xpertrat | 88b664781d7b10fc5130cf6453fbde5b26b129f0e2f5e002d62be833b0fcd020

General

Target

gunzipped.exe
Size

765KB
MD5

2f7687172e06c6868282ba3e1428aaeb
SHA1

3c280b0e41b375b1748884eb1e3413c79f8c5c9a
SHA256

88b664781d7b10fc5130cf6453fbde5b26b129f0e2f5e002d62be833b0fcd020
SHA512

952301e069759ffb1c7cb71088525cd7c3460398e251d9c375a8dcb9123d3cf41e1fc4f19114ab7eae849acb3c044ccba39ec28184bb7f5197b4a3acbc406151

Score

10^/10

xpertrat test evasion persistence rat trojan

Malware Config

Extracted

Family

xpertrat

Version

3.0.10

Botnet

Test

C2

185.244.30.211:4576

Mutex

G2L6E3O1-E775-G5K4-R4C2-P5F660S1R4A8

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 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1108-15-0x0000000000400000-0x0000000000443000-memory.dmp	xpertrat
behavioral1/memory/1108-16-0x0000000000401364-mapping.dmp	xpertrat
behavioral1/memory/1108-17-0x0000000000400000-0x0000000000443000-memory.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
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\G2L6E3O1-E775-G5K4-R4C2-P5F660S1R4A8 = "C:\\Users\\Admin\\AppData\\Roaming\\G2L6E3O1-E775-G5K4-R4C2-P5F660S1R4A8\\G2L6E3O1-E775-G5K4-R4C2-P5F660S1R4A8.exe"	iexplore.exe

Deletes itself 1 IoCs

Processes:

notepad.exe

pid process

1712 notepad.exe
Windows security modification 2 TTPs 1 IoCs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112

Processes:

gunzipped.exe

description ioc process

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

pid	process
1712	notepad.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UACDisableNotify = "0"	gunzipped.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\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	iexplore.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\G2L6E3O1-E775-G5K4-R4C2-P5F660S1R4A8 = "C:\\Users\\Admin\\AppData\\Roaming\\G2L6E3O1-E775-G5K4-R4C2-P5F660S1R4A8\\G2L6E3O1-E775-G5K4-R4C2-P5F660S1R4A8.exe"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4210623931-3856158591-1213714290-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4210623931-3856158591-1213714290-1000\Software\Microsoft\Windows\CurrentVersion\Run\G2L6E3O1-E775-G5K4-R4C2-P5F660S1R4A8 = "C:\\Users\\Admin\\AppData\\Roaming\\G2L6E3O1-E775-G5K4-R4C2-P5F660S1R4A8\\G2L6E3O1-E775-G5K4-R4C2-P5F660S1R4A8.exe"	iexplore.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

gunzipped.exe

description ioc process

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

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

Suspicious use of SetThreadContext 4 IoCs

Processes:

gunzipped.exegunzipped.exe

description	pid	process	target process
PID 1880 set thread context of 796	1880	gunzipped.exe	gunzipped.exe
PID 796 set thread context of 1468	796	gunzipped.exe	iexplore.exe
PID 796 set thread context of 1048	796	gunzipped.exe	iexplore.exe
PID 796 set thread context of 1108	796	gunzipped.exe	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

gunzipped.exe

pid process

796 gunzipped.exe
796 gunzipped.exe
796 gunzipped.exe
796 gunzipped.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

iexplore.exe

description pid process

Token: SeDebugPrivilege 1108 iexplore.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

gunzipped.exeiexplore.exe

pid process

796 gunzipped.exe
1108 iexplore.exe

pid	process
796	gunzipped.exe
796	gunzipped.exe
796	gunzipped.exe
796	gunzipped.exe

description	pid	process
Token: SeDebugPrivilege	1108	iexplore.exe

pid	process
796	gunzipped.exe
1108	iexplore.exe

Suspicious use of WriteProcessMemory 40 IoCs

Processes:

gunzipped.exegunzipped.exeiexplore.exe

description	pid	process	target process
PID 1880 wrote to memory of 796	1880	gunzipped.exe	gunzipped.exe
PID 1880 wrote to memory of 796	1880	gunzipped.exe	gunzipped.exe
PID 1880 wrote to memory of 796	1880	gunzipped.exe	gunzipped.exe
PID 1880 wrote to memory of 796	1880	gunzipped.exe	gunzipped.exe
PID 1880 wrote to memory of 796	1880	gunzipped.exe	gunzipped.exe
PID 1880 wrote to memory of 796	1880	gunzipped.exe	gunzipped.exe
PID 1880 wrote to memory of 796	1880	gunzipped.exe	gunzipped.exe
PID 1880 wrote to memory of 796	1880	gunzipped.exe	gunzipped.exe
PID 796 wrote to memory of 1468	796	gunzipped.exe	iexplore.exe
PID 796 wrote to memory of 1468	796	gunzipped.exe	iexplore.exe
PID 796 wrote to memory of 1468	796	gunzipped.exe	iexplore.exe
PID 796 wrote to memory of 1468	796	gunzipped.exe	iexplore.exe
PID 796 wrote to memory of 1468	796	gunzipped.exe	iexplore.exe
PID 796 wrote to memory of 1468	796	gunzipped.exe	iexplore.exe
PID 796 wrote to memory of 1468	796	gunzipped.exe	iexplore.exe
PID 796 wrote to memory of 1468	796	gunzipped.exe	iexplore.exe
PID 796 wrote to memory of 1468	796	gunzipped.exe	iexplore.exe
PID 796 wrote to memory of 1048	796	gunzipped.exe	iexplore.exe
PID 796 wrote to memory of 1048	796	gunzipped.exe	iexplore.exe
PID 796 wrote to memory of 1048	796	gunzipped.exe	iexplore.exe
PID 796 wrote to memory of 1048	796	gunzipped.exe	iexplore.exe
PID 796 wrote to memory of 1048	796	gunzipped.exe	iexplore.exe
PID 796 wrote to memory of 1048	796	gunzipped.exe	iexplore.exe
PID 796 wrote to memory of 1048	796	gunzipped.exe	iexplore.exe
PID 796 wrote to memory of 1048	796	gunzipped.exe	iexplore.exe
PID 796 wrote to memory of 1048	796	gunzipped.exe	iexplore.exe
PID 796 wrote to memory of 1108	796	gunzipped.exe	iexplore.exe
PID 796 wrote to memory of 1108	796	gunzipped.exe	iexplore.exe
PID 796 wrote to memory of 1108	796	gunzipped.exe	iexplore.exe
PID 796 wrote to memory of 1108	796	gunzipped.exe	iexplore.exe
PID 796 wrote to memory of 1108	796	gunzipped.exe	iexplore.exe
PID 796 wrote to memory of 1108	796	gunzipped.exe	iexplore.exe
PID 796 wrote to memory of 1108	796	gunzipped.exe	iexplore.exe
PID 796 wrote to memory of 1108	796	gunzipped.exe	iexplore.exe
PID 796 wrote to memory of 1108	796	gunzipped.exe	iexplore.exe
PID 1108 wrote to memory of 1712	1108	iexplore.exe	notepad.exe
PID 1108 wrote to memory of 1712	1108	iexplore.exe	notepad.exe
PID 1108 wrote to memory of 1712	1108	iexplore.exe	notepad.exe
PID 1108 wrote to memory of 1712	1108	iexplore.exe	notepad.exe
PID 1108 wrote to memory of 1712	1108	iexplore.exe	notepad.exe

System policy modification 1 TTPs 1 IoCs
evasion

Modify Registry
T1112

Processes:

gunzipped.exe

description ioc process

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

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

C:\Users\Admin\AppData\Local\Temp\gunzipped.exe
"C:\Users\Admin\AppData\Local\Temp\gunzipped.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1880

C:\Users\Admin\AppData\Local\Temp\gunzipped.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:796

C:\Program Files (x86)\Internet Explorer\iexplore.exe
C:\Users\Admin\AppData\Local\Temp\gunzipped.exe
3⤵
PID:1468

C:\Program Files (x86)\Internet Explorer\iexplore.exe
C:\Users\Admin\AppData\Local\Temp\gunzipped.exe
3⤵
PID:1048

C:\Program Files (x86)\Internet Explorer\iexplore.exe
C:\Users\Admin\AppData\Local\Temp\gunzipped.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:1108

C:\Windows\SysWOW64\notepad.exe
notepad.exe
4⤵
- Deletes itself
PID:1712

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

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/796-6-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/796-22-0x0000000002AA0000-0x0000000002AA4000-memory.dmp

Filesize
16KB

Download
memory/796-21-0x0000000000970000-0x0000000000974000-memory.dmp

Filesize
16KB

Download
memory/796-7-0x00000000004010B8-mapping.dmp

Download
memory/1048-14-0x0000000000401364-mapping.dmp

Download
memory/1108-15-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/1108-16-0x0000000000401364-mapping.dmp

Download
memory/1108-17-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/1468-12-0x0000000000401364-mapping.dmp

Download
memory/1712-20-0x0000000000000000-mapping.dmp

Download
memory/1880-5-0x0000000007660000-0x00000000076D7000-memory.dmp

Filesize
476KB

Download
memory/1880-4-0x00000000004B0000-0x00000000004C6000-memory.dmp

Filesize
88KB

Download
memory/1880-0-0x00000000749F0000-0x00000000750DE000-memory.dmp

Filesize
6.9MB

Download
memory/1880-3-0x0000000001220000-0x00000000012A5000-memory.dmp

Filesize
532KB

Download
memory/1880-1-0x00000000013A0000-0x00000000013A1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads