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Analysis
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max time kernel
153s -
max time network
190s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
14/10/2022, 09:46
Behavioral task
behavioral1
Sample
cd5fe84df2f724ba4ff5e167f46e4924ee47aab48a2945c9476623f3157aecb4.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
cd5fe84df2f724ba4ff5e167f46e4924ee47aab48a2945c9476623f3157aecb4.exe
Resource
win10v2004-20220812-en
General
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Target
cd5fe84df2f724ba4ff5e167f46e4924ee47aab48a2945c9476623f3157aecb4.exe
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Size
110KB
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MD5
72c9ef6268a40b8d685c8f2a2c9a973d
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SHA1
2f6cc5b20e2438fdceda6724295d32d5d6fa3ebf
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SHA256
cd5fe84df2f724ba4ff5e167f46e4924ee47aab48a2945c9476623f3157aecb4
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SHA512
f41153c59c6c530bc787201546b0021c433e5ceb4d1dd30dd1af8d2cfc20fda81ee80d070d4f98f4e4475fdb9ca2587102ca70755be45fed052999a0c79ea3d4
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SSDEEP
3072:X1+MJKrUnFYY5z1i0Nmbi5fJBN6ZI1ty+eBout:dIrPj0NmWtNKIEBoS
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/2180-136-0x0000000000400000-0x000000000044F000-memory.dmp modiloader_stage2 behavioral2/memory/3564-142-0x0000000000400000-0x000000000044F000-memory.dmp modiloader_stage2 behavioral2/memory/3564-143-0x0000000000400000-0x000000000044F000-memory.dmp modiloader_stage2 -
Executes dropped EXE 1 IoCs
pid Process 3564 mstwain32.exe -
resource yara_rule behavioral2/memory/2180-132-0x0000000000400000-0x000000000044F000-memory.dmp upx behavioral2/files/0x000a000000022e63-134.dat upx behavioral2/files/0x000a000000022e63-135.dat upx behavioral2/memory/2180-136-0x0000000000400000-0x000000000044F000-memory.dmp upx behavioral2/memory/3564-142-0x0000000000400000-0x000000000044F000-memory.dmp upx behavioral2/memory/3564-143-0x0000000000400000-0x000000000044F000-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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation cd5fe84df2f724ba4ff5e167f46e4924ee47aab48a2945c9476623f3157aecb4.exe -
Loads dropped DLL 4 IoCs
pid Process 3564 mstwain32.exe 3564 mstwain32.exe 3564 mstwain32.exe 3564 mstwain32.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ mstwain32.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mstwain32 = "C:\\Windows\\mstwain32.exe" mstwain32.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" mstwain32.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA cd5fe84df2f724ba4ff5e167f46e4924ee47aab48a2945c9476623f3157aecb4.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA mstwain32.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\mstwain32.exe cd5fe84df2f724ba4ff5e167f46e4924ee47aab48a2945c9476623f3157aecb4.exe File created C:\Windows\ntdtcstp.dll mstwain32.exe File created C:\Windows\cmsetac.dll mstwain32.exe File created C:\Windows\mstwain32.exe cd5fe84df2f724ba4ff5e167f46e4924ee47aab48a2945c9476623f3157aecb4.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 3 IoCs
description pid Process Token: SeDebugPrivilege 2180 cd5fe84df2f724ba4ff5e167f46e4924ee47aab48a2945c9476623f3157aecb4.exe Token: SeDebugPrivilege 3564 mstwain32.exe Token: SeDebugPrivilege 3564 mstwain32.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2180 cd5fe84df2f724ba4ff5e167f46e4924ee47aab48a2945c9476623f3157aecb4.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 3564 mstwain32.exe 3564 mstwain32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2180 wrote to memory of 3564 2180 cd5fe84df2f724ba4ff5e167f46e4924ee47aab48a2945c9476623f3157aecb4.exe 82 PID 2180 wrote to memory of 3564 2180 cd5fe84df2f724ba4ff5e167f46e4924ee47aab48a2945c9476623f3157aecb4.exe 82 PID 2180 wrote to memory of 3564 2180 cd5fe84df2f724ba4ff5e167f46e4924ee47aab48a2945c9476623f3157aecb4.exe 82 -
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\cd5fe84df2f724ba4ff5e167f46e4924ee47aab48a2945c9476623f3157aecb4.exe"C:\Users\Admin\AppData\Local\Temp\cd5fe84df2f724ba4ff5e167f46e4924ee47aab48a2945c9476623f3157aecb4.exe"1⤵
- Checks computer location settings
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2180 -
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:3564
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
32KB
MD5e4da9969514175d98bb1aa1ee5a65f56
SHA15e3ecf7c3626b157176c67c099d01d3ba67c0938
SHA2564e2d43ebb822a47631ff145d847a3961528701454c4fb46abf28313d54f9475a
SHA512f86956d45f1a7782fc99b7a265be97443d91ac2ac21209e512d3d582689a85302a4037f67edc886bf8a285ca74c494d22ae901bcfa98bde2d6546e10de86f622
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Filesize
32KB
MD5e4da9969514175d98bb1aa1ee5a65f56
SHA15e3ecf7c3626b157176c67c099d01d3ba67c0938
SHA2564e2d43ebb822a47631ff145d847a3961528701454c4fb46abf28313d54f9475a
SHA512f86956d45f1a7782fc99b7a265be97443d91ac2ac21209e512d3d582689a85302a4037f67edc886bf8a285ca74c494d22ae901bcfa98bde2d6546e10de86f622
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Filesize
110KB
MD572c9ef6268a40b8d685c8f2a2c9a973d
SHA12f6cc5b20e2438fdceda6724295d32d5d6fa3ebf
SHA256cd5fe84df2f724ba4ff5e167f46e4924ee47aab48a2945c9476623f3157aecb4
SHA512f41153c59c6c530bc787201546b0021c433e5ceb4d1dd30dd1af8d2cfc20fda81ee80d070d4f98f4e4475fdb9ca2587102ca70755be45fed052999a0c79ea3d4
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Filesize
110KB
MD572c9ef6268a40b8d685c8f2a2c9a973d
SHA12f6cc5b20e2438fdceda6724295d32d5d6fa3ebf
SHA256cd5fe84df2f724ba4ff5e167f46e4924ee47aab48a2945c9476623f3157aecb4
SHA512f41153c59c6c530bc787201546b0021c433e5ceb4d1dd30dd1af8d2cfc20fda81ee80d070d4f98f4e4475fdb9ca2587102ca70755be45fed052999a0c79ea3d4
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Filesize
7KB
MD567587e25a971a141628d7f07bd40ffa0
SHA176fcd014539a3bb247cc0b761225f68bd6055f6b
SHA256e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378
SHA5126e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350
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Filesize
7KB
MD567587e25a971a141628d7f07bd40ffa0
SHA176fcd014539a3bb247cc0b761225f68bd6055f6b
SHA256e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378
SHA5126e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350