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Analysis
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max time kernel
143s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
04/02/2024, 19:33
Static task
static1
Behavioral task
behavioral1
Sample
a4e55b134fe1f35e2c86ddefc420c840.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
a4e55b134fe1f35e2c86ddefc420c840.exe
Resource
win10v2004-20231215-en
General
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Target
a4e55b134fe1f35e2c86ddefc420c840.exe
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Size
29KB
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MD5
a4e55b134fe1f35e2c86ddefc420c840
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SHA1
24f1c3f2bd6b6dc50eba24d1dec9465c135e6a63
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SHA256
2b52ff31f1e3eeb17b8cc6fe5aa354fe787b97818f31fec5c60489636d62a54e
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SHA512
eae7e548ebb816af1f319489b8cc6b2aefc7129c2c9eb214da65dc950d57af32d7496d3ccbe98ef9575ee55199b9b6fd000c071fa61d551dbe39a42b49597681
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SSDEEP
768:plOpnqjUI/I7ss4TufgvF9YiOIz4dEFiRm:nO0s4Tufgvvlxz8ei
Malware Config
Signatures
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Detects LgoogLoader payload 1 IoCs
resource yara_rule behavioral2/memory/4928-18-0x0000000002DB0000-0x0000000002DBD000-memory.dmp family_lgoogloader -
LgoogLoader
A downloader capable of dropping and executing other malware families.
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description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" a4e55b134fe1f35e2c86ddefc420c840.exe -
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths a4e55b134fe1f35e2c86ddefc420c840.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\a4e55b134fe1f35e2c86ddefc420c840.exe = "0" a4e55b134fe1f35e2c86ddefc420c840.exe -
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-1-5-21-983843758-932321429-1636175382-1000\Control Panel\International\Geo\Nation a4e55b134fe1f35e2c86ddefc420c840.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\a4e55b134fe1f35e2c86ddefc420c840.exe = "0" a4e55b134fe1f35e2c86ddefc420c840.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths a4e55b134fe1f35e2c86ddefc420c840.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions a4e55b134fe1f35e2c86ddefc420c840.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA a4e55b134fe1f35e2c86ddefc420c840.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" a4e55b134fe1f35e2c86ddefc420c840.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1160 set thread context of 4928 1160 a4e55b134fe1f35e2c86ddefc420c840.exe 88 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 752 powershell.exe 752 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 752 powershell.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 1160 wrote to memory of 752 1160 a4e55b134fe1f35e2c86ddefc420c840.exe 86 PID 1160 wrote to memory of 752 1160 a4e55b134fe1f35e2c86ddefc420c840.exe 86 PID 1160 wrote to memory of 752 1160 a4e55b134fe1f35e2c86ddefc420c840.exe 86 PID 1160 wrote to memory of 4928 1160 a4e55b134fe1f35e2c86ddefc420c840.exe 88 PID 1160 wrote to memory of 4928 1160 a4e55b134fe1f35e2c86ddefc420c840.exe 88 PID 1160 wrote to memory of 4928 1160 a4e55b134fe1f35e2c86ddefc420c840.exe 88 PID 1160 wrote to memory of 4928 1160 a4e55b134fe1f35e2c86ddefc420c840.exe 88 PID 1160 wrote to memory of 4928 1160 a4e55b134fe1f35e2c86ddefc420c840.exe 88 PID 1160 wrote to memory of 4928 1160 a4e55b134fe1f35e2c86ddefc420c840.exe 88 PID 1160 wrote to memory of 4928 1160 a4e55b134fe1f35e2c86ddefc420c840.exe 88 PID 1160 wrote to memory of 4928 1160 a4e55b134fe1f35e2c86ddefc420c840.exe 88 PID 1160 wrote to memory of 4928 1160 a4e55b134fe1f35e2c86ddefc420c840.exe 88 PID 1160 wrote to memory of 4928 1160 a4e55b134fe1f35e2c86ddefc420c840.exe 88 PID 1160 wrote to memory of 4928 1160 a4e55b134fe1f35e2c86ddefc420c840.exe 88 -
System policy modification 1 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" a4e55b134fe1f35e2c86ddefc420c840.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\a4e55b134fe1f35e2c86ddefc420c840.exe"C:\Users\Admin\AppData\Local\Temp\a4e55b134fe1f35e2c86ddefc420c840.exe"1⤵
- UAC bypass
- Windows security bypass
- Checks computer location settings
- Windows security modification
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1160 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\a4e55b134fe1f35e2c86ddefc420c840.exe" -Force2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:752
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C:\Windows\SysWOW64\calc.exe"C:\Windows\SYSWOW64\calc.exe"2⤵PID:4928
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82