Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system - submitted
04/06/2024, 02:17
Behavioral task
behavioral1
Sample
bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe
Resource
win7-20240419-en
windows7-x64
13 signatures
150 seconds
Behavioral task
behavioral2
Sample
bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe
Resource
win10v2004-20240508-en
windows10-2004-x64
13 signatures
150 seconds
General
- Target bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe
- Size 326KB
- Sample240604-cq7ltsaa51
- SHA256 bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e
- MD5 1b7f3191fcf1188240852a5af5df52df
- SHA1 402b3285afd77ec9499f349ec7365d7a1be9ef94
- SHA512 55ae4552585085f32a7a2439571129864f168254209736780a156930ccdfa2c037daa20130066d35ab0f95d13d5809c2c84e107cb850a6dca48bad43218c60aa
- SSDEEP 3072:Ie2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38XV:IsxD5cwohO+O1sVG0/pZ6iPC8
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
- Detects Windows executables referencing non-Windows User-Agents 4 IoCs
resource yara_rule behavioral2/memory/4724-50-0x0000000000400000-0x0000000000414000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral2/memory/4724-53-0x0000000000400000-0x0000000000414000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral2/memory/4724-49-0x0000000000400000-0x0000000000414000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral2/memory/4724-58-0x0000000000400000-0x0000000000414000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA - ModiLoader Second Stage 4 IoCs
resource yara_rule behavioral2/memory/4724-50-0x0000000000400000-0x0000000000414000-memory.dmp modiloader_stage2 behavioral2/memory/4724-53-0x0000000000400000-0x0000000000414000-memory.dmp modiloader_stage2 behavioral2/memory/4724-49-0x0000000000400000-0x0000000000414000-memory.dmp modiloader_stage2 behavioral2/memory/4724-58-0x0000000000400000-0x0000000000414000-memory.dmp modiloader_stage2 - UPX dump on OEP (original entry point) 18 IoCs
resource yara_rule behavioral2/memory/2348-0-0x0000000000400000-0x0000000000454000-memory.dmp UPX behavioral2/memory/1396-4-0x0000000000400000-0x000000000040B000-memory.dmp UPX behavioral2/memory/1396-9-0x0000000000400000-0x000000000040B000-memory.dmp UPX behavioral2/memory/2348-10-0x0000000000400000-0x0000000000454000-memory.dmp UPX behavioral2/memory/1396-11-0x0000000000400000-0x000000000040B000-memory.dmp UPX behavioral2/memory/1396-12-0x0000000000400000-0x000000000040B000-memory.dmp UPX behavioral2/files/0x000c00000002338c-28.dat UPX behavioral2/memory/1664-36-0x0000000000400000-0x0000000000454000-memory.dmp UPX behavioral2/memory/1664-42-0x0000000000400000-0x0000000000454000-memory.dmp UPX behavioral2/memory/4724-48-0x0000000000400000-0x0000000000414000-memory.dmp UPX behavioral2/memory/4724-50-0x0000000000400000-0x0000000000414000-memory.dmp UPX behavioral2/memory/4724-53-0x0000000000400000-0x0000000000414000-memory.dmp UPX behavioral2/memory/4724-49-0x0000000000400000-0x0000000000414000-memory.dmp UPX behavioral2/memory/4724-44-0x0000000000400000-0x0000000000414000-memory.dmp UPX behavioral2/memory/1664-54-0x0000000000400000-0x0000000000454000-memory.dmp UPX behavioral2/memory/1396-55-0x0000000000400000-0x000000000040B000-memory.dmp UPX behavioral2/memory/944-57-0x0000000000400000-0x000000000040B000-memory.dmp UPX behavioral2/memory/4724-58-0x0000000000400000-0x0000000000414000-memory.dmp UPX - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe - Executes dropped EXE 3 IoCs
pid Process 1664 csrsll.exe 944 csrsll.exe 4724 csrsll.exe -
resource yara_rule behavioral2/memory/2348-0-0x0000000000400000-0x0000000000454000-memory.dmp upx behavioral2/memory/1396-4-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral2/memory/1396-9-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral2/memory/2348-10-0x0000000000400000-0x0000000000454000-memory.dmp upx behavioral2/memory/1396-11-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral2/memory/1396-12-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral2/files/0x000c00000002338c-28.dat upx behavioral2/memory/1664-36-0x0000000000400000-0x0000000000454000-memory.dmp upx behavioral2/memory/1664-42-0x0000000000400000-0x0000000000454000-memory.dmp upx behavioral2/memory/4724-48-0x0000000000400000-0x0000000000414000-memory.dmp upx behavioral2/memory/4724-50-0x0000000000400000-0x0000000000414000-memory.dmp upx behavioral2/memory/4724-53-0x0000000000400000-0x0000000000414000-memory.dmp upx behavioral2/memory/4724-49-0x0000000000400000-0x0000000000414000-memory.dmp upx behavioral2/memory/4724-44-0x0000000000400000-0x0000000000414000-memory.dmp upx behavioral2/memory/1664-54-0x0000000000400000-0x0000000000454000-memory.dmp upx behavioral2/memory/1396-55-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral2/memory/944-57-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral2/memory/4724-58-0x0000000000400000-0x0000000000414000-memory.dmp