Analysis
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max time kernel
146s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
20-12-2023 16:56
Static task
static1
Behavioral task
behavioral1
Sample
ef2d0d45bafd7c1f5cf4564c1307ea7d.exe
Resource
win7-20231215-en
General
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Target
ef2d0d45bafd7c1f5cf4564c1307ea7d.exe
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Size
433KB
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MD5
ef2d0d45bafd7c1f5cf4564c1307ea7d
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SHA1
0b7e8ad2f1bb148a6139433c724ccb9c63cff3e2
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SHA256
ace7357cb47c8f0c23ee7e1f6fe9ca94c7c1d25bd39ad7965174d3e7dedec70f
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SHA512
6fed8cb6985cd66a11356f377b19cd1b00f47bc35262b741e3d1b7a32048dde24a82feb0bbbf361ce1ea91cab6b0aa877e417d76377b7bbb3ae11247271bcbfa
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SSDEEP
12288:/pz3X0sr9b0i55JKbDNSSkauKkEMfhhYYNZuCCCyBFu9:/RSnuKkEMfnN8CC38
Malware Config
Extracted
xpertrat
3.0.10
Test
kapasky-antivirus.firewall-gateway.net:4000
L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0
Signatures
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Processes:
ef2d0d45bafd7c1f5cf4564c1307ea7d.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" ef2d0d45bafd7c1f5cf4564c1307ea7d.exe -
Processes:
ef2d0d45bafd7c1f5cf4564c1307ea7d.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0" ef2d0d45bafd7c1f5cf4564c1307ea7d.exe -
XpertRAT Core payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/3692-14-0x0000000000400000-0x0000000000443000-memory.dmp xpertrat -
Adds policy Run key to start application 2 TTPs 2 IoCs
Processes:
iexplore.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run iexplore.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0 = "C:\\Users\\Admin\\AppData\\Roaming\\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0.exe" iexplore.exe -
Deletes itself 1 IoCs
Processes:
notepad.exepid process 5076 notepad.exe -
Processes:
ef2d0d45bafd7c1f5cf4564c1307ea7d.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0" ef2d0d45bafd7c1f5cf4564c1307ea7d.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
iexplore.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0 = "C:\\Users\\Admin\\AppData\\Roaming\\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0.exe" iexplore.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0 = "C:\\Users\\Admin\\AppData\\Roaming\\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0.exe" iexplore.exe -
Processes:
ef2d0d45bafd7c1f5cf4564c1307ea7d.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" ef2d0d45bafd7c1f5cf4564c1307ea7d.exe -
Suspicious use of SetThreadContext 2 IoCs
Processes:
ef2d0d45bafd7c1f5cf4564c1307ea7d.exeef2d0d45bafd7c1f5cf4564c1307ea7d.exedescription pid process target process PID 3420 set thread context of 2300 3420 ef2d0d45bafd7c1f5cf4564c1307ea7d.exe ef2d0d45bafd7c1f5cf4564c1307ea7d.exe PID 2300 set thread context of 3692 2300 ef2d0d45bafd7c1f5cf4564c1307ea7d.exe iexplore.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
ef2d0d45bafd7c1f5cf4564c1307ea7d.exeef2d0d45bafd7c1f5cf4564c1307ea7d.exepid process 3420 ef2d0d45bafd7c1f5cf4564c1307ea7d.exe 3420 ef2d0d45bafd7c1f5cf4564c1307ea7d.exe 2300 ef2d0d45bafd7c1f5cf4564c1307ea7d.exe 2300 ef2d0d45bafd7c1f5cf4564c1307ea7d.exe 2300 ef2d0d45bafd7c1f5cf4564c1307ea7d.exe 2300 ef2d0d45bafd7c1f5cf4564c1307ea7d.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
ef2d0d45bafd7c1f5cf4564c1307ea7d.exeiexplore.exedescription pid process Token: SeDebugPrivilege 3420 ef2d0d45bafd7c1f5cf4564c1307ea7d.exe Token: SeDebugPrivilege 3692 iexplore.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
ef2d0d45bafd7c1f5cf4564c1307ea7d.exeiexplore.exepid process 2300 ef2d0d45bafd7c1f5cf4564c1307ea7d.exe 3692 iexplore.exe -
Suspicious use of WriteProcessMemory 19 IoCs
Processes:
ef2d0d45bafd7c1f5cf4564c1307ea7d.exeef2d0d45bafd7c1f5cf4564c1307ea7d.exeiexplore.exedescription pid process target process PID 3420 wrote to memory of 2300 3420 ef2d0d45bafd7c1f5cf4564c1307ea7d.exe ef2d0d45bafd7c1f5cf4564c1307ea7d.exe PID 3420 wrote to memory of 2300 3420 ef2d0d45bafd7c1f5cf4564c1307ea7d.exe ef2d0d45bafd7c1f5cf4564c1307ea7d.exe PID 3420 wrote to memory of 2300 3420 ef2d0d45bafd7c1f5cf4564c1307ea7d.exe ef2d0d45bafd7c1f5cf4564c1307ea7d.exe PID 3420 wrote to memory of 2300 3420 ef2d0d45bafd7c1f5cf4564c1307ea7d.exe ef2d0d45bafd7c1f5cf4564c1307ea7d.exe PID 3420 wrote to memory of 2300 3420 ef2d0d45bafd7c1f5cf4564c1307ea7d.exe ef2d0d45bafd7c1f5cf4564c1307ea7d.exe PID 3420 wrote to memory of 2300 3420 ef2d0d45bafd7c1f5cf4564c1307ea7d.exe ef2d0d45bafd7c1f5cf4564c1307ea7d.exe PID 3420 wrote to memory of 2300 3420 ef2d0d45bafd7c1f5cf4564c1307ea7d.exe ef2d0d45bafd7c1f5cf4564c1307ea7d.exe PID 2300 wrote to memory of 3692 2300 ef2d0d45bafd7c1f5cf4564c1307ea7d.exe iexplore.exe PID 2300 wrote to memory of 3692 2300 ef2d0d45bafd7c1f5cf4564c1307ea7d.exe iexplore.exe PID 2300 wrote to memory of 3692 2300 ef2d0d45bafd7c1f5cf4564c1307ea7d.exe iexplore.exe PID 2300 wrote to memory of 3692 2300 ef2d0d45bafd7c1f5cf4564c1307ea7d.exe iexplore.exe PID 2300 wrote to memory of 3692 2300 ef2d0d45bafd7c1f5cf4564c1307ea7d.exe iexplore.exe PID 2300 wrote to memory of 3692 2300 ef2d0d45bafd7c1f5cf4564c1307ea7d.exe iexplore.exe PID 2300 wrote to memory of 3692 2300 ef2d0d45bafd7c1f5cf4564c1307ea7d.exe iexplore.exe PID 2300 wrote to memory of 3692 2300 ef2d0d45bafd7c1f5cf4564c1307ea7d.exe iexplore.exe PID 3692 wrote to memory of 5076 3692 iexplore.exe notepad.exe PID 3692 wrote to memory of 5076 3692 iexplore.exe notepad.exe PID 3692 wrote to memory of 5076 3692 iexplore.exe notepad.exe PID 3692 wrote to memory of 5076 3692 iexplore.exe notepad.exe -
System policy modification 1 TTPs 1 IoCs
Processes:
ef2d0d45bafd7c1f5cf4564c1307ea7d.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" ef2d0d45bafd7c1f5cf4564c1307ea7d.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\ef2d0d45bafd7c1f5cf4564c1307ea7d.exe"C:\Users\Admin\AppData\Local\Temp\ef2d0d45bafd7c1f5cf4564c1307ea7d.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3420 -
C:\Users\Admin\AppData\Local\Temp\ef2d0d45bafd7c1f5cf4564c1307ea7d.exeC:\Users\Admin\AppData\Local\Temp\ef2d0d45bafd7c1f5cf4564c1307ea7d.exe2⤵
- UAC bypass
- Windows security bypass
- Windows security modification
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
PID:2300 -
C:\Program Files (x86)\Internet Explorer\iexplore.exeC:\Users\Admin\AppData\Local\Temp\ef2d0d45bafd7c1f5cf4564c1307ea7d.exe3⤵
- Adds policy Run key to start application
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3692 -
C:\Windows\SysWOW64\notepad.exenotepad.exe4⤵
- Deletes itself
PID:5076
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Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2