xpertrat | 8963180e8b2e7e51c5abd716e7a562ad010f663c41a38015ad2566231a7da9af

Analysis

max time kernel
17s
max time network
147s
platform
windows10_x64
resource
win10v200722
submitted
15-10-2020 11:57

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General

Target

11_07_2020 PO_INVOICE #3309247.exe
Size

172KB
MD5

ed21990ff9e29addfd9252f1ba0b30d4
SHA1

1f34df7a5cd551dcb5ec24227fbd1a985cbbe4ef
SHA256

8963180e8b2e7e51c5abd716e7a562ad010f663c41a38015ad2566231a7da9af
SHA512

c22f99e61f7b823f412f5c5ad5173096c38aab57833ab2ac61a5a38b173cc97b154a7b90d0d94fa6844eb8c371057429ba22a63533fcf4487e3eb19c0291dc06

Score

10^/10

xpertrat special x evasion persistence rat trojan upx

Malware Config

Extracted

Family

xpertrat

Version

3.0.10

Botnet

special X

sandshoe.myfirewall.org:4000

Mutex

K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5

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
behavioral2/memory/3596-2-0x0000000000400000-0x0000000000443000-memory.dmp	xpertrat
behavioral2/memory/3596-3-0x0000000000401364-mapping.dmp	xpertrat
behavioral2/memory/3596-4-0x0000000000400000-0x0000000000443000-memory.dmp	xpertrat

NirSoft MailPassView 3 IoCs

Password recovery tool for various email clients

Processes:

resource	yara_rule
behavioral2/memory/404-14-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView
behavioral2/memory/404-15-0x0000000000411654-mapping.dmp	MailPassView
behavioral2/memory/404-16-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

Processes:

resource	yara_rule
behavioral2/memory/2288-17-0x0000000000400000-0x0000000000459000-memory.dmp	WebBrowserPassView
behavioral2/memory/2288-18-0x0000000000442F04-mapping.dmp	WebBrowserPassView
behavioral2/memory/2288-19-0x0000000000400000-0x0000000000459000-memory.dmp	WebBrowserPassView

Nirsoft 11 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2884-10-0x0000000000400000-0x0000000000426000-memory.dmp	Nirsoft
behavioral2/memory/404-14-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral2/memory/404-15-0x0000000000411654-mapping.dmp	Nirsoft
behavioral2/memory/404-16-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral2/memory/2288-17-0x0000000000400000-0x0000000000459000-memory.dmp	Nirsoft
behavioral2/memory/2288-18-0x0000000000442F04-mapping.dmp	Nirsoft
behavioral2/memory/2288-19-0x0000000000400000-0x0000000000459000-memory.dmp	Nirsoft
behavioral2/memory/2616-24-0x0000000000400000-0x0000000000416000-memory.dmp	Nirsoft
behavioral2/memory/912-25-0x0000000000400000-0x0000000000415000-memory.dmp	Nirsoft
behavioral2/memory/912-26-0x000000000040C2A8-mapping.dmp	Nirsoft
behavioral2/memory/912-27-0x0000000000400000-0x0000000000415000-memory.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\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5 = "C:\\Users\\Admin\\AppData\\Roaming\\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5\\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5.exe"	iexplore.exe

UPX packed file 6 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/2884-7-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral2/memory/2884-9-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral2/memory/2884-10-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral2/memory/2616-21-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral2/memory/2616-23-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral2/memory/2616-24-0x0000000000400000-0x0000000000416000-memory.dmp	upx

Windows security modification 2 TTPs 1 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

11_07_2020 PO_INVOICE #3309247.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0"	11_07_2020 PO_INVOICE #3309247.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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5 = "C:\\Users\\Admin\\AppData\\Roaming\\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5\\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5.exe"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1400429095-533421673-2598934218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1400429095-533421673-2598934218-1000\Software\Microsoft\Windows\CurrentVersion\Run\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5 = "C:\\Users\\Admin\\AppData\\Roaming\\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5\\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5.exe"	iexplore.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	iexplore.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

11_07_2020 PO_INVOICE #3309247.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	11_07_2020 PO_INVOICE #3309247.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3076 3620 WerFault.exe iexplore.exe

pid	pid_target	process	target process
3076	3620	WerFault.exe	iexplore.exe

Suspicious use of SetThreadContext 7 IoCs

Processes:

11_07_2020 PO_INVOICE #3309247.exeiexplore.exe

description	pid	process	target process
PID 788 set thread context of 3596	788	11_07_2020 PO_INVOICE #3309247.exe	iexplore.exe
PID 3596 set thread context of 2884	3596	iexplore.exe	iexplore.exe
PID 3596 set thread context of 3620	3596	iexplore.exe	iexplore.exe
PID 3596 set thread context of 404	3596	iexplore.exe	iexplore.exe
PID 3596 set thread context of 2288	3596	iexplore.exe	iexplore.exe
PID 3596 set thread context of 2616	3596	iexplore.exe	iexplore.exe
PID 3596 set thread context of 912	3596	iexplore.exe	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

11_07_2020 PO_INVOICE #3309247.exeiexplore.exeiexplore.exe

pid	process
788	11_07_2020 PO_INVOICE #3309247.exe
788	11_07_2020 PO_INVOICE #3309247.exe
788	11_07_2020 PO_INVOICE #3309247.exe
788	11_07_2020 PO_INVOICE #3309247.exe
2884	iexplore.exe
2884	iexplore.exe
2288	iexplore.exe
2288	iexplore.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

iexplore.exeiexplore.exe

description pid process

Token: SeDebugPrivilege 3596 iexplore.exe
Token: SeDebugPrivilege 2884 iexplore.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

11_07_2020 PO_INVOICE #3309247.exeiexplore.exe

pid process

788 11_07_2020 PO_INVOICE #3309247.exe
3596 iexplore.exe

description	pid	process
Token: SeDebugPrivilege	3596	iexplore.exe
Token: SeDebugPrivilege	2884	iexplore.exe

Suspicious use of WriteProcessMemory 60 IoCs

Processes:

11_07_2020 PO_INVOICE #3309247.exeiexplore.exe

description	pid	process	target process
PID 788 wrote to memory of 3596	788	11_07_2020 PO_INVOICE #3309247.exe	iexplore.exe
PID 788 wrote to memory of 3596	788	11_07_2020 PO_INVOICE #3309247.exe	iexplore.exe
PID 788 wrote to memory of 3596	788	11_07_2020 PO_INVOICE #3309247.exe	iexplore.exe
PID 788 wrote to memory of 3596	788	11_07_2020 PO_INVOICE #3309247.exe	iexplore.exe
PID 788 wrote to memory of 3596	788	11_07_2020 PO_INVOICE #3309247.exe	iexplore.exe
PID 788 wrote to memory of 3596	788	11_07_2020 PO_INVOICE #3309247.exe	iexplore.exe
PID 788 wrote to memory of 3596	788	11_07_2020 PO_INVOICE #3309247.exe	iexplore.exe
PID 788 wrote to memory of 3596	788	11_07_2020 PO_INVOICE #3309247.exe	iexplore.exe
PID 3596 wrote to memory of 2884	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 2884	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 2884	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 2884	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 2884	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 2884	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 2884	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 2884	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 3620	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 3620	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 3620	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 3620	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 3620	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 3620	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 3620	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 3620	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 3620	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 404	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 404	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 404	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 404	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 404	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 404	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 404	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 404	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 404	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 2288	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 2288	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 2288	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 2288	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 2288	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 2288	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 2288	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 2288	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 2288	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 2616	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 2616	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 2616	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 2616	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 2616	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 2616	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 2616	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 2616	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 912	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 912	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 912	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 912	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 912	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 912	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 912	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 912	3596	iexplore.exe	iexplore.exe
PID 3596 wrote to memory of 912	3596	iexplore.exe	iexplore.exe

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

Processes:

11_07_2020 PO_INVOICE #3309247.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	11_07_2020 PO_INVOICE #3309247.exe

C:\Users\Admin\AppData\Local\Temp\11_07_2020 PO_INVOICE #3309247.exe
"C:\Users\Admin\AppData\Local\Temp\11_07_2020 PO_INVOICE #3309247.exe"
1⤵
- 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:788

C:\Program Files (x86)\Internet Explorer\iexplore.exe
C:\Users\Admin\AppData\Local\Temp\11_07_2020 PO_INVOICE #3309247.exe
2⤵
- 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:3596

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5\yshitusja0.txt"
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2884

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5\yshitusja1.txt"
3⤵
PID:3620

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3620 -s 92
4⤵
- Program crash
PID:3076

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5\yshitusja1.txt"
3⤵
PID:404

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5\yshitusja2.txt"
3⤵
- Suspicious behavior: EnumeratesProcesses
PID:2288

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5\yshitusja3.txt"
3⤵
PID:2616

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5\yshitusja4.txt"
3⤵
PID:912

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

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Downloads

C:\Users\Admin\AppData\Roaming\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5\yshitusja2.txt
MD5
f94dc819ca773f1e3cb27abbc9e7fa27

SHA1
9a7700efadc5ea09ab288544ef1e3cd876255086

SHA256
a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92

SHA512
72a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196

Download Submit
C:\Users\Admin\AppData\Roaming\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5\yshitusja4.txt
MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
memory/404-16-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/404-14-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/404-15-0x0000000000411654-mapping.dmp

Download
memory/912-27-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/912-26-0x000000000040C2A8-mapping.dmp

Download
memory/912-25-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2288-19-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/2288-18-0x0000000000442F04-mapping.dmp

Download
memory/2288-17-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/2616-23-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2616-21-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2616-22-0x0000000000413750-mapping.dmp

Download
memory/2616-24-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2884-10-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2884-9-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2884-8-0x0000000000423BC0-mapping.dmp

Download
memory/2884-7-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/3076-13-0x0000000004540000-0x0000000004541000-memory.dmp

Filesize
4KB

Download
memory/3596-2-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/3596-4-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/3596-3-0x0000000000401364-mapping.dmp

Download
memory/3620-12-0x0000000000411654-mapping.dmp

Download