xpertrat | 2d0474bfb8aced6c0aacc081936209dc9287827e20284160ceae3edca8a50184

General

Target

Specification.exe
Size

717KB
MD5

20796a16b1839afba1f87ed53e7bd841
SHA1

d5bd0d0efc2059dbbf1eaaa30b1c859c313d9250
SHA256

2d0474bfb8aced6c0aacc081936209dc9287827e20284160ceae3edca8a50184
SHA512

ad809362c428bdd0d30f56e4fe8f4bfd7960849575451b33c642d5fc7d424e7eb355ec3caba95f02040a80d505db4f04edf363dd7dbdbe79df94ccb22dbce09f

Score

10^/10

xpertrat collection evasion persistence rat trojan

Malware Config

Signatures

UAC bypass 3 TTPs 1 IoCs
evasion trojan

Bypass User Account Control
T1088

Disabling Security Tools
T1089

Modify Registry
T1112

Processes:

InstallUtil.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" InstallUtil.exe
Windows security bypass 2 TTPs 1 IoCs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112

Processes:

InstallUtil.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UACDisableNotify = "0" InstallUtil.exe
XpertRAT
XpertRAT is a remote access trojan with various capabilities.
rat xpertrat

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	InstallUtil.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UACDisableNotify = "0"	InstallUtil.exe

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

iexplore.exe

description	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\Y1F5W2I0-W6V4-G5S1-T8J1-U5Y8L0K337W4 = "C:\\Users\\Admin\\AppData\\Roaming\\Y1F5W2I0-W6V4-G5S1-T8J1-U5Y8L0K337W4\\Y1F5W2I0-W6V4-G5S1-T8J1-U5Y8L0K337W4.exe"	iexplore.exe

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

Processes:

iexplore.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	iexplore.exe

Adds Run key to start application 2 TTPs 5 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

iexplore.exeSpecification.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	iexplore.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Y1F5W2I0-W6V4-G5S1-T8J1-U5Y8L0K337W4 = "C:\\Users\\Admin\\AppData\\Roaming\\Y1F5W2I0-W6V4-G5S1-T8J1-U5Y8L0K337W4\\Y1F5W2I0-W6V4-G5S1-T8J1-U5Y8L0K337W4.exe"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows\CurrentVersion\Run\Ftirj = "\"C:\\Users\\Admin\\AppData\\Roaming\\Vcwewugzx\\Ftirj.exe\""	Specification.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows\CurrentVersion\Run\Y1F5W2I0-W6V4-G5S1-T8J1-U5Y8L0K337W4 = "C:\\Users\\Admin\\AppData\\Roaming\\Y1F5W2I0-W6V4-G5S1-T8J1-U5Y8L0K337W4\\Y1F5W2I0-W6V4-G5S1-T8J1-U5Y8L0K337W4.exe"	iexplore.exe

Suspicious use of SetThreadContext 10 IoCs

Processes:

Specification.exeInstallUtil.exeiexplore.exe

description	pid	process	target process
PID 1472 set thread context of 1664	1472	Specification.exe	InstallUtil.exe
PID 1664 set thread context of 848	1664	InstallUtil.exe	iexplore.exe
PID 1664 set thread context of 884	1664	InstallUtil.exe	iexplore.exe
PID 1664 set thread context of 428	1664	InstallUtil.exe	iexplore.exe
PID 1664 set thread context of 268	1664	InstallUtil.exe	iexplore.exe
PID 268 set thread context of 1136	268	iexplore.exe	iexplore.exe
PID 268 set thread context of 324	268	iexplore.exe	iexplore.exe
PID 268 set thread context of 1996	268	iexplore.exe	iexplore.exe
PID 268 set thread context of 1096	268	iexplore.exe	iexplore.exe
PID 268 set thread context of 744	268	iexplore.exe	iexplore.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

powershell.exeSpecification.exeInstallUtil.exe

pid process

1956 powershell.exe
1472 Specification.exe
1664 InstallUtil.exe
1664 InstallUtil.exe
1664 InstallUtil.exe
1664 InstallUtil.exe
1664 InstallUtil.exe

pid	process
1956	powershell.exe
1472	Specification.exe
1664	InstallUtil.exe
1664	InstallUtil.exe
1664	InstallUtil.exe
1664	InstallUtil.exe
1664	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

Specification.exepowershell.exeiexplore.exeiexplore.exe

description	pid	process
Token: SeDebugPrivilege	1472	Specification.exe
Token: SeDebugPrivilege	1956	powershell.exe
Token: SeDebugPrivilege	268	iexplore.exe
Token: SeDebugPrivilege	1136	iexplore.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

