xpertrat | bda50ff249b947617d9551c717e78131ed32bf77db9dc5b7591d3e1af6cb2f1a

General

Target

gunzipped.exe
Size

773KB
MD5

fd5a0326a71e89b2ff144ea336fac113
SHA1

aa6b046a0ed889b59cdb0ee9a957c4c6d542e233
SHA256

bda50ff249b947617d9551c717e78131ed32bf77db9dc5b7591d3e1af6cb2f1a
SHA512

51a75041b8fe9dab9cb51e28b39a497eff7ccb4c81311223ec92492cd3ddcfb6bc91ebf555f61a8b25423d81fd692920b44980ab306acb3b8451b633f297b800

Score

10^/10

xpertrat collection evasion persistence rat trojan

Malware Config

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

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\Q4V8N5Y3-O0F7-P7T5-W113-K7R6L4T0H6H6 = "C:\\Users\\Admin\\AppData\\Roaming\\Q4V8N5Y3-O0F7-P7T5-W113-K7R6L4T0H6H6\\Q4V8N5Y3-O0F7-P7T5-W113-K7R6L4T0H6H6.exe"	iexplore.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

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0"	gunzipped.exe

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

Processes:

iexplore.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	iexplore.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-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Q4V8N5Y3-O0F7-P7T5-W113-K7R6L4T0H6H6 = "C:\\Users\\Admin\\AppData\\Roaming\\Q4V8N5Y3-O0F7-P7T5-W113-K7R6L4T0H6H6\\Q4V8N5Y3-O0F7-P7T5-W113-K7R6L4T0H6H6.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\Q4V8N5Y3-O0F7-P7T5-W113-K7R6L4T0H6H6 = "C:\\Users\\Admin\\AppData\\Roaming\\Q4V8N5Y3-O0F7-P7T5-W113-K7R6L4T0H6H6\\Q4V8N5Y3-O0F7-P7T5-W113-K7R6L4T0H6H6.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

Program crash 4 IoCs

Processes:

WerFault.exeWerFault.exeWerFault.exeWerFault.exe

pid	pid_target	process	target process
4272	2096	WerFault.exe	iexplore.exe
2308	3408	WerFault.exe	iexplore.exe
4716	3408	WerFault.exe	iexplore.exe
4284	3160	WerFault.exe	iexplore.exe

Suspicious use of SetThreadContext 10 IoCs

Processes:

gunzipped.exegunzipped.exeiexplore.exe

description	pid	process	target process
PID 1624 set thread context of 520	1624	gunzipped.exe	gunzipped.exe
PID 520 set thread context of 2276	520	gunzipped.exe	iexplore.exe
PID 2276 set thread context of 2992	2276	iexplore.exe	iexplore.exe
PID 2276 set thread context of 4016	2276	iexplore.exe	iexplore.exe
PID 2276 set thread context of 2096	2276	iexplore.exe	iexplore.exe
PID 2276 set thread context of 3092	2276	iexplore.exe	iexplore.exe
PID 2276 set thread context of 3408	2276	iexplore.exe	iexplore.exe
PID 2276 set thread context of 3160	2276	iexplore.exe	iexplore.exe
PID 2276 set thread context of 5060	2276	iexplore.exe	iexplore.exe
PID 2276 set thread context of 5108	2276	iexplore.exe	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

gunzipped.exeiexplore.exeiexplore.exe

pid process

520 gunzipped.exe
520 gunzipped.exe
2992 iexplore.exe
2992 iexplore.exe
520 gunzipped.exe
520 gunzipped.exe
3092 iexplore.exe
3092 iexplore.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

iexplore.exeiexplore.exe

description pid process

Token: SeDebugPrivilege 2276 iexplore.exe
Token: SeDebugPrivilege 2992 iexplore.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

gunzipped.exeiexplore.exe

pid process

520 gunzipped.exe
2276 iexplore.exe

pid	process
520	gunzipped.exe
520	gunzipped.exe
2992	iexplore.exe
2992	iexplore.exe
520	gunzipped.exe
520	gunzipped.exe
3092	iexplore.exe
3092	iexplore.exe

description	pid	process
Token: SeDebugPrivilege	2276	iexplore.exe
Token: SeDebugPrivilege	2992	iexplore.exe

pid	process
520	gunzipped.exe
2276	iexplore.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

