xpertrat | e4b8184869d65a34fb9e0fb43d8b6c252cb153f7139485e3fde6d02cd6898242

Analysis

max time kernel
73s
max time network
132s
platform
windows7_x64
resource
win7-en-20210920
submitted
29-09-2021 07:08

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General

Target

452ea764a4f629c9c4d6880aa215928a.exe
Size

433KB
MD5

452ea764a4f629c9c4d6880aa215928a
SHA1

9b69fcd3856d302da2506e84f220b26dd926e061
SHA256

e4b8184869d65a34fb9e0fb43d8b6c252cb153f7139485e3fde6d02cd6898242
SHA512

c0898afc925e5a6099ca6ba8468aa6ef528b94f921036db0445dd5b2f575fbf4bb25994196fe4af387c43542720215b29422e241e6da172aad22c8824e2281a0

Score

10^/10

xpertrat test evasion persistence rat trojan upx

Malware Config

Extracted

Family

xpertrat

Version

3.0.10

Botnet

Test

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/896-63-0x0000000000400000-0x0000000000443000-memory.dmp	xpertrat
behavioral1/memory/896-64-0x0000000000401364-mapping.dmp	xpertrat

NirSoft MailPassView 2 IoCs

Password recovery tool for various email clients

Processes:

resource	yara_rule
behavioral1/memory/912-77-0x0000000000411654-mapping.dmp	MailPassView
behavioral1/memory/912-76-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 2 IoCs

Password recovery tool for various web browsers

Processes:

resource	yara_rule
behavioral1/memory/1368-80-0x0000000000442F04-mapping.dmp	WebBrowserPassView
behavioral1/memory/1368-79-0x0000000000400000-0x0000000000459000-memory.dmp	WebBrowserPassView

Nirsoft 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/912-77-0x0000000000411654-mapping.dmp	Nirsoft
behavioral1/memory/912-76-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral1/memory/1368-80-0x0000000000442F04-mapping.dmp	Nirsoft
behavioral1/memory/1368-79-0x0000000000400000-0x0000000000459000-memory.dmp	Nirsoft
behavioral1/memory/1240-88-0x0000000000400000-0x0000000000415000-memory.dmp	Nirsoft
behavioral1/memory/1240-89-0x000000000040C2A8-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\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0 = "C:\\Users\\Admin\\AppData\\Roaming\\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0.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/576-73-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral1/memory/1784-85-0x0000000000400000-0x0000000000416000-memory.dmp	upx

Deletes itself 1 IoCs

Processes:

notepad.exe

pid process

1572 notepad.exe

pid	process
1572	notepad.exe

Windows security modification 2 TTPs 1 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

452ea764a4f629c9c4d6880aa215928a.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UACDisableNotify = "0"	452ea764a4f629c9c4d6880aa215928a.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:

452ea764a4f629c9c4d6880aa215928a.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	452ea764a4f629c9c4d6880aa215928a.exe

Suspicious use of SetThreadContext 9 IoCs

Processes:

452ea764a4f629c9c4d6880aa215928a.exe452ea764a4f629c9c4d6880aa215928a.exeiexplore.exe

description	pid	process	target process
PID 612 set thread context of 964	612	452ea764a4f629c9c4d6880aa215928a.exe	452ea764a4f629c9c4d6880aa215928a.exe
PID 964 set thread context of 896	964	452ea764a4f629c9c4d6880aa215928a.exe	iexplore.exe
PID 896 set thread context of 856	896	iexplore.exe	iexplore.exe
PID 896 set thread context of 576	896	iexplore.exe	iexplore.exe
PID 896 set thread context of 912	896	iexplore.exe	iexplore.exe
PID 896 set thread context of 1368	896	iexplore.exe	iexplore.exe
PID 896 set thread context of 1648	896	iexplore.exe	iexplore.exe
PID 896 set thread context of 1784	896	iexplore.exe	iexplore.exe
PID 896 set thread context of 1240	896	iexplore.exe	iexplore.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

452ea764a4f629c9c4d6880aa215928a.exe452ea764a4f629c9c4d6880aa215928a.exe

pid process

612 452ea764a4f629c9c4d6880aa215928a.exe
964 452ea764a4f629c9c4d6880aa215928a.exe
964 452ea764a4f629c9c4d6880aa215928a.exe

pid	process
612	452ea764a4f629c9c4d6880aa215928a.exe
964	452ea764a4f629c9c4d6880aa215928a.exe
964	452ea764a4f629c9c4d6880aa215928a.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

452ea764a4f629c9c4d6880aa215928a.exeiexplore.exeiexplore.exe

description	pid	process
Token: SeDebugPrivilege	612	452ea764a4f629c9c4d6880aa215928a.exe
Token: SeDebugPrivilege	896	iexplore.exe
Token: SeDebugPrivilege	576	iexplore.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

452ea764a4f629c9c4d6880aa215928a.exeiexplore.exe

pid process

964 452ea764a4f629c9c4d6880aa215928a.exe
896 iexplore.exe

pid	process
964	452ea764a4f629c9c4d6880aa215928a.exe
896	iexplore.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

452ea764a4f629c9c4d6880aa215928a.exe452ea764a4f629c9c4d6880aa215928a.exeiexplore.exe

description	pid	process	target process
PID 612 wrote to memory of 964	612	452ea764a4f629c9c4d6880aa215928a.exe	452ea764a4f629c9c4d6880aa215928a.exe
PID 612 wrote to memory of 964	612	452ea764a4f629c9c4d6880aa215928a.exe	452ea764a4f629c9c4d6880aa215928a.exe
PID 612 wrote to memory of 964	612	452ea764a4f629c9c4d6880aa215928a.exe	452ea764a4f629c9c4d6880aa215928a.exe
PID 612 wrote to memory of 964	612	452ea764a4f629c9c4d6880aa215928a.exe	452ea764a4f629c9c4d6880aa215928a.exe
PID 612 wrote to memory of 964	612	452ea764a4f629c9c4d6880aa215928a.exe	452ea764a4f629c9c4d6880aa215928a.exe
PID 612 wrote to memory of 964	612	452ea764a4f629c9c4d6880aa215928a.exe	452ea764a4f629c9c4d6880aa215928a.exe
PID 612 wrote to memory of 964	612	452ea764a4f629c9c4d6880aa215928a.exe	452ea764a4f629c9c4d6880aa215928a.exe
PID 612 wrote to memory of 964	612	452ea764a4f629c9c4d6880aa215928a.exe	452ea764a4f629c9c4d6880aa215928a.exe
PID 964 wrote to memory of 896	964	452ea764a4f629c9c4d6880aa215928a.exe	iexplore.exe
PID 964 wrote to memory of 896	964	452ea764a4f629c9c4d6880aa215928a.exe	iexplore.exe
PID 964 wrote to memory of 896	964	452ea764a4f629c9c4d6880aa215928a.exe	iexplore.exe
PID 964 wrote to memory of 896	964	452ea764a4f629c9c4d6880aa215928a.exe	iexplore.exe
PID 964 wrote to memory of 896	964	452ea764a4f629c9c4d6880aa215928a.exe	iexplore.exe
PID 964 wrote to memory of 896	964	452ea764a4f629c9c4d6880aa215928a.exe	iexplore.exe
PID 964 wrote to memory of 896	964	452ea764a4f629c9c4d6880aa215928a.exe	iexplore.exe
PID 964 wrote to memory of 896	964	452ea764a4f629c9c4d6880aa215928a.exe	iexplore.exe
PID 964 wrote to memory of 896	964	452ea764a4f629c9c4d6880aa215928a.exe	iexplore.exe
PID 896 wrote to memory of 1572	896	iexplore.exe	notepad.exe
PID 896 wrote to memory of 1572	896	iexplore.exe	notepad.exe
PID 896 wrote to memory of 1572	896	iexplore.exe	notepad.exe
PID 896 wrote to memory of 1572	896	iexplore.exe	notepad.exe
PID 896 wrote to memory of 1572	896	iexplore.exe	notepad.exe
PID 896 wrote to memory of 856	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 856	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 856	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 856	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 856	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 856	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 856	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 856	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 856	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 576	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 576	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 576	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 576	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 576	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 576	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 576	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 576	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 576	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 912	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 912	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 912	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 912	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 912	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 912	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 912	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 912	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 912	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 912	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 1368	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 1368	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 1368	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 1368	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 1368	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 1368	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 1368	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 1368	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 1368	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 1368	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 1648	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 1648	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 1648	896	iexplore.exe	iexplore.exe
PID 896 wrote to memory of 1648	896	iexplore.exe	iexplore.exe

