Analysis
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max time kernel
148s -
max time network
145s -
platform
windows7_x64 -
resource
win7-20240215-en -
resource tags
arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system -
submitted
31-05-2024 05:20
Static task
static1
Behavioral task
behavioral1
Sample
fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe
Resource
win10v2004-20240508-en
General
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Target
fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe
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Size
308KB
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MD5
612d430151691943f282e50390262814
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SHA1
3919b02437dbb581eaefa1a824e60b87985cc776
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SHA256
fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7
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SHA512
b541015351b53107122b9d6113407c12b67ec3a20c65107c8253d6d3c73b20b4047122a32f526a788a08eabd3ed676faa5abbc7ca5311dc3cf4f15218d31eff0
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SSDEEP
3072:/c3sBG7mXh7m/zZM3jAbNOM6CNtDCZFL:E3sBz0Z4Mj72F
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
Processes:
resource yara_rule behavioral1/memory/149188-147851-0x0000000000400000-0x0000000000414000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA -
ModiLoader Second Stage 1 IoCs
Processes:
resource yara_rule behavioral1/memory/149188-147851-0x0000000000400000-0x0000000000414000-memory.dmp modiloader_stage2 -
UPX dump on OEP (original entry point) 9 IoCs
Processes:
resource yara_rule behavioral1/memory/231616-73920-0x0000000000400000-0x000000000040B000-memory.dmp UPX behavioral1/memory/231616-73923-0x0000000000400000-0x000000000040B000-memory.dmp UPX behavioral1/memory/231616-73926-0x0000000000400000-0x000000000040B000-memory.dmp UPX behavioral1/memory/231616-73925-0x0000000000400000-0x000000000040B000-memory.dmp UPX behavioral1/memory/231616-95291-0x0000000000400000-0x000000000040B000-memory.dmp UPX behavioral1/memory/149188-147837-0x0000000000400000-0x0000000000414000-memory.dmp UPX behavioral1/memory/231616-147844-0x0000000000400000-0x000000000040B000-memory.dmp UPX behavioral1/memory/149092-147850-0x0000000000400000-0x000000000040B000-memory.dmp UPX behavioral1/memory/149188-147851-0x0000000000400000-0x0000000000414000-memory.dmp UPX -
Executes dropped EXE 3 IoCs
Processes:
csrsll.execsrsll.execsrsll.exepid process 231848 csrsll.exe 149092 csrsll.exe 149188 csrsll.exe -
Loads dropped DLL 5 IoCs
Processes:
fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exepid process 231616 fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe 231616 fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe 231616 fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe 231616 fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe 231616 fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe -
Processes:
resource yara_rule behavioral1/memory/231616-73918-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/231616-73920-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/231616-73923-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/231616-73926-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/231616-73925-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/231616-95291-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/149188-147837-0x0000000000400000-0x0000000000414000-memory.dmp upx behavioral1/memory/231616-147844-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/149092-147850-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/149188-147851-0x0000000000400000-0x0000000000414000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
reg.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe" reg.exe -
Suspicious use of SetThreadContext 3 IoCs
Processes:
fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.execsrsll.exedescription pid process target process PID 2208 set thread context of 231616 2208 fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe PID 231848 set thread context of 149092 231848 csrsll.exe csrsll.exe PID 231848 set thread context of 149188 231848 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 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe Token: SeDebugPrivilege 149092 csrsll.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
Processes:
fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exefa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.execsrsll.execsrsll.exepid process 2208 fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe 231616 fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe 231848 csrsll.exe 149092 csrsll.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exefa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.execmd.execsrsll.exedescription pid process target process PID 2208 wrote to memory of 231616 2208 fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe PID 2208 wrote to memory of 231616 2208 fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe PID 2208 wrote to memory of 231616 2208 fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe PID 2208 wrote to memory of 231616 2208 fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe PID 2208 wrote to memory of 231616 2208 fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe PID 2208 wrote to memory of 231616 2208 fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe PID 2208 wrote to memory of 231616 2208 fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe PID 2208 wrote to memory of 231616 2208 fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe PID 231616 wrote to memory of 231772 231616 fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe cmd.exe PID 231616 wrote to memory of 231772 231616 fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe cmd.exe PID 231616 wrote to memory of 231772 231616 fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe cmd.exe PID 231616 wrote to memory of 231772 231616 fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe cmd.exe PID 231772 wrote to memory of 231824 231772 cmd.exe reg.exe PID 231772 wrote to memory of 231824 231772 cmd.exe reg.exe PID 231772 wrote to memory of 231824 231772 cmd.exe reg.exe PID 231772 wrote to memory of 231824 231772 cmd.exe reg.exe PID 231616 wrote to memory of 231848 231616 fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe csrsll.exe PID 231616 wrote to memory of 231848 231616 fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe csrsll.exe PID 231616 wrote to memory of 231848 231616 fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe csrsll.exe PID 231616 wrote to memory of 231848 231616 fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe csrsll.exe PID 231848 wrote to memory of 149092 231848 csrsll.exe csrsll.exe PID 231848 wrote to memory of 149092 231848 csrsll.exe csrsll.exe PID 231848 wrote to memory of 149092 231848 csrsll.exe csrsll.exe PID 231848 wrote to memory of 149092 231848 csrsll.exe csrsll.exe PID 231848 wrote to memory of 149092 231848 csrsll.exe csrsll.exe PID 231848 wrote to memory of 149092 231848 csrsll.exe csrsll.exe PID 231848 wrote to memory of 149092 231848 csrsll.exe csrsll.exe PID 231848 wrote to memory of 149092 231848 csrsll.exe csrsll.exe PID 231848 wrote to memory of 149188 231848 csrsll.exe csrsll.exe PID 231848 wrote to memory of 149188 231848 csrsll.exe csrsll.exe PID 231848 wrote to memory of 149188 231848 csrsll.exe csrsll.exe PID 231848 wrote to memory of 149188 231848 csrsll.exe csrsll.exe PID 231848 wrote to memory of 149188 231848 csrsll.exe csrsll.exe PID 231848 wrote to memory of 149188 231848 csrsll.exe csrsll.exe PID 231848 wrote to memory of 149188 231848 csrsll.exe csrsll.exe PID 231848 wrote to memory of 149188 231848 csrsll.exe csrsll.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe"C:\Users\Admin\AppData\Local\Temp\fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe"C:\Users\Admin\AppData\Local\Temp\fa5c3657371b65c41af6ddb79c2d2f775d983837df3835ef61dda0364ad44fa7.exe"2⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.execmd /c ""C:\Users\Admin\AppData\Local\Temp\EMAXB.bat" "3⤵
- Suspicious use of WriteProcessMemory
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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
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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
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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
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C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"4⤵
- Executes dropped EXE
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\EMAXB.batFilesize
145B
MD54eb61ec7816c34ec8c125acadc57ec1b
SHA1b0015cc865c0bb1a027be663027d3829401a31cc
SHA25608375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff
SHA512f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1
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\Users\Admin\AppData\Roaming\Microsoft\csrsll.exeFilesize
308KB
MD5ae3da115df8cd008589e6f6b7f154279
SHA17a2a34c8e1b04dab8cec81e399fbbaeb9cbe846f
SHA2561ca07daf3a00df2eb85bd8a394b8dfb8029285109f84fe10da5eb741e130d284
SHA51202768690d0cabc597482b26299cf15d018cef43a7de4e24d6d3794f28b17f367dbc2efa544ca81dc11e7d44cc9f3c83f5e733d844e6a9b69efc69e8e8b3d5d83
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memory/2208-0-0x0000000000400000-0x0000000000453000-memory.dmpFilesize
332KB
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memory/2208-3-0x0000000000230000-0x0000000000231000-memory.dmpFilesize
4KB
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memory/149092-147850-0x0000000000400000-0x000000000040B000-memory.dmpFilesize
44KB
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memory/149188-147851-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/149188-147837-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/231616-73925-0x0000000000400000-0x000000000040B000-memory.dmpFilesize
44KB
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memory/231616-73926-0x0000000000400000-0x000000000040B000-memory.dmpFilesize
44KB
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memory/231616-73923-0x0000000000400000-0x000000000040B000-memory.dmpFilesize
44KB
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memory/231616-73920-0x0000000000400000-0x000000000040B000-memory.dmpFilesize
44KB
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memory/231616-95291-0x0000000000400000-0x000000000040B000-memory.dmpFilesize
44KB
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memory/231616-73922-0x000000007EFDE000-0x000000007EFDF000-memory.dmpFilesize
4KB
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memory/231616-147844-0x0000000000400000-0x000000000040B000-memory.dmpFilesize
44KB
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memory/231616-73918-0x0000000000400000-0x000000000040B000-memory.dmpFilesize
44KB
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memory/231616-73916-0x0000000000400000-0x000000000040B000-memory.dmpFilesize
44KB
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memory/231848-73966-0x0000000000400000-0x0000000000453000-memory.dmpFilesize
332KB