xpertrat | 21553a3434749569bbb6dbf77da2d47a16828a09fdbbb93108b9cf314fb42add

General

Target

RFQ#00439811.exe
Size

452KB
MD5

ebd23085bae2a8453314f15e526ecc50
SHA1

085915cc9d5fae22d24e9451228f305ab8345d44
SHA256

21553a3434749569bbb6dbf77da2d47a16828a09fdbbb93108b9cf314fb42add
SHA512

71409206d41f208c1df82d84cc5a039d845ec5a3bd5048c2b99b558d3b0ba450a6f6b439629629804b989700b25acd5140bd9a76a9b934c377026c8171992353

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
Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

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\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6 = "C:\\Users\\Admin\\AppData\\Roaming\\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6\\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6.exe"	iexplore.exe

Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

RFQ#00439811.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	RFQ#00439811.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	RFQ#00439811.exe

Windows security modification 2 TTPs 1 IoCs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112

Processes:

RFQ#00439811.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0" RFQ#00439811.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0"	RFQ#00439811.exe

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

Processes:

iexplore.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\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-1-5-21-941723256-3451054534-3089625102-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows\CurrentVersion\Run\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6 = "C:\\Users\\Admin\\AppData\\Roaming\\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6\\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6.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\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6 = "C:\\Users\\Admin\\AppData\\Roaming\\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6\\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6.exe"	iexplore.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

RFQ#00439811.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" RFQ#00439811.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	RFQ#00439811.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

RFQ#00439811.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	RFQ#00439811.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum\0	RFQ#00439811.exe

Program crash 4 IoCs

Processes:

WerFault.exeWerFault.exeWerFault.exeWerFault.exe

pid	pid_target	process	target process
368	1092	WerFault.exe	iexplore.exe
1188	668	WerFault.exe	iexplore.exe
3600	3972	WerFault.exe	iexplore.exe
4008	1700	WerFault.exe	iexplore.exe

Suspicious use of SetThreadContext 11 IoCs

Processes:

RFQ#00439811.exeRFQ#00439811.exeiexplore.exe

description	pid	process	target process
PID 2808 set thread context of 3264	2808	RFQ#00439811.exe	RFQ#00439811.exe
PID 3264 set thread context of 2876	3264	RFQ#00439811.exe	iexplore.exe
PID 2876 set thread context of 1564	2876	iexplore.exe	iexplore.exe
PID 2876 set thread context of 1092	2876	iexplore.exe	iexplore.exe
PID 2876 set thread context of 668	2876	iexplore.exe	iexplore.exe
PID 2876 set thread context of 2860	2876	iexplore.exe	iexplore.exe
PID 2876 set thread context of 3972	2876	iexplore.exe	iexplore.exe
PID 2876 set thread context of 880	2876	iexplore.exe	iexplore.exe
PID 2876 set thread context of 1700	2876	iexplore.exe	iexplore.exe
PID 2876 set thread context of 1924	2876	iexplore.exe	iexplore.exe
PID 2876 set thread context of 2156	2876	iexplore.exe	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

RFQ#00439811.exeiexplore.exeiexplore.exe

pid	process
3264	RFQ#00439811.exe
3264	RFQ#00439811.exe
3264	RFQ#00439811.exe
3264	RFQ#00439811.exe
1564	iexplore.exe
1564	iexplore.exe
880	iexplore.exe
880	iexplore.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

iexplore.exeiexplore.exe

description pid process

Token: SeDebugPrivilege 2876 iexplore.exe
Token: SeDebugPrivilege 1564 iexplore.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

RFQ#00439811.exeiexplore.exe

pid process

3264 RFQ#00439811.exe
2876 iexplore.exe

description	pid	process
Token: SeDebugPrivilege	2876	iexplore.exe
Token: SeDebugPrivilege	1564	iexplore.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

RFQ#00439811.exeRFQ#00439811.exeiexplore.exe

description	pid	process	target process
PID 2808 wrote to memory of 3264	2808	RFQ#00439811.exe	RFQ#00439811.exe
PID 2808 wrote to memory of 3264	2808	RFQ#00439811.exe	RFQ#00439811.exe
PID 2808 wrote to memory of 3264	2808	RFQ#00439811.exe	RFQ#00439811.exe
PID 2808 wrote to memory of 3264	2808	RFQ#00439811.exe	RFQ#00439811.exe
PID 2808 wrote to memory of 3264	2808	RFQ#00439811.exe	RFQ#00439811.exe
PID 2808 wrote to memory of 3264	2808	RFQ#00439811.exe	RFQ#00439811.exe
PID 2808 wrote to memory of 3264	2808	RFQ#00439811.exe	RFQ#00439811.exe
PID 3264 wrote to memory of 2876	3264	RFQ#00439811.exe	iexplore.exe
PID 3264 wrote to memory of 2876	3264	RFQ#00439811.exe	iexplore.exe
PID 3264 wrote to memory of 2876	3264	RFQ#00439811.exe	iexplore.exe
PID 3264 wrote to memory of 2876	3264	RFQ#00439811.exe	iexplore.exe
PID 3264 wrote to memory of 2876	3264	RFQ#00439811.exe	iexplore.exe
PID 3264 wrote to memory of 2876	3264	RFQ#00439811.exe	iexplore.exe
PID 3264 wrote to memory of 2876	3264	RFQ#00439811.exe	iexplore.exe
PID 3264 wrote to memory of 2876	3264	RFQ#00439811.exe	iexplore.exe
PID 2876 wrote to memory of 1564	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 1564	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 1564	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 1564	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 1564	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 1564	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 1564	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 1564	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 1092	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 1092	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 1092	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 1092	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 1092	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 1092	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 1092	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 1092	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 1092	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 668	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 668	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 668	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 668	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 668	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 668	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 668	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 668	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 668	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 2860	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 2860	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 2860	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 2860	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 2860	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 2860	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 2860	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 2860	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 2860	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 3972	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 3972	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 3972	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 3972	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 3972	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 3972	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 3972	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 3972	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 3972	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 880	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 880	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 880	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 880	2876	iexplore.exe	iexplore.exe
PID 2876 wrote to memory of 880	2876	iexplore.exe	iexplore.exe

System policy modification 1 TTPs 1 IoCs
evasion

Modify Registry
T1112

Processes:

RFQ#00439811.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" RFQ#00439811.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	RFQ#00439811.exe

C:\Users\Admin\AppData\Local\Temp\RFQ#00439811.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ#00439811.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2808

C:\Users\Admin\AppData\Local\Temp\RFQ#00439811.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ#00439811.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:3264

C:\Program Files (x86)\Internet Explorer\iexplore.exe
C:\Users\Admin\AppData\Local\Temp\RFQ#00439811.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:2876

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6\beulpuhyg0.txt"
4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1564

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6\beulpuhyg1.txt"
4⤵
PID:1092

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1092 -s 96
5⤵
- Program crash
PID:368

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6\beulpuhyg1.txt"
4⤵
PID:668

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 668 -s 92
5⤵
- Program crash
PID:1188

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6\beulpuhyg1.txt"
4⤵
- Accesses Microsoft Outlook accounts
PID:2860

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6\beulpuhyg2.txt"
4⤵
PID:3972

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3972 -s 92
5⤵
- Program crash
PID:3600

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6\beulpuhyg2.txt"
4⤵
- Suspicious behavior: EnumeratesProcesses
PID:880

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6\beulpuhyg3.txt"
4⤵
PID:1700

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1700 -s 92
5⤵
- Program crash
PID:4008

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6\beulpuhyg3.txt"
4⤵
PID:1924

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6\beulpuhyg4.txt"
4⤵
PID:2156

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

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Query Registry

4

T1012

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

3

T1082

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6\beulpuhyg2.txt
MD5
f94dc819ca773f1e3cb27abbc9e7fa27

SHA1
9a7700efadc5ea09ab288544ef1e3cd876255086

SHA256
a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92

SHA512
72a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196

Download Submit
C:\Users\Admin\AppData\Roaming\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6\beulpuhyg4.txt
MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
memory/668-133-0x0000000000411654-mapping.dmp

Download
memory/880-136-0x0000000000442F04-mapping.dmp

Download
memory/1092-132-0x0000000000411654-mapping.dmp

Download
memory/1564-131-0x0000000000423BC0-mapping.dmp

Download
memory/1700-138-0x0000000000413750-mapping.dmp

Download
memory/1924-139-0x0000000000413750-mapping.dmp

Download
memory/2156-140-0x000000000040C2A8-mapping.dmp

Download
memory/2808-120-0x0000000005170000-0x0000000005171000-memory.dmp

Filesize
4KB

Download
memory/2808-124-0x0000000007240000-0x0000000007241000-memory.dmp

Filesize
4KB

Download
memory/2808-123-0x0000000007070000-0x00000000070CB000-memory.dmp

Filesize
364KB

Download
memory/2808-122-0x0000000006FD0000-0x0000000006FD1000-memory.dmp

Filesize
4KB

Download
memory/2808-121-0x0000000006C50000-0x0000000006C54000-memory.dmp

Filesize
16KB

Download
memory/2808-115-0x00000000003A0000-0x00000000003A1000-memory.dmp

Filesize
4KB

Download
memory/2808-119-0x0000000004BC0000-0x0000000004C52000-memory.dmp

Filesize
584KB

Download
memory/2808-118-0x0000000004C90000-0x0000000004C91000-memory.dmp

Filesize
4KB

Download
memory/2808-117-0x0000000005190000-0x0000000005191000-memory.dmp

Filesize
4KB

Download
memory/2860-134-0x0000000000411654-mapping.dmp

Download
memory/2876-129-0x0000000000401364-mapping.dmp

Download
memory/3264-130-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/3264-128-0x0000000000BE0000-0x0000000000BEA000-memory.dmp

Filesize
40KB

Download
memory/3264-127-0x0000000000BE0000-0x0000000000BE6000-memory.dmp

Filesize
24KB

Download
memory/3264-126-0x00000000004010B8-mapping.dmp

Download
memory/3264-125-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/3972-135-0x0000000000442F04-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads