xpertrat | c675725093fc52813ef776f4c04acb080bcc017691987fd2c8db555911f6ab13

Analysis

max time kernel
55s
max time network
134s
platform
windows10_x64
resource
win10v200722
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
behavioral2/memory/3608-13-0x0000000000400000-0x0000000000443000-memory.dmp	xpertrat
behavioral2/memory/3608-14-0x0000000000401364-mapping.dmp	xpertrat
behavioral2/memory/3608-15-0x0000000000400000-0x0000000000443000-memory.dmp	xpertrat

NirSoft MailPassView 3 IoCs

Password recovery tool for various email clients

Processes:

resource	yara_rule
behavioral2/memory/2444-23-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView
behavioral2/memory/2444-24-0x0000000000411654-mapping.dmp	MailPassView
behavioral2/memory/2444-25-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

Processes:

resource	yara_rule
behavioral2/memory/204-26-0x0000000000400000-0x0000000000459000-memory.dmp	WebBrowserPassView
behavioral2/memory/204-27-0x0000000000442F04-mapping.dmp	WebBrowserPassView
behavioral2/memory/204-28-0x0000000000400000-0x0000000000459000-memory.dmp	WebBrowserPassView

Nirsoft 11 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2624-22-0x0000000000400000-0x0000000000426000-memory.dmp	Nirsoft
behavioral2/memory/2444-23-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral2/memory/2444-24-0x0000000000411654-mapping.dmp	Nirsoft
behavioral2/memory/2444-25-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral2/memory/204-26-0x0000000000400000-0x0000000000459000-memory.dmp	Nirsoft
behavioral2/memory/204-27-0x0000000000442F04-mapping.dmp	Nirsoft
behavioral2/memory/204-28-0x0000000000400000-0x0000000000459000-memory.dmp	Nirsoft
behavioral2/memory/2136-33-0x0000000000400000-0x0000000000416000-memory.dmp	Nirsoft
behavioral2/memory/3020-34-0x0000000000400000-0x0000000000415000-memory.dmp	Nirsoft
behavioral2/memory/3020-35-0x000000000040C2A8-mapping.dmp	Nirsoft
behavioral2/memory/3020-36-0x0000000000400000-0x0000000000415000-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
behavioral2/memory/2624-19-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral2/memory/2624-21-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral2/memory/2624-22-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral2/memory/2136-30-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral2/memory/2136-32-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral2/memory/2136-33-0x0000000000400000-0x0000000000416000-memory.dmp	upx

Deletes itself 1 IoCs

Processes:

notepad.exe

pid process

3040 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
3040	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
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
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\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

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 412 set thread context of 2056	412	C202000000164556_pdf.exe	C202000000164556_pdf.exe
PID 2056 set thread context of 3608	2056	C202000000164556_pdf.exe	iexplore.exe
PID 3608 set thread context of 2624	3608	iexplore.exe	iexplore.exe
PID 3608 set thread context of 2444	3608	iexplore.exe	iexplore.exe
PID 3608 set thread context of 204	3608	iexplore.exe	iexplore.exe
PID 3608 set thread context of 2136	3608	iexplore.exe	iexplore.exe
PID 3608 set thread context of 3020	3608	iexplore.exe	iexplore.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

C202000000164556_pdf.exeC202000000164556_pdf.exeiexplore.exeiexplore.exe

pid	process
412	C202000000164556_pdf.exe
412	C202000000164556_pdf.exe
412	C202000000164556_pdf.exe
412	C202000000164556_pdf.exe
2056	C202000000164556_pdf.exe
2056	C202000000164556_pdf.exe
2056	C202000000164556_pdf.exe
2056	C202000000164556_pdf.exe
2624	iexplore.exe
2624	iexplore.exe
204	iexplore.exe
204	iexplore.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

C202000000164556_pdf.exeiexplore.exeiexplore.exe

description	pid	process
Token: SeDebugPrivilege	412	C202000000164556_pdf.exe
Token: SeDebugPrivilege	3608	iexplore.exe
Token: SeDebugPrivilege	2624	iexplore.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

C202000000164556_pdf.exeiexplore.exe

pid process

2056 C202000000164556_pdf.exe
3608 iexplore.exe

pid	process
2056	C202000000164556_pdf.exe
3608	iexplore.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

C202000000164556_pdf.exeC202000000164556_pdf.exeiexplore.exe

description	pid	process	target process
PID 412 wrote to memory of 3076	412	C202000000164556_pdf.exe	C202000000164556_pdf.exe
PID 412 wrote to memory of 3076	412	C202000000164556_pdf.exe	C202000000164556_pdf.exe
PID 412 wrote to memory of 3076	412	C202000000164556_pdf.exe	C202000000164556_pdf.exe
PID 412 wrote to memory of 1632	412	C202000000164556_pdf.exe	C202000000164556_pdf.exe
PID 412 wrote to memory of 1632	412	C202000000164556_pdf.exe	C202000000164556_pdf.exe
PID 412 wrote to memory of 1632	412	C202000000164556_pdf.exe	C202000000164556_pdf.exe
PID 412 wrote to memory of 2056	412	C202000000164556_pdf.exe	C202000000164556_pdf.exe
PID 412 wrote to memory of 2056	412	C202000000164556_pdf.exe	C202000000164556_pdf.exe
PID 412 wrote to memory of 2056	412	C202000000164556_pdf.exe	C202000000164556_pdf.exe
PID 412 wrote to memory of 2056	412	C202000000164556_pdf.exe	C202000000164556_pdf.exe
PID 412 wrote to memory of 2056	412	C202000000164556_pdf.exe	C202000000164556_pdf.exe
PID 412 wrote to memory of 2056	412	C202000000164556_pdf.exe	C202000000164556_pdf.exe
PID 412 wrote to memory of 2056	412	C202000000164556_pdf.exe	C202000000164556_pdf.exe
PID 2056 wrote to memory of 3608	2056	C202000000164556_pdf.exe	iexplore.exe
PID 2056 wrote to memory of 3608	2056	C202000000164556_pdf.exe	iexplore.exe
PID 2056 wrote to memory of 3608	2056	C202000000164556_pdf.exe	iexplore.exe
PID 2056 wrote to memory of 3608	2056	C202000000164556_pdf.exe	iexplore.exe
PID 2056 wrote to memory of 3608	2056	C202000000164556_pdf.exe	iexplore.exe
PID 2056 wrote to memory of 3608	2056	C202000000164556_pdf.exe	iexplore.exe
PID 2056 wrote to memory of 3608	2056	C202000000164556_pdf.exe	iexplore.exe
PID 2056 wrote to memory of 3608	2056	C202000000164556_pdf.exe	iexplore.exe
PID 3608 wrote to memory of 3040	3608	iexplore.exe	notepad.exe
PID 3608 wrote to memory of 3040	3608	iexplore.exe	notepad.exe
PID 3608 wrote to memory of 3040	3608	iexplore.exe	notepad.exe
PID 3608 wrote to memory of 3040	3608	iexplore.exe	notepad.exe
PID 3608 wrote to memory of 2624	3608	iexplore.exe	iexplore.exe
PID 3608 wrote to memory of 2624	3608	iexplore.exe	iexplore.exe
PID 3608 wrote to memory of 2624	3608	iexplore.exe	iexplore.exe
PID 3608 wrote to memory of 2624	3608	iexplore.exe	iexplore.exe
PID 3608 wrote to memory of 2624	3608	iexplore.exe	iexplore.exe
PID 3608 wrote to memory of 2624	3608	iexplore.exe	iexplore.exe
PID 3608 wrote to memory of 2624	3608	iexplore.exe	iexplore.exe
PID 3608 wrote to memory of 2624	3608	iexplore.exe	iexplore.exe
PID 3608 wrote to memory of 2444	3608	iexplore.exe	iexplore.exe
PID 3608 wrote to memory of 2444	3608	iexplore.exe	iexplore.exe
PID 3608 wrote to memory of 2444	3608	iexplore.exe	iexplore.exe
PID 3608 wrote to memory of 2444	3608	iexplore.exe	iexplore.exe
PID 3608 wrote to memory of 2444	3608	iexplore.exe	iexplore.exe
PID 3608 wrote to memory of 2444	3608	iexplore.exe	iexplore.exe
PID 3608 wrote to memory of 2444	3608	iexplore.exe	iexplore.exe
PID 3608 wrote to memory of 2444	3608	iexplore.exe	iexplore.exe
PID 3608 wrote to memory of 2444	3608	iexplore.exe	iexplore.exe
PID 3608 wrote to memory of 204	3608	iexplore.exe	iexplore.exe
PID 3608 wrote to memory of 204	3608	iexplore.exe	iexplore.exe
PID 3608 wrote to memory of 204	3608	iexplore.exe	iexplore.exe
PID 3608 wrote to memory of 204	3608	iexplore.exe	iexplore.exe
PID 3608 wrote to memory of 204	3608	iexplore.exe	iexplore.exe
PID 3608 wrote to memory of 204	3608	iexplore.exe	iexplore.exe
PID 3608 wrote to memory of 204	3608	iexplore.exe	iexplore.exe
PID 3608 wrote to memory of 204	3608	iexplore.exe	iexplore.exe
PID 3608 wrote to memory of 204	3608	iexplore.exe	iexplore.exe
PID 3608 wrote to memory of 2136	3608	iexplore.exe	iexplore.exe
PID 3608 wrote to memory of 2136	3608	iexplore.exe	iexplore.exe
PID 3608 wrote to memory of 2136	3608	iexplore.exe	iexplore.exe
PID 3608 wrote to memory of 2136	3608	iexplore.exe	iexplore.exe
PID 3608 wrote to memory of 2136	3608	iexplore.exe	iexplore.exe
PID 3608 wrote to memory of 2136	3608	iexplore.exe	iexplore.exe
PID 3608 wrote to memory of 2136	3608	iexplore.exe	iexplore.exe
PID 3608 wrote to memory of 2136	3608	iexplore.exe	iexplore.exe
PID 3608 wrote to memory of 3020	3608	iexplore.exe	iexplore.exe
PID 3608 wrote to memory of 3020	3608	iexplore.exe	iexplore.exe
PID 3608 wrote to memory of 3020	3608	iexplore.exe	iexplore.exe
PID 3608 wrote to memory of 3020	3608	iexplore.exe	iexplore.exe
PID 3608 wrote to memory of 3020	3608	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 behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:412

C:\Users\Admin\AppData\Local\Temp\C202000000164556_pdf.exe
"{path}"
2⤵
PID:3076

C:\Users\Admin\AppData\Local\Temp\C202000000164556_pdf.exe
"{path}"
2⤵
PID:1632

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:2056

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:3608

C:\Windows\SysWOW64\notepad.exe
notepad.exe
4⤵
- Deletes itself
PID:3040

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\Y1E5W2H0-W6U4-R5S1-S8J1-I3T1C6W3P336\usvblbhsq0.txt"
4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2624

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\Y1E5W2H0-W6U4-R5S1-S8J1-I3T1C6W3P336\usvblbhsq1.txt"
4⤵
PID:2444

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\Y1E5W2H0-W6U4-R5S1-S8J1-I3T1C6W3P336\usvblbhsq2.txt"
4⤵
- Suspicious behavior: EnumeratesProcesses
PID:204

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\Y1E5W2H0-W6U4-R5S1-S8J1-I3T1C6W3P336\usvblbhsq3.txt"
4⤵
PID:2136

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\Y1E5W2H0-W6U4-R5S1-S8J1-I3T1C6W3P336\usvblbhsq4.txt"
4⤵
PID:3020

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\usvblbhsq2.txt
MD5
f94dc819ca773f1e3cb27abbc9e7fa27

SHA1
9a7700efadc5ea09ab288544ef1e3cd876255086

SHA256
a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92

SHA512
72a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196

Download Submit
C:\Users\Admin\AppData\Roaming\Y1E5W2H0-W6U4-R5S1-S8J1-I3T1C6W3P336\usvblbhsq4.txt
MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
memory/204-26-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/204-28-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/204-27-0x0000000000442F04-mapping.dmp

Download
memory/412-1-0x0000000000610000-0x0000000000611000-memory.dmp

Filesize
4KB

Download
memory/412-3-0x0000000005530000-0x0000000005531000-memory.dmp

Filesize
4KB

Download
memory/412-4-0x0000000005030000-0x0000000005031000-memory.dmp

Filesize
4KB

Download
memory/412-5-0x00000000050D0000-0x00000000050D1000-memory.dmp

Filesize
4KB

Download
memory/412-6-0x0000000004F30000-0x0000000004F46000-memory.dmp

Filesize
88KB

Download
memory/412-7-0x0000000005B30000-0x0000000005B9B000-memory.dmp

Filesize
428KB

Download
memory/412-0-0x0000000073440000-0x0000000073B2E000-memory.dmp

Filesize
6.9MB

Download
memory/2056-9-0x00000000004010B8-mapping.dmp

Download
memory/2056-10-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/2056-8-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/2136-33-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2136-32-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2136-30-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2136-31-0x0000000000413750-mapping.dmp

Download
memory/2444-23-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2444-25-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2444-24-0x0000000000411654-mapping.dmp

Download
memory/2624-22-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2624-19-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2624-20-0x0000000000423BC0-mapping.dmp

Download
memory/2624-21-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/3020-34-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3020-35-0x000000000040C2A8-mapping.dmp

Download
memory/3020-36-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3040-18-0x0000000000000000-mapping.dmp

Download
memory/3608-13-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/3608-14-0x0000000000401364-mapping.dmp

Download
memory/3608-15-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download