Analysis
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max time kernel
119s -
max time network
20s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
20-09-2024 22:46
Behavioral task
behavioral1
Sample
bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe
Resource
win10v2004-20240802-en
General
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Target
bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe
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Size
90KB
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MD5
b56ab0ec1a1d308b6589aa919500c790
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SHA1
a3a983a22a217e29e9a6891324de941824d2bbdb
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SHA256
bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5
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SHA512
ed9f29cd91a3fd00856ca9edb48c9da73acba42073bbbd692fffe96511611d0c54abb238f38f2cb37063655b6fe43ebb6be12af894c59a3c87e386c4f72acfef
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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
resource yara_rule behavioral1/memory/1160-266-0x0000000000400000-0x0000000000414000-memory.dmp modiloader_stage2 -
Executes dropped EXE 3 IoCs
pid Process 640 csrsll.exe 2512 csrsll.exe 1160 csrsll.exe -
Loads dropped DLL 5 IoCs
pid Process 2664 bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe 2664 bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe 2664 bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe 2664 bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe 2664 bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe -
resource yara_rule behavioral1/memory/1940-0-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1940-93-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1940-84-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2664-102-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2664-108-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2664-107-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2664-106-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/1940-104-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2664-98-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2664-96-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/1940-83-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1940-80-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1940-63-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1940-33-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/files/0x0005000000004ed7-133.dat upx behavioral1/memory/2664-135-0x0000000001F20000-0x0000000001F73000-memory.dmp upx behavioral1/memory/2664-155-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/640-215-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2512-237-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/1160-254-0x0000000000400000-0x0000000000414000-memory.dmp upx behavioral1/memory/640-257-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2664-262-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2512-263-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/1160-266-0x0000000000400000-0x0000000000414000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\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 1940 set thread context of 2664 1940 bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe 31 PID 640 set thread context of 2512 640 csrsll.exe 36 PID 640 set thread context of 1160 640 csrsll.exe 37 -
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 cmd.exe 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 bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe Token: SeDebugPrivilege 2512 csrsll.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 1940 bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe 2664 bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe 640 csrsll.exe 2512 csrsll.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1940 wrote to memory of 2664 1940 bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe 31 PID 1940 wrote to memory of 2664 1940 bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe 31 PID 1940 wrote to memory of 2664 1940 bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe 31 PID 1940 wrote to memory of 2664 1940 bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe 31 PID 1940 wrote to memory of 2664 1940 bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe 31 PID 1940 wrote to memory of 2664 1940 bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe 31 PID 1940 wrote to memory of 2664 1940 bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe 31 PID 1940 wrote to memory of 2664 1940 bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe 31 PID 2664 wrote to memory of 2272 2664 bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe 32 PID 2664 wrote to memory of 2272 2664 bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe 32 PID 2664 wrote to memory of 2272 2664 bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe 32 PID 2664 wrote to memory of 2272 2664 bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe 32 PID 2272 wrote to memory of 1088 2272 cmd.exe 34 PID 2272 wrote to memory of 1088 2272 cmd.exe 34 PID 2272 wrote to memory of 1088 2272 cmd.exe 34 PID 2272 wrote to memory of 1088 2272 cmd.exe 34 PID 2664 wrote to memory of 640 2664 bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe 35 PID 2664 wrote to memory of 640 2664 bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe 35 PID 2664 wrote to memory of 640 2664 bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe 35 PID 2664 wrote to memory of 640 2664 bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe 35 PID 640 wrote to memory of 2512 640 csrsll.exe 36 PID 640 wrote to memory of 2512 640 csrsll.exe 36 PID 640 wrote to memory of 2512 640 csrsll.exe 36 PID 640 wrote to memory of 2512 640 csrsll.exe 36 PID 640 wrote to memory of 2512 640 csrsll.exe 36 PID 640 wrote to memory of 2512 640 csrsll.exe 36 PID 640 wrote to memory of 2512 640 csrsll.exe 36 PID 640 wrote to memory of 2512 640 csrsll.exe 36 PID 640 wrote to memory of 1160 640 csrsll.exe 37 PID 640 wrote to memory of 1160 640 csrsll.exe 37 PID 640 wrote to memory of 1160 640 csrsll.exe 37 PID 640 wrote to memory of 1160 640 csrsll.exe 37 PID 640 wrote to memory of 1160 640 csrsll.exe 37 PID 640 wrote to memory of 1160 640 csrsll.exe 37 PID 640 wrote to memory of 1160 640 csrsll.exe 37 PID 640 wrote to memory of 1160 640 csrsll.exe 37
Processes
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C:\Users\Admin\AppData\Local\Temp\bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe"C:\Users\Admin\AppData\Local\Temp\bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1940 -
C:\Users\Admin\AppData\Local\Temp\bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe"C:\Users\Admin\AppData\Local\Temp\bc37d02ea433bbc6e0462837220a6d6f5be5b390944cc32eb031f13cf82dfbe5N.exe"2⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2664 -
C:\Windows\SysWOW64\cmd.execmd /c ""C:\Users\Admin\AppData\Local\Temp\UWIMR.bat" "3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2272 -
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:1088
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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:640 -
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:2512
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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:1160
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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
MD5813ef6f488f3f2217d4f920b3e04e679
SHA101621ff65290f1df364548bbd54502be21fc0445
SHA256007d6831a0c18ddab0561dca9b15548ed0d6f09154ec2dd81cc25f1c1600dda8
SHA51258762b5424939f7d9b2d96cc667665b72bfc121d1d746400614c0368f3003c25794b414dceee0b0a30e4a7ab957038786f8a72293b1c2b28493f69eacd55a0c2