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

Processes:

452ea764a4f629c9c4d6880aa215928a.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	452ea764a4f629c9c4d6880aa215928a.exe

C:\Users\Admin\AppData\Local\Temp\452ea764a4f629c9c4d6880aa215928a.exe
"C:\Users\Admin\AppData\Local\Temp\452ea764a4f629c9c4d6880aa215928a.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:612

C:\Users\Admin\AppData\Local\Temp\452ea764a4f629c9c4d6880aa215928a.exe
C:\Users\Admin\AppData\Local\Temp\452ea764a4f629c9c4d6880aa215928a.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:964

C:\Program Files (x86)\Internet Explorer\iexplore.exe
C:\Users\Admin\AppData\Local\Temp\452ea764a4f629c9c4d6880aa215928a.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:896

C:\Windows\SysWOW64\notepad.exe
notepad.exe
4⤵
- Deletes itself
PID:1572

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\mqzahghym0.txt"
4⤵
PID:856

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\mqzahghym0.txt"
4⤵
- Suspicious use of AdjustPrivilegeToken
PID:576

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\mqzahghym1.txt"
4⤵
PID:912

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\mqzahghym2.txt"
4⤵
PID:1368

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\mqzahghym3.txt"
4⤵
PID:1648

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\mqzahghym3.txt"
4⤵
PID:1784

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\mqzahghym4.txt"
4⤵
PID:1240

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\mqzahghym2.txt
MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\mqzahghym4.txt
MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
memory/576-74-0x0000000000423BC0-mapping.dmp

Download
memory/576-73-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/612-57-0x0000000000420000-0x0000000000469000-memory.dmp

Filesize
292KB

Download
memory/612-56-0x0000000000590000-0x0000000000591000-memory.dmp

Filesize
4KB

Download
memory/612-58-0x00000000005D0000-0x0000000000600000-memory.dmp

Filesize
192KB

Download
memory/612-54-0x0000000000DE0000-0x0000000000DE1000-memory.dmp

Filesize
4KB

Download
memory/856-72-0x0000000000423BC0-mapping.dmp

Download
memory/896-64-0x0000000000401364-mapping.dmp

Download
memory/896-65-0x0000000000450000-0x00000000005A3000-memory.dmp

Filesize
1.3MB

Download
memory/896-63-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/912-76-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/912-77-0x0000000000411654-mapping.dmp

Download
memory/964-59-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/964-60-0x00000000004010B8-mapping.dmp

Download
memory/1240-88-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1240-89-0x000000000040C2A8-mapping.dmp

Download
memory/1368-79-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/1368-80-0x0000000000442F04-mapping.dmp

Download
memory/1572-69-0x0000000075651000-0x0000000075653000-memory.dmp

Filesize
8KB

Download
memory/1572-68-0x0000000000000000-mapping.dmp

Download
memory/1648-84-0x0000000000413750-mapping.dmp

Download
memory/1784-85-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/1784-86-0x0000000000413750-mapping.dmp

Download