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Analysis
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max time kernel
147s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
04/03/2024, 13:59
Static task
static1
Behavioral task
behavioral1
Sample
b24d4a4e7fa3c44aca03de5f7fdb5c6e.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
b24d4a4e7fa3c44aca03de5f7fdb5c6e.exe
Resource
win10v2004-20240226-en
General
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Target
b24d4a4e7fa3c44aca03de5f7fdb5c6e.exe
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Size
971KB
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MD5
b24d4a4e7fa3c44aca03de5f7fdb5c6e
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SHA1
9e23dd87834318528574088330dd5936afdf0749
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SHA256
6c4a649a0f9b10174c6556de62e77fd1551492f500c498b463466f6da4be20aa
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SHA512
bc8ffb6521e0c625ff3a0f8f5ceef603fbc03fc7b9320f0f431cafb9d6c46bc9591152a714910e16ab01dc08320a787fcd2d67bdb1e332da2e19651ce2621c60
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SSDEEP
24576:Mpo/2+ttPJLfpRK3CjfvWEv8W8CcQy2U1VZx4n:Fe2PJLa3CjfOEEZKyvE
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 23 IoCs
resource yara_rule behavioral2/memory/1644-1-0x0000000000400000-0x000000000044B000-memory.dmp modiloader_stage2 behavioral2/memory/1644-2-0x0000000000400000-0x000000000044B000-memory.dmp modiloader_stage2 behavioral2/memory/1644-3-0x0000000000400000-0x000000000044B000-memory.dmp modiloader_stage2 behavioral2/memory/1644-16-0x0000000000400000-0x000000000044B000-memory.dmp modiloader_stage2 behavioral2/memory/556-18-0x0000000000400000-0x000000000044B000-memory.dmp modiloader_stage2 behavioral2/memory/556-21-0x0000000000400000-0x000000000044B000-memory.dmp modiloader_stage2 behavioral2/memory/556-22-0x0000000000400000-0x000000000044B000-memory.dmp modiloader_stage2 behavioral2/memory/556-23-0x0000000000400000-0x000000000044B000-memory.dmp modiloader_stage2 behavioral2/memory/556-36-0x0000000000400000-0x000000000044B000-memory.dmp modiloader_stage2 behavioral2/memory/556-38-0x0000000000400000-0x000000000044B000-memory.dmp modiloader_stage2 behavioral2/memory/556-41-0x0000000000400000-0x000000000044B000-memory.dmp modiloader_stage2 behavioral2/memory/556-42-0x0000000000400000-0x000000000044B000-memory.dmp modiloader_stage2 behavioral2/memory/556-45-0x0000000000400000-0x000000000044B000-memory.dmp modiloader_stage2 behavioral2/memory/556-48-0x0000000000400000-0x000000000044B000-memory.dmp modiloader_stage2 behavioral2/memory/556-51-0x0000000000400000-0x000000000044B000-memory.dmp modiloader_stage2 behavioral2/memory/556-54-0x0000000000400000-0x000000000044B000-memory.dmp modiloader_stage2 behavioral2/memory/556-57-0x0000000000400000-0x000000000044B000-memory.dmp modiloader_stage2 behavioral2/memory/556-60-0x0000000000400000-0x000000000044B000-memory.dmp modiloader_stage2 behavioral2/memory/556-63-0x0000000000400000-0x000000000044B000-memory.dmp modiloader_stage2 behavioral2/memory/556-66-0x0000000000400000-0x000000000044B000-memory.dmp modiloader_stage2 behavioral2/memory/556-69-0x0000000000400000-0x000000000044B000-memory.dmp modiloader_stage2 behavioral2/memory/556-72-0x0000000000400000-0x000000000044B000-memory.dmp modiloader_stage2 behavioral2/memory/556-75-0x0000000000400000-0x000000000044B000-memory.dmp modiloader_stage2 -
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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation b24d4a4e7fa3c44aca03de5f7fdb5c6e.exe -
Executes dropped EXE 2 IoCs
pid Process 224 mstwain32.exe 556 mstwain32.exe -
Loads dropped DLL 4 IoCs
pid Process 556 mstwain32.exe 556 mstwain32.exe 556 mstwain32.exe 556 mstwain32.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\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 b24d4a4e7fa3c44aca03de5f7fdb5c6e.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 -
AutoIT Executable 3 IoCs
AutoIT scripts compiled to PE executables.
resource yara_rule behavioral2/memory/532-0-0x0000000000400000-0x00000000004C3000-memory.dmp autoit_exe behavioral2/files/0x000700000001dac1-8.dat autoit_exe behavioral2/memory/224-15-0x0000000000400000-0x00000000004C3000-memory.dmp autoit_exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 224 set thread context of 556 224 mstwain32.exe 103 -
Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\cmsetac.dll mstwain32.exe File created C:\Windows\mstwain32.exe b24d4a4e7fa3c44aca03de5f7fdb5c6e.exe File opened for modification C:\Windows\mstwain32.exe b24d4a4e7fa3c44aca03de5f7fdb5c6e.exe File created C:\Windows\ntdtcstp.dll mstwain32.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeDebugPrivilege 1644 b24d4a4e7fa3c44aca03de5f7fdb5c6e.exe Token: SeBackupPrivilege 3016 vssvc.exe Token: SeRestorePrivilege 3016 vssvc.exe Token: SeAuditPrivilege 3016 vssvc.exe Token: SeDebugPrivilege 556 mstwain32.exe Token: SeDebugPrivilege 556 mstwain32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 556 mstwain32.exe 556 mstwain32.exe -
Suspicious use of WriteProcessMemory 23 IoCs
description pid Process procid_target PID 532 wrote to memory of 1644 532 b24d4a4e7fa3c44aca03de5f7fdb5c6e.exe 96 PID 532 wrote to memory of 1644 532 b24d4a4e7fa3c44aca03de5f7fdb5c6e.exe 96 PID 532 wrote to memory of 1644 532 b24d4a4e7fa3c44aca03de5f7fdb5c6e.exe 96 PID 532 wrote to memory of 1644 532 b24d4a4e7fa3c44aca03de5f7fdb5c6e.exe 96 PID 532 wrote to memory of 1644 532 b24d4a4e7fa3c44aca03de5f7fdb5c6e.exe 96 PID 532 wrote to memory of 1644 532 b24d4a4e7fa3c44aca03de5f7fdb5c6e.exe 96 PID 532 wrote to memory of 1644 532 b24d4a4e7fa3c44aca03de5f7fdb5c6e.exe 96 PID 532 wrote to memory of 1644 532 b24d4a4e7fa3c44aca03de5f7fdb5c6e.exe 96 PID 532 wrote to memory of 1644 532 b24d4a4e7fa3c44aca03de5f7fdb5c6e.exe 96 PID 532 wrote to memory of 1644 532 b24d4a4e7fa3c44aca03de5f7fdb5c6e.exe 96 PID 1644 wrote to memory of 224 1644 b24d4a4e7fa3c44aca03de5f7fdb5c6e.exe 102 PID 1644 wrote to memory of 224 1644 b24d4a4e7fa3c44aca03de5f7fdb5c6e.exe 102 PID 1644 wrote to memory of 224 1644 b24d4a4e7fa3c44aca03de5f7fdb5c6e.exe 102 PID 224 wrote to memory of 556 224 mstwain32.exe 103 PID 224 wrote to memory of 556 224 mstwain32.exe 103 PID 224 wrote to memory of 556 224 mstwain32.exe 103 PID 224 wrote to memory of 556 224 mstwain32.exe 103 PID 224 wrote to memory of 556 224 mstwain32.exe 103 PID 224 wrote to memory of 556 224 mstwain32.exe 103 PID 224 wrote to memory of 556 224 mstwain32.exe 103 PID 224 wrote to memory of 556 224 mstwain32.exe 103 PID 224 wrote to memory of 556 224 mstwain32.exe 103 PID 224 wrote to memory of 556 224 mstwain32.exe 103 -
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 -
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\b24d4a4e7fa3c44aca03de5f7fdb5c6e.exe"C:\Users\Admin\AppData\Local\Temp\b24d4a4e7fa3c44aca03de5f7fdb5c6e.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:532 -
C:\Users\Admin\AppData\Local\Temp\b24d4a4e7fa3c44aca03de5f7fdb5c6e.exe"C:\Users\Admin\AppData\Local\Temp\b24d4a4e7fa3c44aca03de5f7fdb5c6e.exe"2⤵
- Checks computer location settings
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1644 -
C:\Windows\mstwain32.exe"C:\Windows\mstwain32.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:224 -
C:\Windows\mstwain32.exe"C:\Windows\mstwain32.exe"4⤵
- 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:556
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3016
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3868 --field-trial-handle=2280,i,1836084024518340990,18250262151825427757,262144 --variations-seed-version /prefetch:81⤵PID:3416
Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
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Downloads
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Filesize
33KB
MD570aa160212bd0f702e60318689d5b389
SHA17a93403f9144f4a49a2052d7bd6380c01858cf4c
SHA256363e100a9a69f5006649d0353fa278dd7eddf8d9d7be8ea03a7140d20af4ed3a
SHA5125bc48f576102d779dd5541795b47349f52d9ac84c4fb8613f8355caa209920e6dae2d1eae883476f2818eb71876a0678b536f52158598540de0eb0b76bc4971d
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Filesize
971KB
MD5b24d4a4e7fa3c44aca03de5f7fdb5c6e
SHA19e23dd87834318528574088330dd5936afdf0749
SHA2566c4a649a0f9b10174c6556de62e77fd1551492f500c498b463466f6da4be20aa
SHA512bc8ffb6521e0c625ff3a0f8f5ceef603fbc03fc7b9320f0f431cafb9d6c46bc9591152a714910e16ab01dc08320a787fcd2d67bdb1e332da2e19651ce2621c60
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Filesize
7KB
MD567587e25a971a141628d7f07bd40ffa0
SHA176fcd014539a3bb247cc0b761225f68bd6055f6b
SHA256e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378
SHA5126e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350