InstallUtil.exeiexplore.exe

pid process

1664 InstallUtil.exe
268 iexplore.exe

pid	process
1664	InstallUtil.exe
268	iexplore.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

Specification.exeInstallUtil.exeiexplore.exe

description	pid	process	target process
PID 1472 wrote to memory of 1956	1472	Specification.exe	powershell.exe
PID 1472 wrote to memory of 1956	1472	Specification.exe	powershell.exe
PID 1472 wrote to memory of 1956	1472	Specification.exe	powershell.exe
PID 1472 wrote to memory of 1956	1472	Specification.exe	powershell.exe
PID 1472 wrote to memory of 1664	1472	Specification.exe	InstallUtil.exe
PID 1472 wrote to memory of 1664	1472	Specification.exe	InstallUtil.exe
PID 1472 wrote to memory of 1664	1472	Specification.exe	InstallUtil.exe
PID 1472 wrote to memory of 1664	1472	Specification.exe	InstallUtil.exe
PID 1472 wrote to memory of 1664	1472	Specification.exe	InstallUtil.exe
PID 1472 wrote to memory of 1664	1472	Specification.exe	InstallUtil.exe
PID 1472 wrote to memory of 1664	1472	Specification.exe	InstallUtil.exe
PID 1472 wrote to memory of 1664	1472	Specification.exe	InstallUtil.exe
PID 1472 wrote to memory of 1664	1472	Specification.exe	InstallUtil.exe
PID 1472 wrote to memory of 1664	1472	Specification.exe	InstallUtil.exe
PID 1472 wrote to memory of 1664	1472	Specification.exe	InstallUtil.exe
PID 1664 wrote to memory of 848	1664	InstallUtil.exe	iexplore.exe
PID 1664 wrote to memory of 848	1664	InstallUtil.exe	iexplore.exe
PID 1664 wrote to memory of 848	1664	InstallUtil.exe	iexplore.exe
PID 1664 wrote to memory of 848	1664	InstallUtil.exe	iexplore.exe
PID 1664 wrote to memory of 848	1664	InstallUtil.exe	iexplore.exe
PID 1664 wrote to memory of 848	1664	InstallUtil.exe	iexplore.exe
PID 1664 wrote to memory of 848	1664	InstallUtil.exe	iexplore.exe
PID 1664 wrote to memory of 848	1664	InstallUtil.exe	iexplore.exe
PID 1664 wrote to memory of 848	1664	InstallUtil.exe	iexplore.exe
PID 1664 wrote to memory of 884	1664	InstallUtil.exe	iexplore.exe
PID 1664 wrote to memory of 884	1664	InstallUtil.exe	iexplore.exe
PID 1664 wrote to memory of 884	1664	InstallUtil.exe	iexplore.exe
PID 1664 wrote to memory of 884	1664	InstallUtil.exe	iexplore.exe
PID 1664 wrote to memory of 884	1664	InstallUtil.exe	iexplore.exe
PID 1664 wrote to memory of 884	1664	InstallUtil.exe	iexplore.exe
PID 1664 wrote to memory of 884	1664	InstallUtil.exe	iexplore.exe
PID 1664 wrote to memory of 884	1664	InstallUtil.exe	iexplore.exe
PID 1664 wrote to memory of 884	1664	InstallUtil.exe	iexplore.exe
PID 1664 wrote to memory of 428	1664	InstallUtil.exe	iexplore.exe
PID 1664 wrote to memory of 428	1664	InstallUtil.exe	iexplore.exe
PID 1664 wrote to memory of 428	1664	InstallUtil.exe	iexplore.exe
PID 1664 wrote to memory of 428	1664	InstallUtil.exe	iexplore.exe
PID 1664 wrote to memory of 428	1664	InstallUtil.exe	iexplore.exe
PID 1664 wrote to memory of 428	1664	InstallUtil.exe	iexplore.exe
PID 1664 wrote to memory of 428	1664	InstallUtil.exe	iexplore.exe
PID 1664 wrote to memory of 428	1664	InstallUtil.exe	iexplore.exe
PID 1664 wrote to memory of 428	1664	InstallUtil.exe	iexplore.exe
PID 1664 wrote to memory of 268	1664	InstallUtil.exe	iexplore.exe
PID 1664 wrote to memory of 268	1664	InstallUtil.exe	iexplore.exe
PID 1664 wrote to memory of 268	1664	InstallUtil.exe	iexplore.exe
PID 1664 wrote to memory of 268	1664	InstallUtil.exe	iexplore.exe
PID 1664 wrote to memory of 268	1664	InstallUtil.exe	iexplore.exe
PID 1664 wrote to memory of 268	1664	InstallUtil.exe	iexplore.exe
PID 1664 wrote to memory of 268	1664	InstallUtil.exe	iexplore.exe
PID 1664 wrote to memory of 268	1664	InstallUtil.exe	iexplore.exe
PID 1664 wrote to memory of 268	1664	InstallUtil.exe	iexplore.exe
PID 268 wrote to memory of 1136	268	iexplore.exe	iexplore.exe
PID 268 wrote to memory of 1136	268	iexplore.exe	iexplore.exe
PID 268 wrote to memory of 1136	268	iexplore.exe	iexplore.exe
PID 268 wrote to memory of 1136	268	iexplore.exe	iexplore.exe
PID 268 wrote to memory of 1136	268	iexplore.exe	iexplore.exe
PID 268 wrote to memory of 1136	268	iexplore.exe	iexplore.exe
PID 268 wrote to memory of 1136	268	iexplore.exe	iexplore.exe
PID 268 wrote to memory of 1136	268	iexplore.exe	iexplore.exe
PID 268 wrote to memory of 1136	268	iexplore.exe	iexplore.exe
PID 268 wrote to memory of 324	268	iexplore.exe	iexplore.exe
PID 268 wrote to memory of 324	268	iexplore.exe	iexplore.exe
PID 268 wrote to memory of 324	268	iexplore.exe	iexplore.exe
PID 268 wrote to memory of 324	268	iexplore.exe	iexplore.exe

