xpertrat | c830683f700f311fe3d533d849cf045b1cbed5ff76debaa6c3dd8f71c0daa535

General

Target

EXCEL.exe
Size

503KB
MD5

cb12b24b0f69225693168e9c35761a1b
SHA1

0f68f676d76e3546d7d625cdb14f0947c59beff5
SHA256

c830683f700f311fe3d533d849cf045b1cbed5ff76debaa6c3dd8f71c0daa535
SHA512

9d53b958b83d8599d0eb1ee4766f03a735cd557290921ded296513e34fd2886ff78382e9a1616613c566d0be9cd5c381fa4de6b86a921d0a33aac1c499d00c65

Score

10^/10

xpertrat test evasion persistence rat trojan

Malware Config

Extracted

Family

xpertrat

Version

3.0.10

Botnet

Test

C2

kapasky-antivirus.firewall-gateway.net:4000

Mutex

L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0

Signatures

UAC bypass 3 TTPs
evasion trojan

Bypass User Account Control
T1088

Disabling Security Tools
T1089

Modify Registry
T1112
Windows security bypass 2 TTPs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112
XpertRAT
XpertRAT is a remote access trojan with various capabilities.
rat xpertrat

XpertRAT Core Payload 2 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1072-72-0x0000000000400000-0x0000000000443000-memory.dmp	xpertrat
behavioral1/memory/1072-73-0x0000000000401364-mapping.dmp	xpertrat

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
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
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	iexplore.exe

Deletes itself 1 IoCs

Processes:

notepad.exe

pid process

840 notepad.exe
Windows security modification 2 TTPs 1 IoCs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112

Processes:

EXCEL.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UACDisableNotify = "0" EXCEL.exe

pid	process
840	notepad.exe

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

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

iexplore.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\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
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	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

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

EXCEL.exe

description ioc process

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

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

Suspicious use of SetThreadContext 2 IoCs

Processes:

EXCEL.exeEXCEL.exe

description	pid	process	target process
PID 1216 set thread context of 548	1216	EXCEL.exe	EXCEL.exe
PID 548 set thread context of 1072	548	EXCEL.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 6 IoCs

Processes:

powershell.exepowershell.exeEXCEL.exeEXCEL.exe

pid process

1540 powershell.exe
268 powershell.exe
1216 EXCEL.exe
1216 EXCEL.exe
548 EXCEL.exe
548 EXCEL.exe

pid	process
1540	powershell.exe
268	powershell.exe
1216	EXCEL.exe
1216	EXCEL.exe
548	EXCEL.exe
548	EXCEL.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

EXCEL.exepowershell.exepowershell.exeiexplore.exe

description	pid	process
Token: SeDebugPrivilege	1216	EXCEL.exe
Token: SeDebugPrivilege	1540	powershell.exe
Token: SeDebugPrivilege	268	powershell.exe
Token: SeDebugPrivilege	1072	iexplore.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

EXCEL.exeiexplore.exe

pid process

548 EXCEL.exe
1072 iexplore.exe

pid	process
548	EXCEL.exe
1072	iexplore.exe

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

EXCEL.exeEXCEL.exeiexplore.exe

description	pid	process	target process
PID 1216 wrote to memory of 1540	1216	EXCEL.exe	powershell.exe
PID 1216 wrote to memory of 1540	1216	EXCEL.exe	powershell.exe
PID 1216 wrote to memory of 1540	1216	EXCEL.exe	powershell.exe
PID 1216 wrote to memory of 1540	1216	EXCEL.exe	powershell.exe
PID 1216 wrote to memory of 268	1216	EXCEL.exe	powershell.exe
PID 1216 wrote to memory of 268	1216	EXCEL.exe	powershell.exe
PID 1216 wrote to memory of 268	1216	EXCEL.exe	powershell.exe
PID 1216 wrote to memory of 268	1216	EXCEL.exe	powershell.exe
PID 1216 wrote to memory of 548	1216	EXCEL.exe	EXCEL.exe
PID 1216 wrote to memory of 548	1216	EXCEL.exe	EXCEL.exe
PID 1216 wrote to memory of 548	1216	EXCEL.exe	EXCEL.exe
PID 1216 wrote to memory of 548	1216	EXCEL.exe	EXCEL.exe
PID 1216 wrote to memory of 548	1216	EXCEL.exe	EXCEL.exe
PID 1216 wrote to memory of 548	1216	EXCEL.exe	EXCEL.exe
PID 1216 wrote to memory of 548	1216	EXCEL.exe	EXCEL.exe
PID 1216 wrote to memory of 548	1216	EXCEL.exe	EXCEL.exe
PID 1216 wrote to memory of 548	1216	EXCEL.exe	EXCEL.exe
PID 1216 wrote to memory of 548	1216	EXCEL.exe	EXCEL.exe
PID 1216 wrote to memory of 548	1216	EXCEL.exe	EXCEL.exe
PID 548 wrote to memory of 1072	548	EXCEL.exe	iexplore.exe
PID 548 wrote to memory of 1072	548	EXCEL.exe	iexplore.exe
PID 548 wrote to memory of 1072	548	EXCEL.exe	iexplore.exe
PID 548 wrote to memory of 1072	548	EXCEL.exe	iexplore.exe
PID 548 wrote to memory of 1072	548	EXCEL.exe	iexplore.exe
PID 548 wrote to memory of 1072	548	EXCEL.exe	iexplore.exe
PID 548 wrote to memory of 1072	548	EXCEL.exe	iexplore.exe
PID 548 wrote to memory of 1072	548	EXCEL.exe	iexplore.exe
PID 548 wrote to memory of 1072	548	EXCEL.exe	iexplore.exe
PID 1072 wrote to memory of 840	1072	iexplore.exe	notepad.exe
PID 1072 wrote to memory of 840	1072	iexplore.exe	notepad.exe
PID 1072 wrote to memory of 840	1072	iexplore.exe	notepad.exe
PID 1072 wrote to memory of 840	1072	iexplore.exe	notepad.exe
PID 1072 wrote to memory of 840	1072	iexplore.exe	notepad.exe

System policy modification 1 TTPs 1 IoCs
evasion

Modify Registry
T1112

Processes:

EXCEL.exe

description ioc process

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

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

C:\Users\Admin\AppData\Local\Temp\EXCEL.exe
"C:\Users\Admin\AppData\Local\Temp\EXCEL.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1216

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Test-NetConnection -TraceRoute twitch.com
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1540

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Start-Sleep -s 5
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:268

C:\Users\Admin\AppData\Local\Temp\EXCEL.exe
C:\Users\Admin\AppData\Local\Temp\EXCEL.exe
2⤵
- 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:548

C:\Program Files (x86)\Internet Explorer\iexplore.exe
C:\Users\Admin\AppData\Local\Temp\EXCEL.exe
3⤵
- 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:1072

C:\Windows\SysWOW64\notepad.exe
notepad.exe
4⤵
- Deletes itself
PID:840

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

3

T1089

Modify Registry

6

T1112

Credential Access

Discovery

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
MD5
8eea4e370fa1026a5938542ec1c8cec8

SHA1
08a885be99d41b9172d6eb4a6be2060b58210f60

SHA256
db628b293b3be87537f0f91e3ba8b1304af0671f231edd6915a9c6f0b1cdecae

SHA512
af0b84c4b9adecd442f761f852c25c9208e50b170b6d18cb5f26d9d6c39b94edd080ed050546520855d5b8f1863c6aa9e24a2f964aa96f67af6da281ef04f582

Download Submit
memory/268-62-0x0000000000000000-mapping.dmp

Download
memory/268-65-0x00000000023B0000-0x0000000002FFA000-memory.dmp

Filesize
12.3MB

Download
memory/548-68-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/548-69-0x00000000004010B8-mapping.dmp

Download
memory/840-77-0x0000000000000000-mapping.dmp

Download
memory/1072-74-0x0000000000450000-0x00000000005A3000-memory.dmp

Filesize
1.3MB

Download
memory/1072-73-0x0000000000401364-mapping.dmp

Download
memory/1072-72-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/1216-58-0x0000000004880000-0x0000000004881000-memory.dmp

Filesize
4KB

Download
memory/1216-66-0x0000000004820000-0x000000000486F000-memory.dmp

Filesize
316KB

Download
memory/1216-67-0x0000000004160000-0x0000000004190000-memory.dmp

Filesize
192KB

Download
memory/1216-53-0x0000000000850000-0x0000000000851000-memory.dmp

Filesize
4KB

Download
memory/1216-55-0x0000000075B11000-0x0000000075B13000-memory.dmp

Filesize
8KB

Download
memory/1540-56-0x0000000000000000-mapping.dmp

Download
memory/1540-59-0x00000000023B0000-0x0000000002FFA000-memory.dmp

Filesize
12.3MB

Download
memory/1540-61-0x00000000023B0000-0x0000000002FFA000-memory.dmp

Filesize
12.3MB

Download
memory/1540-60-0x00000000023B0000-0x0000000002FFA000-memory.dmp

Filesize
12.3MB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads