Analysis
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max time kernel
149s -
max time network
128s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
07-05-2024 13:45
Behavioral task
behavioral1
Sample
a99ac28401808fa033018d6986b63b90_NEAS.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
a99ac28401808fa033018d6986b63b90_NEAS.exe
Resource
win10v2004-20240426-en
General
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Target
a99ac28401808fa033018d6986b63b90_NEAS.exe
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Size
90KB
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MD5
a99ac28401808fa033018d6986b63b90
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SHA1
9197a027c083dc643911d88c08ed0060675cc1b8
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SHA256
ba59878f82c80a6d90f304303a59389159f5c95e98920ef2f9d43b8585b3a7e7
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SHA512
46887ce43b29871ef59d97b999816631096b75bbd550c75b3aca091924a3ea4710600708420edc296a0862f7f74c08e5b682a10f72ca87efd91c4f606f0813d4
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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 Second Stage 1 IoCs
Processes:
resource yara_rule behavioral1/memory/2200-266-0x0000000000400000-0x0000000000414000-memory.dmp modiloader_stage2 -
Executes dropped EXE 3 IoCs
Processes:
csrsll.execsrsll.execsrsll.exepid process 1300 csrsll.exe 920 csrsll.exe 2200 csrsll.exe -
Loads dropped DLL 5 IoCs
Processes:
a99ac28401808fa033018d6986b63b90_NEAS.exepid process 560 a99ac28401808fa033018d6986b63b90_NEAS.exe 560 a99ac28401808fa033018d6986b63b90_NEAS.exe 560 a99ac28401808fa033018d6986b63b90_NEAS.exe 560 a99ac28401808fa033018d6986b63b90_NEAS.exe 560 a99ac28401808fa033018d6986b63b90_NEAS.exe -
Processes:
resource yara_rule behavioral1/memory/2256-0-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2256-85-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/560-103-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/560-105-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/560-111-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2256-110-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/560-108-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2256-107-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/560-99-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/560-97-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2256-93-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2256-84-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2256-83-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2256-80-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2256-79-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2256-25-0x0000000000400000-0x0000000000453000-memory.dmp upx C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe upx behavioral1/memory/1300-155-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/560-138-0x0000000002C60000-0x0000000002CB3000-memory.dmp upx behavioral1/memory/560-158-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/560-257-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/1300-253-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2200-251-0x0000000000400000-0x0000000000414000-memory.dmp upx behavioral1/memory/1300-219-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/920-265-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2200-266-0x0000000000400000-0x0000000000414000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
reg.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe" reg.exe -
Suspicious use of SetThreadContext 3 IoCs
Processes:
a99ac28401808fa033018d6986b63b90_NEAS.execsrsll.exedescription pid process target process PID 2256 set thread context of 560 2256 a99ac28401808fa033018d6986b63b90_NEAS.exe a99ac28401808fa033018d6986b63b90_NEAS.exe PID 1300 set thread context of 920 1300 csrsll.exe csrsll.exe PID 1300 set thread context of 2200 1300 csrsll.exe csrsll.exe -
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
Processes:
csrsll.exedescription pid process Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe Token: SeDebugPrivilege 920 csrsll.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
Processes:
a99ac28401808fa033018d6986b63b90_NEAS.exea99ac28401808fa033018d6986b63b90_NEAS.execsrsll.execsrsll.exepid process 2256 a99ac28401808fa033018d6986b63b90_NEAS.exe 560 a99ac28401808fa033018d6986b63b90_NEAS.exe 1300 csrsll.exe 920 csrsll.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
a99ac28401808fa033018d6986b63b90_NEAS.exea99ac28401808fa033018d6986b63b90_NEAS.execmd.execsrsll.exedescription pid process target process PID 2256 wrote to memory of 560 2256 a99ac28401808fa033018d6986b63b90_NEAS.exe a99ac28401808fa033018d6986b63b90_NEAS.exe PID 2256 wrote to memory of 560 2256 a99ac28401808fa033018d6986b63b90_NEAS.exe a99ac28401808fa033018d6986b63b90_NEAS.exe PID 2256 wrote to memory of 560 2256 a99ac28401808fa033018d6986b63b90_NEAS.exe a99ac28401808fa033018d6986b63b90_NEAS.exe PID 2256 wrote to memory of 560 2256 a99ac28401808fa033018d6986b63b90_NEAS.exe a99ac28401808fa033018d6986b63b90_NEAS.exe PID 2256 wrote to memory of 560 2256 a99ac28401808fa033018d6986b63b90_NEAS.exe a99ac28401808fa033018d6986b63b90_NEAS.exe PID 2256 wrote to memory of 560 2256 a99ac28401808fa033018d6986b63b90_NEAS.exe a99ac28401808fa033018d6986b63b90_NEAS.exe PID 2256 wrote to memory of 560 2256 a99ac28401808fa033018d6986b63b90_NEAS.exe a99ac28401808fa033018d6986b63b90_NEAS.exe PID 2256 wrote to memory of 560 2256 a99ac28401808fa033018d6986b63b90_NEAS.exe a99ac28401808fa033018d6986b63b90_NEAS.exe PID 560 wrote to memory of 2712 560 a99ac28401808fa033018d6986b63b90_NEAS.exe cmd.exe PID 560 wrote to memory of 2712 560 a99ac28401808fa033018d6986b63b90_NEAS.exe cmd.exe PID 560 wrote to memory of 2712 560 a99ac28401808fa033018d6986b63b90_NEAS.exe cmd.exe PID 560 wrote to memory of 2712 560 a99ac28401808fa033018d6986b63b90_NEAS.exe cmd.exe PID 2712 wrote to memory of 2128 2712 cmd.exe reg.exe PID 2712 wrote to memory of 2128 2712 cmd.exe reg.exe PID 2712 wrote to memory of 2128 2712 cmd.exe reg.exe PID 2712 wrote to memory of 2128 2712 cmd.exe reg.exe PID 560 wrote to memory of 1300 560 a99ac28401808fa033018d6986b63b90_NEAS.exe csrsll.exe PID 560 wrote to memory of 1300 560 a99ac28401808fa033018d6986b63b90_NEAS.exe csrsll.exe PID 560 wrote to memory of 1300 560 a99ac28401808fa033018d6986b63b90_NEAS.exe csrsll.exe PID 560 wrote to memory of 1300 560 a99ac28401808fa033018d6986b63b90_NEAS.exe csrsll.exe PID 1300 wrote to memory of 920 1300 csrsll.exe csrsll.exe PID 1300 wrote to memory of 920 1300 csrsll.exe csrsll.exe PID 1300 wrote to memory of 920 1300 csrsll.exe csrsll.exe PID 1300 wrote to memory of 920 1300 csrsll.exe csrsll.exe PID 1300 wrote to memory of 920 1300 csrsll.exe csrsll.exe PID 1300 wrote to memory of 920 1300 csrsll.exe csrsll.exe PID 1300 wrote to memory of 920 1300 csrsll.exe csrsll.exe PID 1300 wrote to memory of 920 1300 csrsll.exe csrsll.exe PID 1300 wrote to memory of 2200 1300 csrsll.exe csrsll.exe PID 1300 wrote to memory of 2200 1300 csrsll.exe csrsll.exe PID 1300 wrote to memory of 2200 1300 csrsll.exe csrsll.exe PID 1300 wrote to memory of 2200 1300 csrsll.exe csrsll.exe PID 1300 wrote to memory of 2200 1300 csrsll.exe csrsll.exe PID 1300 wrote to memory of 2200 1300 csrsll.exe csrsll.exe PID 1300 wrote to memory of 2200 1300 csrsll.exe csrsll.exe PID 1300 wrote to memory of 2200 1300 csrsll.exe csrsll.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\a99ac28401808fa033018d6986b63b90_NEAS.exe"C:\Users\Admin\AppData\Local\Temp\a99ac28401808fa033018d6986b63b90_NEAS.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2256 -
C:\Users\Admin\AppData\Local\Temp\a99ac28401808fa033018d6986b63b90_NEAS.exe"C:\Users\Admin\AppData\Local\Temp\a99ac28401808fa033018d6986b63b90_NEAS.exe"2⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:560 -
C:\Windows\SysWOW64\cmd.execmd /c ""C:\Users\Admin\AppData\Local\Temp\UIJEC.bat" "3⤵
- Suspicious use of WriteProcessMemory
PID:2712 -
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:2128 -
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:1300 -
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:920 -
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"4⤵
- Executes dropped EXE
PID:2200
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
MD52974260e7439d4f34a3a5d6ca048318a
SHA1162324584fec9b4dd1a19ccf943a6944116b00e4
SHA256305b141efe374d7b329cd257e3047f702c6406302f6b4e169273d74abfc3be47
SHA512a3c5aed83093321fc94961ad133954d95257866a2c1a95fa4e41937b6e917d0b5f65a556e04bc72999c2ce2630ed0c6dd301cefebd68e80b777cda56e13277aa