Analysis
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max time kernel
195s -
max time network
234s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
28-11-2022 19:00
Behavioral task
behavioral1
Sample
d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d.exe
Resource
win10v2004-20221111-en
General
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Target
d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d.exe
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Size
109KB
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MD5
6c400d6759138960e13868679b704906
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SHA1
f85ca5590c739682d21d9ead56f0f3d5397bf1bd
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SHA256
d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d
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SHA512
ebd4aee49fd07286b392905e18c4183ec2e6fee130c85339a22239ba87f8537c291924362b829aaecb3274baf2b21283038018f0a3af3a9dadc57bdea3fbeb0d
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SSDEEP
3072:1oy8j7VnNdrPHaSekwi+mW+20vCaqLrout:V8jZ7rvaU3+mWr0KaCoS
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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Processes:
mstwain32.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" mstwain32.exe -
ModiLoader Second Stage 4 IoCs
Processes:
resource yara_rule behavioral2/memory/1764-134-0x0000000000400000-0x000000000044F000-memory.dmp modiloader_stage2 behavioral2/memory/1764-140-0x0000000000400000-0x000000000044F000-memory.dmp modiloader_stage2 behavioral2/memory/604-141-0x0000000000400000-0x000000000044F000-memory.dmp modiloader_stage2 behavioral2/memory/604-145-0x0000000000400000-0x000000000044F000-memory.dmp modiloader_stage2 -
Executes dropped EXE 1 IoCs
Processes:
mstwain32.exepid process 604 mstwain32.exe -
Processes:
resource yara_rule behavioral2/memory/1764-133-0x0000000000400000-0x000000000044F000-memory.dmp upx behavioral2/memory/1764-134-0x0000000000400000-0x000000000044F000-memory.dmp upx C:\Windows\mstwain32.exe upx C:\Windows\mstwain32.exe upx behavioral2/memory/1764-140-0x0000000000400000-0x000000000044F000-memory.dmp upx behavioral2/memory/604-141-0x0000000000400000-0x000000000044F000-memory.dmp upx behavioral2/memory/604-145-0x0000000000400000-0x000000000044F000-memory.dmp upx -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d.exe -
Loads dropped DLL 4 IoCs
Processes:
mstwain32.exepid process 604 mstwain32.exe 604 mstwain32.exe 604 mstwain32.exe 604 mstwain32.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
mstwain32.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ mstwain32.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mstwain32 = "C:\\Windows\\mstwain32.exe" mstwain32.exe -
Processes:
d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d.exemstwain32.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA mstwain32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" mstwain32.exe -
Drops file in Windows directory 4 IoCs
Processes:
d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d.exemstwain32.exedescription ioc process File created C:\Windows\mstwain32.exe d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d.exe File opened for modification C:\Windows\mstwain32.exe d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d.exe File created C:\Windows\ntdtcstp.dll mstwain32.exe File created C:\Windows\cmsetac.dll mstwain32.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious use of AdjustPrivilegeToken 6 IoCs
Processes:
d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d.exevssvc.exemstwain32.exedescription pid process Token: SeDebugPrivilege 1764 d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d.exe Token: SeBackupPrivilege 4592 vssvc.exe Token: SeRestorePrivilege 4592 vssvc.exe Token: SeAuditPrivilege 4592 vssvc.exe Token: SeDebugPrivilege 604 mstwain32.exe Token: SeDebugPrivilege 604 mstwain32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
mstwain32.exepid process 604 mstwain32.exe 604 mstwain32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d.exedescription pid process target process PID 1764 wrote to memory of 604 1764 d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d.exe mstwain32.exe PID 1764 wrote to memory of 604 1764 d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d.exe mstwain32.exe PID 1764 wrote to memory of 604 1764 d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d.exe mstwain32.exe -
System policy modification 1 TTPs 1 IoCs
Processes:
mstwain32.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" mstwain32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d.exe"C:\Users\Admin\AppData\Local\Temp\d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d.exe"1⤵
- Checks computer location settings
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\mstwain32.exe"C:\Windows\mstwain32.exe" \melt "C:\Users\Admin\AppData\Local\Temp\d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d.exe"2⤵
- UAC bypass
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- System policy modification
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Windows\cmsetac.dllFilesize
33KB
MD5cca76552e91a88b07474228b1d6f40df
SHA14ca9cb0b77c3eafd8160db6e89912e6e211e3ee4
SHA256b266429cbf455bc461207009bd954ee3e9c3825e7366c37c5ad4052a9dba551e
SHA51245402cfb72a1357df21048d98c2b5acaf9dc9d935f3613bc134e665732c5f72ab4cd64c305e0c61b741b80a594c5c3c4913807307898cebca3ed44f02f707b33
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C:\Windows\cmsetac.dllFilesize
33KB
MD5cca76552e91a88b07474228b1d6f40df
SHA14ca9cb0b77c3eafd8160db6e89912e6e211e3ee4
SHA256b266429cbf455bc461207009bd954ee3e9c3825e7366c37c5ad4052a9dba551e
SHA51245402cfb72a1357df21048d98c2b5acaf9dc9d935f3613bc134e665732c5f72ab4cd64c305e0c61b741b80a594c5c3c4913807307898cebca3ed44f02f707b33
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C:\Windows\mstwain32.exeFilesize
109KB
MD56c400d6759138960e13868679b704906
SHA1f85ca5590c739682d21d9ead56f0f3d5397bf1bd
SHA256d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d
SHA512ebd4aee49fd07286b392905e18c4183ec2e6fee130c85339a22239ba87f8537c291924362b829aaecb3274baf2b21283038018f0a3af3a9dadc57bdea3fbeb0d
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C:\Windows\mstwain32.exeFilesize
109KB
MD56c400d6759138960e13868679b704906
SHA1f85ca5590c739682d21d9ead56f0f3d5397bf1bd
SHA256d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d
SHA512ebd4aee49fd07286b392905e18c4183ec2e6fee130c85339a22239ba87f8537c291924362b829aaecb3274baf2b21283038018f0a3af3a9dadc57bdea3fbeb0d
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C:\Windows\ntdtcstp.dllFilesize
7KB
MD567587e25a971a141628d7f07bd40ffa0
SHA176fcd014539a3bb247cc0b761225f68bd6055f6b
SHA256e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378
SHA5126e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350
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C:\Windows\ntdtcstp.dllFilesize
7KB
MD567587e25a971a141628d7f07bd40ffa0
SHA176fcd014539a3bb247cc0b761225f68bd6055f6b
SHA256e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378
SHA5126e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350
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memory/604-141-0x0000000000400000-0x000000000044F000-memory.dmpFilesize
316KB
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memory/604-135-0x0000000000000000-mapping.dmp
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memory/604-144-0x0000000000AD0000-0x0000000000ADE000-memory.dmpFilesize
56KB
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memory/604-145-0x0000000000400000-0x000000000044F000-memory.dmpFilesize
316KB
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memory/1764-133-0x0000000000400000-0x000000000044F000-memory.dmpFilesize
316KB
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memory/1764-140-0x0000000000400000-0x000000000044F000-memory.dmpFilesize
316KB
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memory/1764-134-0x0000000000400000-0x000000000044F000-memory.dmpFilesize
316KB