gunzipped.exegunzipped.exeiexplore.exe

description	pid	process	target process
PID 1624 wrote to memory of 520	1624	gunzipped.exe	gunzipped.exe
PID 1624 wrote to memory of 520	1624	gunzipped.exe	gunzipped.exe
PID 1624 wrote to memory of 520	1624	gunzipped.exe	gunzipped.exe
PID 1624 wrote to memory of 520	1624	gunzipped.exe	gunzipped.exe
PID 1624 wrote to memory of 520	1624	gunzipped.exe	gunzipped.exe
PID 1624 wrote to memory of 520	1624	gunzipped.exe	gunzipped.exe
PID 1624 wrote to memory of 520	1624	gunzipped.exe	gunzipped.exe
PID 520 wrote to memory of 2276	520	gunzipped.exe	iexplore.exe
PID 520 wrote to memory of 2276	520	gunzipped.exe	iexplore.exe
PID 520 wrote to memory of 2276	520	gunzipped.exe	iexplore.exe
PID 520 wrote to memory of 2276	520	gunzipped.exe	iexplore.exe
PID 520 wrote to memory of 2276	520	gunzipped.exe	iexplore.exe
PID 520 wrote to memory of 2276	520	gunzipped.exe	iexplore.exe
PID 520 wrote to memory of 2276	520	gunzipped.exe	iexplore.exe
PID 520 wrote to memory of 2276	520	gunzipped.exe	iexplore.exe
PID 2276 wrote to memory of 2992	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 2992	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 2992	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 2992	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 2992	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 2992	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 2992	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 2992	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 4016	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 4016	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 4016	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 4016	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 4016	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 4016	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 4016	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 4016	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 4016	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 2096	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 2096	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 2096	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 2096	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 2096	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 2096	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 2096	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 2096	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 2096	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 3092	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 3092	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 3092	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 3092	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 3092	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 3092	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 3092	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 3092	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 3092	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 3408	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 3408	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 3408	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 3408	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 3408	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 3408	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 3408	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 3408	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 3160	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 3160	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 3160	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 3160	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 3160	2276	iexplore.exe	iexplore.exe
PID 2276 wrote to memory of 3160	2276	iexplore.exe	iexplore.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:1624

C:\Users\Admin\AppData\Local\Temp\gunzipped.exe
"C:\Users\Admin\AppData\Local\Temp\gunzipped.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:520

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 SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2276

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\Q4V8N5Y3-O0F7-P7T5-W113-K7R6L4T0H6H6\olhvsheey0.txt"
4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2992

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\Q4V8N5Y3-O0F7-P7T5-W113-K7R6L4T0H6H6\olhvsheey1.txt"
4⤵
- Accesses Microsoft Outlook accounts
PID:4016

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\Q4V8N5Y3-O0F7-P7T5-W113-K7R6L4T0H6H6\olhvsheey2.txt"
4⤵
PID:2096

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2096 -s 84
5⤵
- Program crash
PID:4272

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\Q4V8N5Y3-O0F7-P7T5-W113-K7R6L4T0H6H6\olhvsheey2.txt"
4⤵
- Suspicious behavior: EnumeratesProcesses
PID:3092

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\Q4V8N5Y3-O0F7-P7T5-W113-K7R6L4T0H6H6\olhvsheey3.txt"
4⤵
PID:3408

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3408 -s 92
5⤵
- Program crash
PID:2308

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3408 -s 100
5⤵
- Program crash
PID:4716

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\Q4V8N5Y3-O0F7-P7T5-W113-K7R6L4T0H6H6\olhvsheey3.txt"
4⤵
PID:3160

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3160 -s 84
5⤵
- Program crash
PID:4284

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\Q4V8N5Y3-O0F7-P7T5-W113-K7R6L4T0H6H6\olhvsheey3.txt"
4⤵
PID:5060

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\Q4V8N5Y3-O0F7-P7T5-W113-K7R6L4T0H6H6\olhvsheey4.txt"
4⤵
PID:5108

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 180 -p 2096 -ip 2096
1⤵
PID:1420

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 200 -p 3408 -ip 3408
1⤵
PID:3788

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3408 -ip 3408
1⤵
PID:216

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3160 -ip 3160
1⤵
PID:4676

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

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\Q4V8N5Y3-O0F7-P7T5-W113-K7R6L4T0H6H6\olhvsheey2.txt
MD5
f94dc819ca773f1e3cb27abbc9e7fa27

SHA1
9a7700efadc5ea09ab288544ef1e3cd876255086

SHA256
a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92

SHA512
72a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196

Download Submit
C:\Users\Admin\AppData\Roaming\Q4V8N5Y3-O0F7-P7T5-W113-K7R6L4T0H6H6\olhvsheey4.txt
MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
memory/520-137-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/520-139-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1624-130-0x0000000000DC0000-0x0000000000E88000-memory.dmp

Filesize
800KB

Download
memory/1624-131-0x0000000005E40000-0x00000000063E4000-memory.dmp

Filesize
5.6MB

Download
memory/1624-132-0x0000000005890000-0x0000000005922000-memory.dmp

Filesize
584KB

Download
memory/1624-133-0x0000000075370000-0x0000000075B20000-memory.dmp

Filesize
7.7MB

Download
memory/1624-134-0x0000000005840000-0x000000000584A000-memory.dmp

Filesize
40KB

Download
memory/1624-135-0x0000000005790000-0x0000000005822000-memory.dmp

Filesize
584KB

Download
memory/1624-136-0x00000000095A0000-0x000000000963C000-memory.dmp

Filesize
624KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads