Analysis
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max time kernel
120s -
max time network
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platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
16-12-2024 02:31
Behavioral task
behavioral1
Sample
b55cd6171f50af5929874fe1c983de80e4de8297c08ae2261150e6f06a021370N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
b55cd6171f50af5929874fe1c983de80e4de8297c08ae2261150e6f06a021370N.exe
Resource
win10v2004-20241007-en
General
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Target
b55cd6171f50af5929874fe1c983de80e4de8297c08ae2261150e6f06a021370N.exe
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Size
90KB
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MD5
43d1d647eab32050d7cffa59863d37f0
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SHA1
1bbfbe53288f1be8bbc9391311959e1dda260857
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SHA256
b55cd6171f50af5929874fe1c983de80e4de8297c08ae2261150e6f06a021370
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SHA512
0c7261ca83191fc0b0e12f690a21ef49ecfa0bc590e6f718bf454fa3f45565ade057b54c649f0e4b31c68b46add19c44b68b9ec2944ca8a76438c49038162823
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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 2 IoCs
resource yara_rule behavioral1/memory/1504-254-0x0000000000400000-0x0000000000414000-memory.dmp modiloader_stage2 behavioral1/memory/1504-263-0x0000000000400000-0x0000000000414000-memory.dmp modiloader_stage2 -
Executes dropped EXE 3 IoCs
pid Process 1080 csrsll.exe 1388 csrsll.exe 1504 csrsll.exe -
Loads dropped DLL 5 IoCs
pid Process 2876 b55cd6171f50af5929874fe1c983de80e4de8297c08ae2261150e6f06a021370N.exe 2876 b55cd6171f50af5929874fe1c983de80e4de8297c08ae2261150e6f06a021370N.exe 2876 b55cd6171f50af5929874fe1c983de80e4de8297c08ae2261150e6f06a021370N.exe 2876 b55cd6171f50af5929874fe1c983de80e4de8297c08ae2261150e6f06a021370N.exe 2876 b55cd6171f50af5929874fe1c983de80e4de8297c08ae2261150e6f06a021370N.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\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 2364 set thread context of 2876 2364 b55cd6171f50af5929874fe1c983de80e4de8297c08ae2261150e6f06a021370N.exe 30 PID 1080 set thread context of 1388 1080 csrsll.exe 36 PID 1080 set thread context of 1504 1080 csrsll.exe 37 -
resource yara_rule behavioral1/memory/2364-0-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2364-92-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2364-87-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2364-103-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2876-107-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2876-106-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2876-105-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2876-101-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2876-97-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2876-95-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2364-82-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2876-110-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2364-79-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2364-53-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/files/0x0008000000012117-133.dat upx behavioral1/memory/2876-135-0x0000000003200000-0x0000000003253000-memory.dmp upx behavioral1/memory/2876-155-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/1080-224-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1504-254-0x0000000000400000-0x0000000000414000-memory.dmp upx behavioral1/memory/1080-255-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2876-261-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/1388-262-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/1504-263-0x0000000000400000-0x0000000000414000-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 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 b55cd6171f50af5929874fe1c983de80e4de8297c08ae2261150e6f06a021370N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b55cd6171f50af5929874fe1c983de80e4de8297c08ae2261150e6f06a021370N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe Token: SeDebugPrivilege 1388 csrsll.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 2364 b55cd6171f50af5929874fe1c983de80e4de8297c08ae2261150e6f06a021370N.exe 2876 b55cd6171f50af5929874fe1c983de80e4de8297c08ae2261150e6f06a021370N.exe 1080 csrsll.exe 1388 csrsll.