xpertrat | c675725093fc52813ef776f4c04acb080bcc017691987fd2c8db555911f6ab13

Analysis

max time kernel
66s
max time network
130s
platform
windows7_x64
resource
win7v200722
submitted
23-10-2020 11:39

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General

Target

C202000000164556_pdf.exe
Size

1.1MB
MD5

672849391b8b92a05c59640f1765b3d0
SHA1

4b46fb7e3b25d33b40f5894b0894f62f61a288b7
SHA256

c675725093fc52813ef776f4c04acb080bcc017691987fd2c8db555911f6ab13
SHA512

9fec40a262ba8f025c3c5560598f104ccea5f7a9f5b96074a99efe2f8f6ffdcc001bcd22cd4eb2f6ca776069b57cca1220efc6bf9676cadbf5fa9ec7e31d3bee

Score

10^/10

xpertrat xbox evasion persistence rat trojan upx

Malware Config

Extracted

Family

xpertrat

Version

3.0.10

Botnet

xbox

79.134.225.97:4726

79.134.225.97:7892

Mutex

Y1E5W2H0-W6U4-R5S1-S8J1-I3T1C6W3P336

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/1548-10-0x0000000000400000-0x0000000000443000-memory.dmp	xpertrat
behavioral1/memory/1548-11-0x0000000000401364-mapping.dmp	xpertrat
behavioral1/memory/1548-12-0x0000000000400000-0x0000000000443000-memory.dmp	xpertrat

NirSoft MailPassView 3 IoCs

Password recovery tool for various email clients

Processes:

resource	yara_rule
behavioral1/memory/1980-23-0x0000000000411654-mapping.dmp	MailPassView
behavioral1/memory/1980-22-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView
behavioral1/memory/1980-24-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

Processes:

resource	yara_rule
behavioral1/memory/1240-25-0x0000000000400000-0x0000000000459000-memory.dmp	WebBrowserPassView
behavioral1/memory/1240-26-0x0000000000442F04-mapping.dmp	WebBrowserPassView
behavioral1/memory/1240-27-0x0000000000400000-0x0000000000459000-memory.dmp	WebBrowserPassView

Nirsoft 11 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2004-21-0x0000000000400000-0x0000000000426000-memory.dmp	Nirsoft
behavioral1/memory/1980-23-0x0000000000411654-mapping.dmp	Nirsoft
behavioral1/memory/1980-22-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral1/memory/1980-24-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral1/memory/1240-25-0x0000000000400000-0x0000000000459000-memory.dmp	Nirsoft
behavioral1/memory/1240-26-0x0000000000442F04-mapping.dmp	Nirsoft
behavioral1/memory/1240-27-0x0000000000400000-0x0000000000459000-memory.dmp	Nirsoft
behavioral1/memory/428-32-0x0000000000400000-0x0000000000416000-memory.dmp	Nirsoft
behavioral1/memory/2016-33-0x0000000000400000-0x0000000000415000-memory.dmp	Nirsoft
behavioral1/memory/2016-34-0x000000000040C2A8-mapping.dmp	Nirsoft
behavioral1/memory/2016-35-0x0000000000400000-0x0000000000415000-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\Y1E5W2H0-W6U4-R5S1-S8J1-I3T1C6W3P336 = "C:\\Users\\Admin\\AppData\\Roaming\\Y1E5W2H0-W6U4-R5S1-S8J1-I3T1C6W3P336\\Y1E5W2H0-W6U4-R5S1-S8J1-I3T1C6W3P336.exe"	iexplore.exe

UPX packed file 6 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2004-16-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral1/memory/2004-20-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral1/memory/2004-21-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral1/memory/428-29-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral1/memory/428-31-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral1/memory/428-32-0x0000000000400000-0x0000000000416000-memory.dmp	upx

Deletes itself 1 IoCs

Processes:

notepad.exe

pid process

1936 notepad.exe
Windows security modification 2 TTPs 1 IoCs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112

Processes:

C202000000164556_pdf.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UACDisableNotify = "0" C202000000164556_pdf.exe

pid	process
1936	notepad.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UACDisableNotify = "0"	C202000000164556_pdf.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-1-5-21-2090973689-680783404-4292415065-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2090973689-680783404-4292415065-1000\Software\Microsoft\Windows\CurrentVersion\Run\Y1E5W2H0-W6U4-R5S1-S8J1-I3T1C6W3P336 = "C:\\Users\\Admin\\AppData\\Roaming\\Y1E5W2H0-W6U4-R5S1-S8J1-I3T1C6W3P336\\Y1E5W2H0-W6U4-R5S1-S8J1-I3T1C6W3P336.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\Y1E5W2H0-W6U4-R5S1-S8J1-I3T1C6W3P336 = "C:\\Users\\Admin\\AppData\\Roaming\\Y1E5W2H0-W6U4-R5S1-S8J1-I3T1C6W3P336\\Y1E5W2H0-W6U4-R5S1-S8J1-I3T1C6W3P336.exe"	iexplore.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

C202000000164556_pdf.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	C202000000164556_pdf.exe

Suspicious use of SetThreadContext 7 IoCs

Processes:

C202000000164556_pdf.exeC202000000164556_pdf.exeiexplore.exe

description	pid	process	target process
PID 1436 set thread context of 1580	1436	C202000000164556_pdf.exe	C202000000164556_pdf.exe
PID 1580 set thread context of 1548	1580	C202000000164556_pdf.exe	iexplore.exe
PID 1548 set thread context of 2004	1548	iexplore.exe	iexplore.exe
PID 1548 set thread context of 1980	1548	iexplore.exe	iexplore.exe
PID 1548 set thread context of 1240	1548	iexplore.exe	iexplore.exe
PID 1548 set thread context of 428	1548	iexplore.exe	iexplore.exe
PID 1548 set thread context of 2016	1548	iexplore.exe	iexplore.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

C202000000164556_pdf.exe

pid process

1580 C202000000164556_pdf.exe
1580 C202000000164556_pdf.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

iexplore.exeiexplore.exe

description pid process

Token: SeDebugPrivilege 1548 iexplore.exe
Token: SeDebugPrivilege 2004 iexplore.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

C202000000164556_pdf.exeiexplore.exe

pid process

1580 C202000000164556_pdf.exe
1548 iexplore.exe

pid	process
1580	C202000000164556_pdf.exe
1580	C202000000164556_pdf.exe

description	pid	process
Token: SeDebugPrivilege	1548	iexplore.exe
Token: SeDebugPrivilege	2004	iexplore.exe

pid	process
1580	C202000000164556_pdf.exe
1548	iexplore.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

C202000000164556_pdf.exeC202000000164556_pdf.exeiexplore.exe

description	pid	process	target process
PID 1436 wrote to memory of 1580	1436	C202000000164556_pdf.exe	C202000000164556_pdf.exe
PID 1436 wrote to memory of 1580	1436	C202000000164556_pdf.exe	C202000000164556_pdf.exe
PID 1436 wrote to memory of 1580	1436	C202000000164556_pdf.exe	C202000000164556_pdf.exe
PID 1436 wrote to memory of 1580	1436	C202000000164556_pdf.exe	C202000000164556_pdf.exe
PID 1436 wrote to memory of 1580	1436	C202000000164556_pdf.exe	C202000000164556_pdf.exe
PID 1436 wrote to memory of 1580	1436	C202000000164556_pdf.exe	C202000000164556_pdf.exe
PID 1436 wrote to memory of 1580	1436	C202000000164556_pdf.exe	C202000000164556_pdf.exe
PID 1436 wrote to memory of 1580	1436	C202000000164556_pdf.exe	C202000000164556_pdf.exe
PID 1580 wrote to memory of 1548	1580	C202000000164556_pdf.exe	iexplore.exe
PID 1580 wrote to memory of 1548	1580	C202000000164556_pdf.exe	iexplore.exe
PID 1580 wrote to memory of 1548	1580	C202000000164556_pdf.exe	iexplore.exe
PID 1580 wrote to memory of 1548	1580	C202000000164556_pdf.exe	iexplore.exe
PID 1580 wrote to memory of 1548	1580	C202000000164556_pdf.exe	iexplore.exe
PID 1580 wrote to memory of 1548	1580	C202000000164556_pdf.exe	iexplore.exe
PID 1580 wrote to memory of 1548	1580	C202000000164556_pdf.exe	iexplore.exe
PID 1580 wrote to memory of 1548	1580	C202000000164556_pdf.exe	iexplore.exe
PID 1580 wrote to memory of 1548	1580	C202000000164556_pdf.exe	iexplore.exe
PID 1548 wrote to memory of 1936	1548	iexplore.exe	notepad.exe
PID 1548 wrote to memory of 1936	1548	iexplore.exe	notepad.exe
PID 1548 wrote to memory of 1936	1548	iexplore.exe	notepad.exe
PID 1548 wrote to memory of 1936	1548	iexplore.exe	notepad.exe
PID 1548 wrote to memory of 1936	1548	iexplore.exe	notepad.exe
PID 1548 wrote to memory of 2004	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 2004	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 2004	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 2004	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 2004	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 2004	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 2004	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 2004	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 2004	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 1980	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 1980	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 1980	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 1980	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 1980	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 1980	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 1980	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 1980	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 1980	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 1980	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 1240	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 1240	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 1240	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 1240	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 1240	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 1240	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 1240	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 1240	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 1240	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 1240	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 428	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 428	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 428	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 428	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 428	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 428	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 428	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 428	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 428	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 2016	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 2016	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 2016	1548	iexplore.exe	iexplore.exe
PID 1548 wrote to memory of 2016	1548	iexplore.exe	iexplore.exe

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

Processes:

C202000000164556_pdf.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	C202000000164556_pdf.exe

C:\Users\Admin\AppData\Local\Temp\C202000000164556_pdf.exe
"C:\Users\Admin\AppData\Local\Temp\C202000000164556_pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1436

C:\Users\Admin\AppData\Local\Temp\C202000000164556_pdf.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:1580

C:\Program Files (x86)\Internet Explorer\iexplore.exe
C:\Users\Admin\AppData\Local\Temp\C202000000164556_pdf.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:1548

C:\Windows\SysWOW64\notepad.exe
notepad.exe
4⤵
- Deletes itself
PID:1936

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\Y1E5W2H0-W6U4-R5S1-S8J1-I3T1C6W3P336\mmwyubtnk0.txt"
4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2004

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\Y1E5W2H0-W6U4-R5S1-S8J1-I3T1C6W3P336\mmwyubtnk1.txt"
4⤵
PID:1980

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\Y1E5W2H0-W6U4-R5S1-S8J1-I3T1C6W3P336\mmwyubtnk2.txt"
4⤵
PID:1240

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\Y1E5W2H0-W6U4-R5S1-S8J1-I3T1C6W3P336\mmwyubtnk3.txt"
4⤵
PID:428

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\Y1E5W2H0-W6U4-R5S1-S8J1-I3T1C6W3P336\mmwyubtnk4.txt"
4⤵
PID:2016

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\Y1E5W2H0-W6U4-R5S1-S8J1-I3T1C6W3P336\mmwyubtnk2.txt
MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
C:\Users\Admin\AppData\Roaming\Y1E5W2H0-W6U4-R5S1-S8J1-I3T1C6W3P336\mmwyubtnk4.txt
MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
memory/428-30-0x0000000000413750-mapping.dmp

Download
memory/428-32-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/428-31-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/428-29-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/1240-25-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/1240-27-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/1240-26-0x0000000000442F04-mapping.dmp

Download
memory/1436-4-0x0000000002280000-0x00000000022EB000-memory.dmp

Filesize
428KB

Download
memory/1436-3-0x0000000000420000-0x0000000000436000-memory.dmp

Filesize
88KB

Download
memory/1436-0-0x0000000074820000-0x0000000074F0E000-memory.dmp

Filesize
6.9MB

Download
memory/1436-1-0x00000000000A0000-0x00000000000A1000-memory.dmp

Filesize
4KB

Download
memory/1548-11-0x0000000000401364-mapping.dmp

Download
memory/1548-10-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/1548-12-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/1580-5-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1580-6-0x00000000004010B8-mapping.dmp

Download
memory/1580-19-0x0000000002B40000-0x0000000002B44000-memory.dmp

Filesize
16KB

Download
memory/1580-18-0x0000000000270000-0x0000000000274000-memory.dmp

Filesize
16KB

Download
memory/1936-15-0x0000000000000000-mapping.dmp

Download
memory/1980-24-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1980-22-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1980-23-0x0000000000411654-mapping.dmp

Download
memory/2004-16-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2004-17-0x0000000000423BC0-mapping.dmp

Download
memory/2004-20-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2004-21-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2016-33-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2016-34-0x000000000040C2A8-mapping.dmp

Download
memory/2016-35-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download