Analysis
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max time kernel
151s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
01/12/2022, 09:14
Behavioral task
behavioral1
Sample
12957005e97d5420bb57d9feebf91af628ec84a14b0b7e56be50d495e9b033be.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
12957005e97d5420bb57d9feebf91af628ec84a14b0b7e56be50d495e9b033be.exe
Resource
win10v2004-20220812-en
General
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Target
12957005e97d5420bb57d9feebf91af628ec84a14b0b7e56be50d495e9b033be.exe
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Size
108KB
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MD5
050d035afbd664c0f9a8a81e0574b9a1
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SHA1
08d08877065055e82ae2d221914f3f6f89e1cd32
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SHA256
12957005e97d5420bb57d9feebf91af628ec84a14b0b7e56be50d495e9b033be
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SHA512
fd08c7aec74466cc5f10330019b15234d3d91af8b3977fdb80fa617f38d02243ad0e76f58cf0c5367d5a55e7eabb676b75c888d30234cc8ec064cf6ba5f069b6
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SSDEEP
3072:poy8j7VnNdrPHaSekwi+mW+2poJxDout:58jZ7rvaU3+mWrpGoS
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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description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" mstwain32.exe -
ModiLoader Second Stage 3 IoCs
resource yara_rule behavioral2/memory/3696-137-0x0000000000400000-0x0000000000450000-memory.dmp modiloader_stage2 behavioral2/memory/3376-143-0x0000000000400000-0x0000000000450000-memory.dmp modiloader_stage2 behavioral2/memory/3376-144-0x0000000000400000-0x0000000000450000-memory.dmp modiloader_stage2 -
Executes dropped EXE 1 IoCs
pid Process 3376 mstwain32.exe -
resource yara_rule behavioral2/memory/3696-132-0x0000000000400000-0x0000000000450000-memory.dmp upx behavioral2/memory/3696-133-0x0000000000400000-0x0000000000450000-memory.dmp upx behavioral2/files/0x000400000001db3d-135.dat upx behavioral2/files/0x000400000001db3d-136.dat upx behavioral2/memory/3696-137-0x0000000000400000-0x0000000000450000-memory.dmp upx behavioral2/memory/3376-143-0x0000000000400000-0x0000000000450000-memory.dmp upx behavioral2/memory/3376-144-0x0000000000400000-0x0000000000450000-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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation 12957005e97d5420bb57d9feebf91af628ec84a14b0b7e56be50d495e9b033be.exe -
Loads dropped DLL 4 IoCs
pid Process 3376 mstwain32.exe 3376 mstwain32.exe 3376 mstwain32.exe 3376 mstwain32.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ mstwain32.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mstwain32 = "C:\\Windows\\mstwain32.exe" mstwain32.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 12957005e97d5420bb57d9feebf91af628ec84a14b0b7e56be50d495e9b033be.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
description ioc Process File created C:\Windows\ntdtcstp.dll mstwain32.exe File created C:\Windows\cmsetac.dll mstwain32.exe File created C:\Windows\mstwain32.exe 12957005e97d5420bb57d9feebf91af628ec84a14b0b7e56be50d495e9b033be.exe File opened for modification C:\Windows\mstwain32.exe 12957005e97d5420bb57d9feebf91af628ec84a14b0b7e56be50d495e9b033be.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
description pid Process Token: SeDebugPrivilege 3696 12957005e97d5420bb57d9feebf91af628ec84a14b0b7e56be50d495e9b033be.exe Token: SeBackupPrivilege 4936 vssvc.exe Token: SeRestorePrivilege 4936 vssvc.exe Token: SeAuditPrivilege 4936 vssvc.exe Token: SeDebugPrivilege 3376 mstwain32.exe Token: SeDebugPrivilege 3376 mstwain32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 3376 mstwain32.exe 3376 mstwain32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3696 wrote to memory of 3376 3696 12957005e97d5420bb57d9feebf91af628ec84a14b0b7e56be50d495e9b033be.exe 83 PID 3696 wrote to memory of 3376 3696 12957005e97d5420bb57d9feebf91af628ec84a14b0b7e56be50d495e9b033be.exe 83 PID 3696 wrote to memory of 3376 3696 12957005e97d5420bb57d9feebf91af628ec84a14b0b7e56be50d495e9b033be.exe 83 -
System policy modification 1 TTPs 1 IoCs
description 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\12957005e97d5420bb57d9feebf91af628ec84a14b0b7e56be50d495e9b033be.exe"C:\Users\Admin\AppData\Local\Temp\12957005e97d5420bb57d9feebf91af628ec84a14b0b7e56be50d495e9b033be.exe"1⤵
- Checks computer location settings
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3696 -
C:\Windows\mstwain32.exe"C:\Windows\mstwain32.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
PID:3376
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4936
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
33KB
MD52404c0b73f26bad1cfc863a22494f1ad
SHA11d97cc93946adcae882ec96e8e3496c0e853d578
SHA256e6688712e068f6a477318ed1f87f6efedcc765734261d441d56119518f435ebc
SHA512a64adbfeaee8101227b11b3e410dfd0a24bf3811615860fd6b3e5d321d379d0c78b857c58cea367c4335306982cbe02d7dc4cef98e652be0d41575c4853a110a
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Filesize
33KB
MD52404c0b73f26bad1cfc863a22494f1ad
SHA11d97cc93946adcae882ec96e8e3496c0e853d578
SHA256e6688712e068f6a477318ed1f87f6efedcc765734261d441d56119518f435ebc
SHA512a64adbfeaee8101227b11b3e410dfd0a24bf3811615860fd6b3e5d321d379d0c78b857c58cea367c4335306982cbe02d7dc4cef98e652be0d41575c4853a110a
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Filesize
108KB
MD5050d035afbd664c0f9a8a81e0574b9a1
SHA108d08877065055e82ae2d221914f3f6f89e1cd32
SHA25612957005e97d5420bb57d9feebf91af628ec84a14b0b7e56be50d495e9b033be
SHA512fd08c7aec74466cc5f10330019b15234d3d91af8b3977fdb80fa617f38d02243ad0e76f58cf0c5367d5a55e7eabb676b75c888d30234cc8ec064cf6ba5f069b6
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Filesize
108KB
MD5050d035afbd664c0f9a8a81e0574b9a1
SHA108d08877065055e82ae2d221914f3f6f89e1cd32
SHA25612957005e97d5420bb57d9feebf91af628ec84a14b0b7e56be50d495e9b033be
SHA512fd08c7aec74466cc5f10330019b15234d3d91af8b3977fdb80fa617f38d02243ad0e76f58cf0c5367d5a55e7eabb676b75c888d30234cc8ec064cf6ba5f069b6
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Filesize
7KB
MD567587e25a971a141628d7f07bd40ffa0
SHA176fcd014539a3bb247cc0b761225f68bd6055f6b
SHA256e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378
SHA5126e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350
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Filesize
7KB
MD567587e25a971a141628d7f07bd40ffa0
SHA176fcd014539a3bb247cc0b761225f68bd6055f6b
SHA256e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378
SHA5126e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350