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 2364 wrote to memory of 2876 2364 b55cd6171f50af5929874fe1c983de80e4de8297c08ae2261150e6f06a021370N.exe 30 PID 2364 wrote to memory of 2876 2364 b55cd6171f50af5929874fe1c983de80e4de8297c08ae2261150e6f06a021370N.exe 30 PID 2364 wrote to memory of 2876 2364 b55cd6171f50af5929874fe1c983de80e4de8297c08ae2261150e6f06a021370N.exe 30 PID 2364 wrote to memory of 2876 2364 b55cd6171f50af5929874fe1c983de80e4de8297c08ae2261150e6f06a021370N.exe 30 PID 2364 wrote to memory of 2876 2364 b55cd6171f50af5929874fe1c983de80e4de8297c08ae2261150e6f06a021370N.exe 30 PID 2364 wrote to memory of 2876 2364 b55cd6171f50af5929874fe1c983de80e4de8297c08ae2261150e6f06a021370N.exe 30 PID 2364 wrote to memory of 2876 2364 b55cd6171f50af5929874fe1c983de80e4de8297c08ae2261150e6f06a021370N.exe 30 PID 2364 wrote to memory of 2876 2364 b55cd6171f50af5929874fe1c983de80e4de8297c08ae2261150e6f06a021370N.exe 30 PID 2876 wrote to memory of 852 2876 b55cd6171f50af5929874fe1c983de80e4de8297c08ae2261150e6f06a021370N.exe 31 PID 2876 wrote to memory of 852 2876 b55cd6171f50af5929874fe1c983de80e4de8297c08ae2261150e6f06a021370N.exe 31 PID 2876 wrote to memory of 852 2876 b55cd6171f50af5929874fe1c983de80e4de8297c08ae2261150e6f06a021370N.exe 31 PID 2876 wrote to memory of 852 2876 b55cd6171f50af5929874fe1c983de80e4de8297c08ae2261150e6f06a021370N.exe 31 PID 852 wrote to memory of 2896 852 cmd.exe 33 PID 852 wrote to memory of 2896 852 cmd.exe 33 PID 852 wrote to memory of 2896 852 cmd.exe 33 PID 852 wrote to memory of 2896 852 cmd.exe 33 PID 2876 wrote to memory of 1080 2876 b55cd6171f50af5929874fe1c983de80e4de8297c08ae2261150e6f06a021370N.exe 34 PID 2876 wrote to memory of 1080 2876 b55cd6171f50af5929874fe1c983de80e4de8297c08ae2261150e6f06a021370N.exe 34 PID 2876 wrote to memory of 1080 2876 b55cd6171f50af5929874fe1c983de80e4de8297c08ae2261150e6f06a021370N.exe 34 PID 2876 wrote to memory of 1080 2876 b55cd6171f50af5929874fe1c983de80e4de8297c08ae2261150e6f06a021370N.exe 34 PID 1080 wrote to memory of 1388 1080 csrsll.exe 36 PID 1080 wrote to memory of 1388 1080 csrsll.exe 36 PID 1080 wrote to memory of 1388 1080 csrsll.exe 36 PID 1080 wrote to memory of 1388 1080 csrsll.exe 36 PID 1080 wrote to memory of 1388 1080 csrsll.exe 36 PID 1080 wrote to memory of 1388 1080 csrsll.exe 36 PID 1080 wrote to memory of 1388 1080 csrsll.exe 36 PID 1080 wrote to memory of 1388 1080 csrsll.exe 36 PID 1080 wrote to memory of 1504 1080 csrsll.exe 37 PID 1080 wrote to memory of 1504 1080 csrsll.exe 37 PID 1080 wrote to memory of 1504 1080 csrsll.exe 37 PID 1080 wrote to memory of 1504 1080 csrsll.exe 37 PID 1080 wrote to memory of 1504 1080 csrsll.exe 37 PID 1080 wrote to memory of 1504 1080 csrsll.exe 37 PID 1080 wrote to memory of 1504 1080 csrsll.exe 37 PID 1080 wrote to memory of 1504 1080 csrsll.exe 37
Processes
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C:\Users\Admin\AppData\Local\Temp\b55cd6171f50af5929874fe1c983de80e4de8297c08ae2261150e6f06a021370N.exe"C:\Users\Admin\AppData\Local\Temp\b55cd6171f50af5929874fe1c983de80e4de8297c08ae2261150e6f06a021370N.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2364 -
C:\Users\Admin\AppData\Local\Temp\b55cd6171f50af5929874fe1c983de80e4de8297c08ae2261150e6f06a021370N.exe"C:\Users\Admin\AppData\Local\Temp\b55cd6171f50af5929874fe1c983de80e4de8297c08ae2261150e6f06a021370N.exe"2⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2876 -
C:\Windows\SysWOW64\cmd.execmd /c ""C:\Users\Admin\AppData\Local\Temp\RWCDA.bat" "3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:852 -
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:2896
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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:1080 -
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:1388
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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:1504
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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
MD5303a698577865589b3269e20dbb44150
SHA142a470eb20d655032142ec955440f29e18e76efc
SHA256c959375254b975e6eb11b54f29402422b992dfae99f50256a746c2c66e626941
SHA512542e502a26b139d74a3a462333fb63dbd4d759ac1f3625e5014d8c2f469493a754f4f1e253cdc044727af91d0e2253072d120a68353342bd52680c657210d7c4