upx - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\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 2348 set thread context of 1396 2348 bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe 93 PID 1664 set thread context of 944 1664 csrsll.exe 101 PID 1664 set thread context of 4724 1664 csrsll.exe 102 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe Token: SeDebugPrivilege 944 csrsll.exe - Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 2348 bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe 1396 bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe 1664 csrsll.exe 944 csrsll.exe - Suspicious use of WriteProcessMemory 33 IoCs
description pid Process procid_target PID 2348 wrote to memory of 1396 2348 bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe 93 PID 2348 wrote to memory of 1396 2348 bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe 93 PID 2348 wrote to memory of 1396 2348 bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe 93 PID 2348 wrote to memory of 1396 2348 bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe 93 PID 2348 wrote to memory of 1396 2348 bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe 93 PID 2348 wrote to memory of 1396 2348 bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe 93 PID 2348 wrote to memory of 1396 2348 bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe 93 PID 2348 wrote to memory of 1396 2348 bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe 93 PID 1396 wrote to memory of 4360 1396 bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe 96 PID 1396 wrote to memory of 4360 1396 bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe 96 PID 1396 wrote to memory of 4360 1396 bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe 96 PID 4360 wrote to memory of 3764 4360 cmd.exe 99 PID 4360 wrote to memory of 3764 4360 cmd.exe 99 PID 4360 wrote to memory of 3764 4360 cmd.exe 99 PID 1396 wrote to memory of 1664 1396 bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe 100 PID 1396 wrote to memory of 1664 1396 bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe 100 PID 1396 wrote to memory of 1664 1396 bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe 100 PID 1664 wrote to memory of 944 1664 csrsll.exe 101 PID 1664 wrote to memory of 944 1664 csrsll.exe 101 PID 1664 wrote to memory of 944 1664 csrsll.exe 101 PID 1664 wrote to memory of 944 1664 csrsll.exe 101 PID 1664 wrote to memory of 944 1664 csrsll.exe 101 PID 1664 wrote to memory of 944 1664 csrsll.exe 101 PID 1664 wrote to memory of 944 1664 csrsll.exe 101 PID 1664 wrote to memory of 944 1664 csrsll.exe 101 PID 1664 wrote to memory of 4724 1664 csrsll.exe 102 PID 1664 wrote to memory of 4724 1664 csrsll.exe 102 PID 1664 wrote to memory of 4724 1664 csrsll.exe 102 PID 1664 wrote to memory of 4724 1664 csrsll.exe 102 PID 1664 wrote to memory of 4724 1664 csrsll.exe 102 PID 1664 wrote to memory of 4724 1664 csrsll.exe 102 PID 1664 wrote to memory of 4724 1664 csrsll.exe 102 PID 1664 wrote to memory of 4724 1664 csrsll.exe 102
Processes
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C:\Users\Admin\AppData\Local\Temp\bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe"C:\Users\Admin\AppData\Local\Temp\bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2348 -
C:\Users\Admin\AppData\Local\Temp\bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe"C:\Users\Admin\AppData\Local\Temp\bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe"2⤵
- Checks computer location settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1396 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\XFTSE.bat" "3⤵
- Suspicious use of WriteProcessMemory
PID:4360 -
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:3764
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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:1664 -
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:944
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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:4724
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\XFTSE.txt
- Size 145B
- SHA256 08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff
- MD5 4eb61ec7816c34ec8c125acadc57ec1b
- SHA1 b0015cc865c0bb1a027be663027d3829401a31cc
- SHA512 f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
- Size 326KB
- SHA256 abe859127886540056b6c568a03b3fbe4754a07860f9740c0d5ff11cee25ff3d
- MD5 ae3e1dd797147f1cd9397bfd15572a61
- SHA1 21de3060d133877b47056760df9b5750f03affd4
- SHA512 2a9b40c8ffc3a888eecc2e3d1677c67f0b07530cc5247cb7b3c5645ae1edd906497f5bd6fdd552be5ff59f8175bc329b8d993a78f4846f42a0eb02ba58333d8e
- SSDEEP 3072:Ie2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38XV:IsxD5cwohO+O1sVG0/pZ6iPC8
- MD5 SHA1 SHA512 SSDEEP