C:\Users\Admin\AppData\Local\Temp\Specification.exe
"C:\Users\Admin\AppData\Local\Temp\Specification.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1472

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMgAwAA==
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1956

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
2⤵
- UAC bypass
- Windows security bypass
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1664

C:\Program Files (x86)\Internet Explorer\iexplore.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
3⤵
PID:848

C:\Program Files (x86)\Internet Explorer\iexplore.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
3⤵
PID:884

C:\Program Files (x86)\Internet Explorer\iexplore.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
3⤵
PID:428

C:\Program Files (x86)\Internet Explorer\iexplore.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
3⤵
- Adds policy Run key to start application
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:268

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\Y1F5W2I0-W6V4-G5S1-T8J1-U5Y8L0K337W4\bqrqeitfj0.txt"
4⤵
- Suspicious use of AdjustPrivilegeToken
PID:1136

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\Y1F5W2I0-W6V4-G5S1-T8J1-U5Y8L0K337W4\bqrqeitfj1.txt"
4⤵
- Accesses Microsoft Outlook accounts
PID:324

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\Y1F5W2I0-W6V4-G5S1-T8J1-U5Y8L0K337W4\bqrqeitfj2.txt"
4⤵
PID:1996

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\Y1F5W2I0-W6V4-G5S1-T8J1-U5Y8L0K337W4\bqrqeitfj3.txt"
4⤵
PID:1096

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\Y1F5W2I0-W6V4-G5S1-T8J1-U5Y8L0K337W4\bqrqeitfj4.txt"
4⤵
PID:744

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

2

T1060

Privilege Escalation

Bypass User Account Control

1

T1088

Defense Evasion

Bypass User Account Control

1

T1088

Disabling Security Tools

2

T1089

Modify Registry

4

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Y1F5W2I0-W6V4-G5S1-T8J1-U5Y8L0K337W4\bqrqeitfj2.txt
Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
C:\Users\Admin\AppData\Roaming\Y1F5W2I0-W6V4-G5S1-T8J1-U5Y8L0K337W4\bqrqeitfj4.txt
Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
memory/1472-54-0x0000000000C90000-0x0000000000D48000-memory.dmp

Filesize
736KB

Download
memory/1472-55-0x0000000074F21000-0x0000000074F23000-memory.dmp

Filesize
8KB

Download
memory/1472-56-0x0000000004B10000-0x0000000004BF0000-memory.dmp

Filesize
896KB

Download
memory/1472-57-0x0000000004270000-0x00000000042BC000-memory.dmp

Filesize
304KB

Download
memory/1664-69-0x00000000004010B8-mapping.dmp

Download
memory/1664-63-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1664-64-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1664-66-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1664-68-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1664-74-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1664-75-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1956-62-0x000000006F5C0000-0x000000006FB6B000-memory.dmp

Filesize
5.7MB

Download
memory/1956-61-0x000000006F5C0000-0x000000006FB6B000-memory.dmp

Filesize
5.7MB

Download
memory/1956-60-0x000000006F5C0000-0x000000006FB6B000-memory.dmp

Filesize
5.7MB

Download
memory/1956-58-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads