xpertrat | 79aa4d81cf5455a126a2b7474067f392acc392370fa6ae0a62f7e1e0271775c2

Analysis

max time kernel
122s
max time network
171s
platform
windows7_x64
resource
win7v20210408
submitted
29-06-2021 23:12

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General

Target

dc2492ebf0fca4a52c41433c0e289750.exe
Size

887KB
MD5

dc2492ebf0fca4a52c41433c0e289750
SHA1

00c52f686027dc00d98b1aad58e074bcfd92f765
SHA256

79aa4d81cf5455a126a2b7474067f392acc392370fa6ae0a62f7e1e0271775c2
SHA512

4ea3f881fd61a0b34b723cf3e0f91ab88aed1561d0de1156c83c438e34d214950433fe616a7f57e50034ab72c1acdece1b734be06a4e79bcecb5e3dbcc1bb3ae

Score

10^/10

xpertrat special x evasion persistence rat trojan upx

Malware Config

Extracted

Family

xpertrat

Version

3.0.10

Botnet

special X

mertrerfeyy.duckdns.org:8494

gwtruwhgw.duckdns.org:8494

dfgrttuutii.duckdns.org:8494

Mutex

M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7

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/564-70-0x0000000000400000-0x0000000000443000-memory.dmp	xpertrat
behavioral1/memory/564-71-0x0000000000401364-mapping.dmp	xpertrat

NirSoft MailPassView 2 IoCs

Password recovery tool for various email clients

Processes:

resource	yara_rule
behavioral1/memory/1744-81-0x0000000000411654-mapping.dmp	MailPassView
behavioral1/memory/1744-80-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 2 IoCs

Password recovery tool for various web browsers

Processes:

resource	yara_rule
behavioral1/memory/1056-83-0x0000000000400000-0x0000000000459000-memory.dmp	WebBrowserPassView
behavioral1/memory/1056-84-0x0000000000442F04-mapping.dmp	WebBrowserPassView

Nirsoft 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1744-81-0x0000000000411654-mapping.dmp	Nirsoft
behavioral1/memory/1744-80-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral1/memory/1056-83-0x0000000000400000-0x0000000000459000-memory.dmp	Nirsoft
behavioral1/memory/1056-84-0x0000000000442F04-mapping.dmp	Nirsoft
behavioral1/memory/896-90-0x0000000000400000-0x0000000000415000-memory.dmp	Nirsoft
behavioral1/memory/896-91-0x000000000040C2A8-mapping.dmp	Nirsoft

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\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7 = "C:\\Users\\Admin\\AppData\\Roaming\\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7\\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7.exe"	iexplore.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral1/memory/332-77-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral1/memory/1940-87-0x0000000000400000-0x0000000000416000-memory.dmp	upx

Windows security modification 2 TTPs 1 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

dc2492ebf0fca4a52c41433c0e289750.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UACDisableNotify = "0"	dc2492ebf0fca4a52c41433c0e289750.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-1-5-21-2455352368-1077083310-2879168483-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7 = "C:\\Users\\Admin\\AppData\\Roaming\\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7\\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7.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\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7 = "C:\\Users\\Admin\\AppData\\Roaming\\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7\\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7.exe"	iexplore.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

dc2492ebf0fca4a52c41433c0e289750.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	dc2492ebf0fca4a52c41433c0e289750.exe

Suspicious use of SetThreadContext 7 IoCs

Processes:

dc2492ebf0fca4a52c41433c0e289750.exedc2492ebf0fca4a52c41433c0e289750.exeiexplore.exe

description	pid	process	target process
PID 1652 set thread context of 764	1652	dc2492ebf0fca4a52c41433c0e289750.exe	dc2492ebf0fca4a52c41433c0e289750.exe
PID 764 set thread context of 564	764	dc2492ebf0fca4a52c41433c0e289750.exe	iexplore.exe
PID 564 set thread context of 332	564	iexplore.exe	iexplore.exe
PID 564 set thread context of 1744	564	iexplore.exe	iexplore.exe
PID 564 set thread context of 1056	564	iexplore.exe	iexplore.exe
PID 564 set thread context of 1940	564	iexplore.exe	iexplore.exe
PID 564 set thread context of 896	564	iexplore.exe	iexplore.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

dc2492ebf0fca4a52c41433c0e289750.exe

pid process

764 dc2492ebf0fca4a52c41433c0e289750.exe
764 dc2492ebf0fca4a52c41433c0e289750.exe
764 dc2492ebf0fca4a52c41433c0e289750.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

iexplore.exeiexplore.exe

description pid process

Token: SeDebugPrivilege 564 iexplore.exe
Token: SeDebugPrivilege 332 iexplore.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

dc2492ebf0fca4a52c41433c0e289750.exeiexplore.exe

pid process

764 dc2492ebf0fca4a52c41433c0e289750.exe
564 iexplore.exe

pid	process
764	dc2492ebf0fca4a52c41433c0e289750.exe
764	dc2492ebf0fca4a52c41433c0e289750.exe
764	dc2492ebf0fca4a52c41433c0e289750.exe

description	pid	process
Token: SeDebugPrivilege	564	iexplore.exe
Token: SeDebugPrivilege	332	iexplore.exe

pid	process
764	dc2492ebf0fca4a52c41433c0e289750.exe
564	iexplore.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

dc2492ebf0fca4a52c41433c0e289750.exedc2492ebf0fca4a52c41433c0e289750.exeiexplore.exe

description	pid	process	target process
PID 1652 wrote to memory of 764	1652	dc2492ebf0fca4a52c41433c0e289750.exe	dc2492ebf0fca4a52c41433c0e289750.exe
PID 1652 wrote to memory of 764	1652	dc2492ebf0fca4a52c41433c0e289750.exe	dc2492ebf0fca4a52c41433c0e289750.exe
PID 1652 wrote to memory of 764	1652	dc2492ebf0fca4a52c41433c0e289750.exe	dc2492ebf0fca4a52c41433c0e289750.exe
PID 1652 wrote to memory of 764	1652	dc2492ebf0fca4a52c41433c0e289750.exe	dc2492ebf0fca4a52c41433c0e289750.exe
PID 1652 wrote to memory of 764	1652	dc2492ebf0fca4a52c41433c0e289750.exe	dc2492ebf0fca4a52c41433c0e289750.exe
PID 1652 wrote to memory of 764	1652	dc2492ebf0fca4a52c41433c0e289750.exe	dc2492ebf0fca4a52c41433c0e289750.exe
PID 1652 wrote to memory of 764	1652	dc2492ebf0fca4a52c41433c0e289750.exe	dc2492ebf0fca4a52c41433c0e289750.exe
PID 1652 wrote to memory of 764	1652	dc2492ebf0fca4a52c41433c0e289750.exe	dc2492ebf0fca4a52c41433c0e289750.exe
PID 764 wrote to memory of 564	764	dc2492ebf0fca4a52c41433c0e289750.exe	iexplore.exe
PID 764 wrote to memory of 564	764	dc2492ebf0fca4a52c41433c0e289750.exe	iexplore.exe
PID 764 wrote to memory of 564	764	dc2492ebf0fca4a52c41433c0e289750.exe	iexplore.exe
PID 764 wrote to memory of 564	764	dc2492ebf0fca4a52c41433c0e289750.exe	iexplore.exe
PID 764 wrote to memory of 564	764	dc2492ebf0fca4a52c41433c0e289750.exe	iexplore.exe
PID 764 wrote to memory of 564	764	dc2492ebf0fca4a52c41433c0e289750.exe	iexplore.exe
PID 764 wrote to memory of 564	764	dc2492ebf0fca4a52c41433c0e289750.exe	iexplore.exe
PID 764 wrote to memory of 564	764	dc2492ebf0fca4a52c41433c0e289750.exe	iexplore.exe
PID 764 wrote to memory of 564	764	dc2492ebf0fca4a52c41433c0e289750.exe	iexplore.exe
PID 564 wrote to memory of 332	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 332	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 332	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 332	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 332	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 332	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 332	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 332	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 332	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 1744	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 1744	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 1744	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 1744	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 1744	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 1744	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 1744	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 1744	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 1744	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 1744	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 1056	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 1056	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 1056	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 1056	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 1056	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 1056	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 1056	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 1056	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 1056	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 1056	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 1940	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 1940	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 1940	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 1940	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 1940	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 1940	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 1940	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 1940	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 1940	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 896	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 896	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 896	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 896	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 896	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 896	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 896	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 896	564	iexplore.exe	iexplore.exe
PID 564 wrote to memory of 896	564	iexplore.exe	iexplore.exe

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

Processes:

dc2492ebf0fca4a52c41433c0e289750.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	dc2492ebf0fca4a52c41433c0e289750.exe

C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe
"C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1652

C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe
"{path}"
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:764

C:\Program Files (x86)\Internet Explorer\iexplore.exe
C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.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:564

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7\ldkvohrhq0.txt"
4⤵
- Suspicious use of AdjustPrivilegeToken
PID:332

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7\ldkvohrhq1.txt"
4⤵
PID:1744

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7\ldkvohrhq2.txt"
4⤵
PID:1056

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7\ldkvohrhq3.txt"
4⤵
PID:1940

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7\ldkvohrhq4.txt"
4⤵
PID:896

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Bypass User Account Control

T1088

Defense Evasion

Bypass User Account Control

T1088

Disabling Security Tools

T1089

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7\ldkvohrhq2.txt
MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
C:\Users\Admin\AppData\Roaming\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7\ldkvohrhq4.txt
MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
memory/332-78-0x0000000000423BC0-mapping.dmp

Download
memory/332-77-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/564-71-0x0000000000401364-mapping.dmp

Download
memory/564-76-0x0000000076641000-0x0000000076643000-memory.dmp

Filesize
8KB

Download
memory/564-72-0x0000000000580000-0x00000000006D3000-memory.dmp

Filesize
1.3MB

Download
memory/564-70-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/764-66-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/764-67-0x00000000004010B8-mapping.dmp

Download
memory/896-91-0x000000000040C2A8-mapping.dmp

Download
memory/896-90-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1056-83-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/1056-84-0x0000000000442F04-mapping.dmp

Download
memory/1652-64-0x00000000050D0000-0x000000000514D000-memory.dmp

Filesize
500KB

Download
memory/1652-63-0x0000000000780000-0x0000000000782000-memory.dmp

Filesize
8KB

Download
memory/1652-65-0x0000000000B10000-0x0000000000B3F000-memory.dmp

Filesize
188KB

Download
memory/1652-60-0x0000000000F30000-0x0000000000F31000-memory.dmp

Filesize
4KB

Download
memory/1652-62-0x0000000004D60000-0x0000000004D61000-memory.dmp

Filesize
4KB

Download
memory/1744-80-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1744-81-0x0000000000411654-mapping.dmp

Download
memory/1940-88-0x0000000000413750-mapping.dmp

Download
memory/1940-87-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download