xpertrat | 06febadb1cc71ef3987c339b7c862ea4cd32656c372c4f266cd1af68c355a0c0

Analysis

max time kernel
53s
max time network
144s
platform
windows7_x64
resource
win7v20210408
submitted
26-06-2021 07:17

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General

Target

939a42faab70585cf4aed59c73425492.exe
Size

472KB
MD5

939a42faab70585cf4aed59c73425492
SHA1

ccc57ed7de341f637e1ba6e671105ec304bd2c4b
SHA256

06febadb1cc71ef3987c339b7c862ea4cd32656c372c4f266cd1af68c355a0c0
SHA512

04a845f4b4db9f8fb923a10db65a1cac6cce46f52aa46eaa124b7aa710e7d063555e93f93e26dfb9fa3c28425297d080f69025fcbc73801825154cbf659abe00

Score

10^/10

xpertrat special x evasion persistence rat trojan upx

Malware Config

Extracted

Family

xpertrat

Version

3.0.10

Botnet

special X

mertrerfeyy.duckdns.org:8494

gwtruwhgw.duckdns.org:8494

dfgrttuutii.duckdns.org:8494

Mutex

J0B4S3L1-T6W3-H2L6-N2T2-W4T8H1F1E6U4

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/976-70-0x0000000000400000-0x0000000000443000-memory.dmp	xpertrat
behavioral1/memory/976-71-0x0000000000401364-mapping.dmp	xpertrat

NirSoft MailPassView 2 IoCs

Password recovery tool for various email clients

Processes:

resource	yara_rule
behavioral1/memory/800-80-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView
behavioral1/memory/800-81-0x0000000000411654-mapping.dmp	MailPassView

NirSoft WebBrowserPassView 2 IoCs

Password recovery tool for various web browsers

Processes:

resource	yara_rule
behavioral1/memory/1212-83-0x0000000000400000-0x0000000000459000-memory.dmp	WebBrowserPassView
behavioral1/memory/1212-84-0x0000000000442F04-mapping.dmp	WebBrowserPassView

Nirsoft 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/800-80-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral1/memory/800-81-0x0000000000411654-mapping.dmp	Nirsoft
behavioral1/memory/1212-83-0x0000000000400000-0x0000000000459000-memory.dmp	Nirsoft
behavioral1/memory/1212-84-0x0000000000442F04-mapping.dmp	Nirsoft
behavioral1/memory/456-93-0x000000000040C2A8-mapping.dmp	Nirsoft
behavioral1/memory/456-92-0x0000000000400000-0x0000000000415000-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\J0B4S3L1-T6W3-H2L6-N2T2-W4T8H1F1E6U4 = "C:\\Users\\Admin\\AppData\\Roaming\\J0B4S3L1-T6W3-H2L6-N2T2-W4T8H1F1E6U4\\J0B4S3L1-T6W3-H2L6-N2T2-W4T8H1F1E6U4.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/792-77-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral1/memory/1672-89-0x0000000000400000-0x0000000000416000-memory.dmp	upx

Windows security modification 2 TTPs 1 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

939a42faab70585cf4aed59c73425492.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UACDisableNotify = "0"	939a42faab70585cf4aed59c73425492.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\J0B4S3L1-T6W3-H2L6-N2T2-W4T8H1F1E6U4 = "C:\\Users\\Admin\\AppData\\Roaming\\J0B4S3L1-T6W3-H2L6-N2T2-W4T8H1F1E6U4\\J0B4S3L1-T6W3-H2L6-N2T2-W4T8H1F1E6U4.exe"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\J0B4S3L1-T6W3-H2L6-N2T2-W4T8H1F1E6U4 = "C:\\Users\\Admin\\AppData\\Roaming\\J0B4S3L1-T6W3-H2L6-N2T2-W4T8H1F1E6U4\\J0B4S3L1-T6W3-H2L6-N2T2-W4T8H1F1E6U4.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:

939a42faab70585cf4aed59c73425492.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	939a42faab70585cf4aed59c73425492.exe

Suspicious use of SetThreadContext 8 IoCs

Processes:

939a42faab70585cf4aed59c73425492.exe939a42faab70585cf4aed59c73425492.exeiexplore.exe

description	pid	process	target process
PID 1096 set thread context of 1540	1096	939a42faab70585cf4aed59c73425492.exe	939a42faab70585cf4aed59c73425492.exe
PID 1540 set thread context of 976	1540	939a42faab70585cf4aed59c73425492.exe	iexplore.exe
PID 976 set thread context of 792	976	iexplore.exe	iexplore.exe
PID 976 set thread context of 800	976	iexplore.exe	iexplore.exe
PID 976 set thread context of 1212	976	iexplore.exe	iexplore.exe
PID 976 set thread context of 1800	976	iexplore.exe	iexplore.exe
PID 976 set thread context of 1672	976	iexplore.exe	iexplore.exe
PID 976 set thread context of 456	976	iexplore.exe	iexplore.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

939a42faab70585cf4aed59c73425492.exe939a42faab70585cf4aed59c73425492.exe

pid	process
1096	939a42faab70585cf4aed59c73425492.exe
1096	939a42faab70585cf4aed59c73425492.exe
1540	939a42faab70585cf4aed59c73425492.exe
1540	939a42faab70585cf4aed59c73425492.exe
1540	939a42faab70585cf4aed59c73425492.exe
1540	939a42faab70585cf4aed59c73425492.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

939a42faab70585cf4aed59c73425492.exeiexplore.exeiexplore.exe

description	pid	process
Token: SeDebugPrivilege	1096	939a42faab70585cf4aed59c73425492.exe
Token: SeDebugPrivilege	976	iexplore.exe
Token: SeDebugPrivilege	792	iexplore.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

939a42faab70585cf4aed59c73425492.exeiexplore.exe

pid process

1540 939a42faab70585cf4aed59c73425492.exe
976 iexplore.exe

pid	process
1540	939a42faab70585cf4aed59c73425492.exe
976	iexplore.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

939a42faab70585cf4aed59c73425492.exe939a42faab70585cf4aed59c73425492.exeiexplore.exe

description	pid	process	target process
PID 1096 wrote to memory of 1540	1096	939a42faab70585cf4aed59c73425492.exe	939a42faab70585cf4aed59c73425492.exe
PID 1096 wrote to memory of 1540	1096	939a42faab70585cf4aed59c73425492.exe	939a42faab70585cf4aed59c73425492.exe
PID 1096 wrote to memory of 1540	1096	939a42faab70585cf4aed59c73425492.exe	939a42faab70585cf4aed59c73425492.exe
PID 1096 wrote to memory of 1540	1096	939a42faab70585cf4aed59c73425492.exe	939a42faab70585cf4aed59c73425492.exe
PID 1096 wrote to memory of 1540	1096	939a42faab70585cf4aed59c73425492.exe	939a42faab70585cf4aed59c73425492.exe
PID 1096 wrote to memory of 1540	1096	939a42faab70585cf4aed59c73425492.exe	939a42faab70585cf4aed59c73425492.exe
PID 1096 wrote to memory of 1540	1096	939a42faab70585cf4aed59c73425492.exe	939a42faab70585cf4aed59c73425492.exe
PID 1096 wrote to memory of 1540	1096	939a42faab70585cf4aed59c73425492.exe	939a42faab70585cf4aed59c73425492.exe
PID 1540 wrote to memory of 976	1540	939a42faab70585cf4aed59c73425492.exe	iexplore.exe
PID 1540 wrote to memory of 976	1540	939a42faab70585cf4aed59c73425492.exe	iexplore.exe
PID 1540 wrote to memory of 976	1540	939a42faab70585cf4aed59c73425492.exe	iexplore.exe
PID 1540 wrote to memory of 976	1540	939a42faab70585cf4aed59c73425492.exe	iexplore.exe
PID 1540 wrote to memory of 976	1540	939a42faab70585cf4aed59c73425492.exe	iexplore.exe
PID 1540 wrote to memory of 976	1540	939a42faab70585cf4aed59c73425492.exe	iexplore.exe
PID 1540 wrote to memory of 976	1540	939a42faab70585cf4aed59c73425492.exe	iexplore.exe
PID 1540 wrote to memory of 976	1540	939a42faab70585cf4aed59c73425492.exe	iexplore.exe
PID 1540 wrote to memory of 976	1540	939a42faab70585cf4aed59c73425492.exe	iexplore.exe
PID 976 wrote to memory of 792	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 792	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 792	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 792	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 792	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 792	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 792	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 792	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 792	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 800	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 800	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 800	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 800	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 800	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 800	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 800	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 800	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 800	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 800	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 1212	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 1212	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 1212	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 1212	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 1212	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 1212	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 1212	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 1212	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 1212	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 1212	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 1800	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 1800	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 1800	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 1800	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 1800	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 1800	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 1800	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 1800	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 1800	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 1672	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 1672	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 1672	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 1672	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 1672	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 1672	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 1672	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 1672	976	iexplore.exe	iexplore.exe
PID 976 wrote to memory of 1672	976	iexplore.exe	iexplore.exe

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

Processes:

939a42faab70585cf4aed59c73425492.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	939a42faab70585cf4aed59c73425492.exe

C:\Users\Admin\AppData\Local\Temp\939a42faab70585cf4aed59c73425492.exe
"C:\Users\Admin\AppData\Local\Temp\939a42faab70585cf4aed59c73425492.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1096

C:\Users\Admin\AppData\Local\Temp\939a42faab70585cf4aed59c73425492.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:1540

C:\Program Files (x86)\Internet Explorer\iexplore.exe
C:\Users\Admin\AppData\Local\Temp\939a42faab70585cf4aed59c73425492.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:976

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\J0B4S3L1-T6W3-H2L6-N2T2-W4T8H1F1E6U4\zehkhteav0.txt"
4⤵
- Suspicious use of AdjustPrivilegeToken
PID:792

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\J0B4S3L1-T6W3-H2L6-N2T2-W4T8H1F1E6U4\zehkhteav1.txt"
4⤵
PID:800

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\J0B4S3L1-T6W3-H2L6-N2T2-W4T8H1F1E6U4\zehkhteav2.txt"
4⤵
PID:1212

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\J0B4S3L1-T6W3-H2L6-N2T2-W4T8H1F1E6U4\zehkhteav3.txt"
4⤵
PID:1800

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\J0B4S3L1-T6W3-H2L6-N2T2-W4T8H1F1E6U4\zehkhteav3.txt"
4⤵
PID:1672

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\J0B4S3L1-T6W3-H2L6-N2T2-W4T8H1F1E6U4\zehkhteav4.txt"
4⤵
PID:456

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\J0B4S3L1-T6W3-H2L6-N2T2-W4T8H1F1E6U4\zehkhteav2.txt
MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
C:\Users\Admin\AppData\Roaming\J0B4S3L1-T6W3-H2L6-N2T2-W4T8H1F1E6U4\zehkhteav4.txt
MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
memory/456-93-0x000000000040C2A8-mapping.dmp

Download
memory/456-92-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/792-77-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/792-78-0x0000000000423BC0-mapping.dmp

Download
memory/800-81-0x0000000000411654-mapping.dmp

Download
memory/800-80-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/976-71-0x0000000000401364-mapping.dmp

Download
memory/976-72-0x0000000000660000-0x00000000007B3000-memory.dmp

Filesize
1.3MB

Download
memory/976-76-0x0000000075DA1000-0x0000000075DA3000-memory.dmp

Filesize
8KB

Download
memory/976-70-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/1096-60-0x0000000000D00000-0x0000000000D01000-memory.dmp

Filesize
4KB

Download
memory/1096-65-0x00000000007F0000-0x000000000081E000-memory.dmp

Filesize
184KB

Download
memory/1096-64-0x0000000005F50000-0x0000000005FCD000-memory.dmp

Filesize
500KB

Download
memory/1096-63-0x0000000000250000-0x0000000000252000-memory.dmp

Filesize
8KB

Download
memory/1096-62-0x0000000004AC0000-0x0000000004AC1000-memory.dmp

Filesize
4KB

Download
memory/1212-83-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/1212-84-0x0000000000442F04-mapping.dmp

Download
memory/1540-67-0x00000000004010B8-mapping.dmp

Download
memory/1540-66-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1672-90-0x0000000000413750-mapping.dmp

Download
memory/1672-89-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/1800-88-0x0000000000413750-mapping.dmp

Download