74d040e17299c68f623d8c79a9020d96bff1cad018e6d3f7bcf8f944e09bN.exe"C:\Users\Admin\AppData\Local\Temp\b1fc74d040e17299c68f623d8c79a9020d96bff1cad018e6d3f7bcf8f944e09bN.exe"2⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1696 -
C:\Windows\SysWOW64\cmd.execmd /c ""C:\Users\Admin\AppData\Local\Temp\HDYCP.bat" "3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2596 -
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:2984
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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:2208 -
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:684
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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:1868
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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
MD520806ab3c7298cf442f3ae72017d3471
SHA14385f66af17dbea5ea3476fb3929d6034cf234b9
SHA25681cf56de817123391603eb0f9d9c00fd243c80b517323e6428b5d42e81e7c277
SHA512d6a996aa0a069b8dcec67349c0d0eb717b2d8c3f7242adeaea54a1992df1d6cc7db508dbadbd76e357378d64d94179268f58eb984abdd4ddd844876584c88b47