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Analysis
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max time kernel
149s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
04/06/2024, 23:12
Behavioral task
behavioral1
Sample
75e7be8f467d55b479d346a0d45e91b7589b20fca4292c21a62f03c775424fc2.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
75e7be8f467d55b479d346a0d45e91b7589b20fca4292c21a62f03c775424fc2.exe
Resource
win10v2004-20240508-en
General
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Target
75e7be8f467d55b479d346a0d45e91b7589b20fca4292c21a62f03c775424fc2.exe
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Size
90KB
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MD5
7ae1b36cec224de2d9828f0218890fc2
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SHA1
5f386a32e1d2817540c61807c2a88a103b59a0ac
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SHA256
75e7be8f467d55b479d346a0d45e91b7589b20fca4292c21a62f03c775424fc2
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SHA512
bf35e301e5b822d3dbe543074f5fe7dc177324e40fbea20f67e94880fa7c53b11adf88b3cd574c8b00f69a5512ee9b9147b6300b383bf866072733e9002734c4
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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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Detects Windows executables referencing non-Windows User-Agents 1 IoCs
resource yara_rule behavioral1/memory/648-260-0x0000000000400000-0x0000000000414000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA -
ModiLoader Second Stage 1 IoCs
resource yara_rule behavioral1/memory/648-260-0x0000000000400000-0x0000000000414000-memory.dmp modiloader_stage2 -
UPX dump on OEP (original entry point) 22 IoCs
resource yara_rule behavioral1/memory/2220-0-0x0000000000400000-0x0000000000453000-memory.dmp UPX behavioral1/memory/2220-78-0x0000000000400000-0x0000000000453000-memory.dmp UPX behavioral1/memory/2220-85-0x0000000000400000-0x0000000000453000-memory.dmp UPX behavioral1/memory/2220-92-0x0000000000400000-0x0000000000453000-memory.dmp UPX behavioral1/memory/2220-82-0x0000000000400000-0x0000000000453000-memory.dmp UPX behavioral1/memory/2220-81-0x0000000000400000-0x0000000000453000-memory.dmp UPX behavioral1/memory/3056-107-0x0000000000400000-0x000000000040B000-memory.dmp UPX behavioral1/memory/3056-105-0x0000000000400000-0x000000000040B000-memory.dmp UPX behavioral1/memory/3056-104-0x0000000000400000-0x000000000040B000-memory.dmp UPX behavioral1/memory/3056-102-0x0000000000400000-0x000000000040B000-memory.dmp UPX behavioral1/memory/3056-98-0x0000000000400000-0x000000000040B000-memory.dmp UPX behavioral1/memory/2220-109-0x0000000000400000-0x0000000000453000-memory.dmp UPX behavioral1/files/0x000d0000000155f7-134.dat UPX behavioral1/memory/3056-150-0x0000000003480000-0x00000000034D3000-memory.dmp UPX behavioral1/memory/2448-151-0x0000000000400000-0x0000000000453000-memory.dmp UPX behavioral1/memory/3056-149-0x0000000003480000-0x00000000034D3000-memory.dmp UPX behavioral1/memory/648-245-0x0000000000400000-0x0000000000414000-memory.dmp UPX behavioral1/memory/2448-244-0x0000000000400000-0x0000000000453000-memory.dmp UPX behavioral1/memory/2448-250-0x0000000000400000-0x0000000000453000-memory.dmp UPX behavioral1/memory/3056-253-0x0000000000400000-0x000000000040B000-memory.dmp UPX behavioral1/memory/648-260-0x0000000000400000-0x0000000000414000-memory.dmp UPX behavioral1/memory/1508-261-0x0000000000400000-0x000000000040B000-memory.dmp UPX -
Executes dropped EXE 3 IoCs
pid Process 2448 csrsll.exe 1508 csrsll.exe 648 csrsll.exe -
Loads dropped DLL 5 IoCs
pid Process 3056 75e7be8f467d55b479d346a0d45e91b7589b20fca4292c21a62f03c775424fc2.exe 3056 75e7be8f467d55b479d346a0d45e91b7589b20fca4292c21a62f03c775424fc2.exe 3056 75e7be8f467d55b479d346a0d45e91b7589b20fca4292c21a62f03c775424fc2.exe 3056 75e7be8f467d55b479d346a0d45e91b7589b20fca4292c21a62f03c775424fc2.exe 3056 75e7be8f467d55b479d346a0d45e91b7589b20fca4292c21a62f03c775424fc2.exe -
resource yara_rule behavioral1/memory/2220-0-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2220-78-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2220-85-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2220-92-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2220-82-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2220-81-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/3056-107-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/3056-105-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/3056-104-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/3056-102-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/3056-98-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2220-109-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/3056-96-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/files/0x000d0000000155f7-134.dat upx behavioral1/memory/3056-150-0x0000000003480000-0x00000000034D3000-memory.dmp upx behavioral1/memory/2448-151-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/3056-149-0x0000000003480000-0x00000000034D3000-memory.dmp upx behavioral1/memory/648-245-0x0000000000400000-0x0000000000414000-memory.dmp upx behavioral1/memory/2448-244-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2448-250-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/3056-253-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/648-260-0x0000000000400000-0x0000000000414000-memory.dmp upx behavioral1/memory/1508-261-0x0000000000400000-0x000000000040B000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\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 2220 set thread context of 3056 2220 75e7be8f467d55b479d346a0d45e91b7589b20fca4292c21a62f03c775424fc2.exe 28 PID 2448 set thread context of 1508 2448 csrsll.exe 33 PID 2448 set thread context of 648 2448 csrsll.exe 34 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe Token: SeDebugPrivilege 1508 csrsll.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 2220 75e7be8f467d55b479d346a0d45e91b7589b20fca4292c21a62f03c775424fc2.exe 3056 75e7be8f467d55b479d346a0d45e91b7589b20fca4292c21a62f03c775424fc2.exe 2448 csrsll.exe 1508 csrsll.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 2220 wrote to memory of 3056 2220 75e7be8f467d55b479d346a0d45e91b7589b20fca4292c21a62f03c775424fc2.exe 28 PID 2220 wrote to memory of 3056 2220 75e7be8f467d55b479d346a0d45e91b7589b20fca4292c21a62f03c775424fc2.exe 28 PID 2220 wrote to memory of 3056 2220 75e7be8f467d55b479d346a0d45e91b7589b20fca4292c21a62f03c775424fc2.exe 28 PID 2220 wrote to memory of 3056 2220 75e7be8f467d55b479d346a0d45e91b7589b20fca4292c21a62f03c775424fc2.exe 28 PID 2220 wrote to memory of 3056 2220 75e7be8f467d55b479d346a0d45e91b7589b20fca4292c21a62f03c775424fc2.exe 28 PID 2220 wrote to memory of 3056 2220 75e7be8f467d55b479d346a0d45e91b7589b20fca4292c21a62f03c775424fc2.exe 28 PID 2220 wrote to memory of 3056 2220 75e7be8f467d55b479d346a0d45e91b7589b20fca4292c21a62f03c775424fc2.exe 28 PID 2220 wrote to memory of 3056 2220 75e7be8f467d55b479d346a0d45e91b7589b20fca4292c21a62f03c775424fc2.exe 28 PID 3056 wrote to memory of 1968 3056 75e7be8f467d55b479d346a0d45e91b7589b20fca4292c21a62f03c775424fc2.exe 29 PID 3056 wrote to memory of 1968 3056 75e7be8f467d55b479d346a0d45e91b7589b20fca4292c21a62f03c775424fc2.exe 29 PID 3056 wrote to memory of 1968 3056 75e7be8f467d55b479d346a0d45e91b7589b20fca4292c21a62f03c775424fc2.exe 29 PID 3056 wrote to memory of 1968 3056 75e7be8f467d55b479d346a0d45e91b7589b20fca4292c21a62f03c775424fc2.exe 29 PID 1968 wrote to memory of 2192 1968 cmd.exe 31 PID 1968 wrote to memory of 2192 1968 cmd.exe 31 PID 1968 wrote to memory of 2192 1968 cmd.exe 31 PID 1968 wrote to memory of 2192 1968 cmd.exe 31 PID 3056 wrote to memory of 2448 3056 75e7be8f467d55b479d346a0d45e91b7589b20fca4292c21a62f03c775424fc2.exe 32 PID 3056 wrote to memory of 2448 3056 75e7be8f467d55b479d346a0d45e91b7589b20fca4292c21a62f03c775424fc2.exe 32 PID 3056 wrote to memory of 2448 3056 75e7be8f467d55b479d346a0d45e91b7589b20fca4292c21a62f03c775424fc2.exe 32 PID 3056 wrote to memory of 2448 3056 75e7be8f467d55b479d346a0d45e91b7589b20fca4292c21a62f03c775424fc2.exe 32 PID 2448 wrote to memory of 1508 2448 csrsll.exe 33 PID 2448 wrote to memory of 1508 2448 csrsll.exe 33 PID 2448 wrote to memory of 1508 2448 csrsll.exe 33 PID 2448 wrote to memory of 1508 2448 csrsll.exe 33 PID 2448 wrote to memory of 1508 2448 csrsll.exe 33 PID 2448 wrote to memory of 1508 2448 csrsll.exe 33 PID 2448 wrote to memory of 1508 2448 csrsll.exe 33 PID 2448 wrote to memory of 1508 2448 csrsll.exe 33 PID 2448 wrote to memory of 648 2448 csrsll.exe 34 PID 2448 wrote to memory of 648 2448 csrsll.exe 34 PID 2448 wrote to memory of 648 2448 csrsll.exe 34 PID 2448 wrote to memory of 648 2448 csrsll.exe 34 PID 2448 wrote to memory of 648 2448 csrsll.exe 34 PID 2448 wrote to memory of 648 2448 csrsll.exe 34 PID 2448 wrote to memory of 648 2448 csrsll.exe 34 PID 2448 wrote to memory of 648 2448 csrsll.exe 34
Processes
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C:\Users\Admin\AppData\Local\Temp\75e7be8f467d55b479d346a0d45e91b7589b20fca4292c21a62f03c775424fc2.exe"C:\Users\Admin\AppData\Local\Temp\75e7be8f467d55b479d346a0d45e91b7589b20fca4292c21a62f03c775424fc2.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2220 -
C:\Users\Admin\AppData\Local\Temp\75e7be8f467d55b479d346a0d45e91b7589b20fca4292c21a62f03c775424fc2.exe"C:\Users\Admin\AppData\Local\Temp\75e7be8f467d55b479d346a0d45e91b7589b20fca4292c21a62f03c775424fc2.exe"2⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3056 -
C:\Windows\SysWOW64\cmd.execmd /c ""C:\Users\Admin\AppData\Local\Temp\CHVUG.bat" "3⤵
- Suspicious use of WriteProcessMemory
PID:1968 -
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
PID:2192
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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
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2448 -
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"4⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1508
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C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"4⤵
- Executes dropped EXE
PID:648
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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
MD50afb7808392ef2ca4b917863016585c5
SHA1c9d78c469334d23b22ec128b1314cb4fc7e40ace
SHA2561fecd7014681649cdad3407388e6bca3f8fcee029d54298600fa703c6a1e6c30
SHA51211597b711b1ef6fc07e1b143848c2c7632ec220a7c5844e9e226967fd4fa1a2bf42da5d90556da77e469506a82b41cce51308aa2156821c4c3349590d940412e