xpertrat | 1bc32420315bf439659c6ca7426e068cb1acab9d5320006a40aeff025318893f

Analysis

max time kernel
120s
max time network
127s
platform
windows7_x64
resource
win7v20210410
submitted
21-04-2021 13:53

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General

Target

b6e19d6eff5e92815130648f931b9425.exe
Size

822KB
MD5

b6e19d6eff5e92815130648f931b9425
SHA1

32af8fb009f92eec12ee99fd871c56e5fb497e6c
SHA256

1bc32420315bf439659c6ca7426e068cb1acab9d5320006a40aeff025318893f
SHA512

ad3430addf44ed7ea2295d8bb07018c2789e5f0f0a0bd3c0aacb69f5486f49a04c8003015d06ee9b68f7d8b141615af818cd3d1c17e8a8f8c08c87f225264665

Score

10^/10

xpertrat special x evasion persistence rat trojan upx

Malware Config

Extracted

Family

xpertrat

Version

3.0.10

Botnet

special X

ghytrty.duckdns.org:4145

spapertyy.duckdns.org:4145

Mutex

L3Q7I4T2-J8A6-K6O4-W4G3-T5J7D0W2V5E0

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/368-69-0x0000000000400000-0x0000000000443000-memory.dmp	xpertrat
behavioral1/memory/368-70-0x0000000000401364-mapping.dmp	xpertrat

NirSoft MailPassView 2 IoCs

Password recovery tool for various email clients

Processes:

resource	yara_rule
behavioral1/memory/792-79-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView
behavioral1/memory/792-80-0x0000000000411654-mapping.dmp	MailPassView

NirSoft WebBrowserPassView 2 IoCs

Password recovery tool for various web browsers

Processes:

resource	yara_rule
behavioral1/memory/704-82-0x0000000000400000-0x0000000000459000-memory.dmp	WebBrowserPassView
behavioral1/memory/704-83-0x0000000000442F04-mapping.dmp	WebBrowserPassView

Nirsoft 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/792-79-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral1/memory/792-80-0x0000000000411654-mapping.dmp	Nirsoft
behavioral1/memory/704-82-0x0000000000400000-0x0000000000459000-memory.dmp	Nirsoft
behavioral1/memory/704-83-0x0000000000442F04-mapping.dmp	Nirsoft
behavioral1/memory/1428-89-0x0000000000400000-0x0000000000415000-memory.dmp	Nirsoft
behavioral1/memory/1428-90-0x000000000040C2A8-mapping.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\L3Q7I4T2-J8A6-K6O4-W4G3-T5J7D0W2V5E0 = "C:\\Users\\Admin\\AppData\\Roaming\\L3Q7I4T2-J8A6-K6O4-W4G3-T5J7D0W2V5E0\\L3Q7I4T2-J8A6-K6O4-W4G3-T5J7D0W2V5E0.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/960-76-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral1/memory/608-86-0x0000000000400000-0x0000000000416000-memory.dmp	upx

Windows security modification 2 TTPs 1 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

b6e19d6eff5e92815130648f931b9425.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UACDisableNotify = "0"	b6e19d6eff5e92815130648f931b9425.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-1-5-21-2513283230-931923277-594887482-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\L3Q7I4T2-J8A6-K6O4-W4G3-T5J7D0W2V5E0 = "C:\\Users\\Admin\\AppData\\Roaming\\L3Q7I4T2-J8A6-K6O4-W4G3-T5J7D0W2V5E0\\L3Q7I4T2-J8A6-K6O4-W4G3-T5J7D0W2V5E0.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\L3Q7I4T2-J8A6-K6O4-W4G3-T5J7D0W2V5E0 = "C:\\Users\\Admin\\AppData\\Roaming\\L3Q7I4T2-J8A6-K6O4-W4G3-T5J7D0W2V5E0\\L3Q7I4T2-J8A6-K6O4-W4G3-T5J7D0W2V5E0.exe"	iexplore.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

b6e19d6eff5e92815130648f931b9425.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	b6e19d6eff5e92815130648f931b9425.exe

Suspicious use of SetThreadContext 7 IoCs

Processes:

b6e19d6eff5e92815130648f931b9425.exeb6e19d6eff5e92815130648f931b9425.exeiexplore.exe

description	pid	process	target process
PID 1688 set thread context of 1596	1688	b6e19d6eff5e92815130648f931b9425.exe	b6e19d6eff5e92815130648f931b9425.exe
PID 1596 set thread context of 368	1596	b6e19d6eff5e92815130648f931b9425.exe	iexplore.exe
PID 368 set thread context of 960	368	iexplore.exe	iexplore.exe
PID 368 set thread context of 792	368	iexplore.exe	iexplore.exe
PID 368 set thread context of 704	368	iexplore.exe	iexplore.exe
PID 368 set thread context of 608	368	iexplore.exe	iexplore.exe
PID 368 set thread context of 1428	368	iexplore.exe	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

b6e19d6eff5e92815130648f931b9425.exe

pid	process
1596	b6e19d6eff5e92815130648f931b9425.exe
1596	b6e19d6eff5e92815130648f931b9425.exe
1596	b6e19d6eff5e92815130648f931b9425.exe
1596	b6e19d6eff5e92815130648f931b9425.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

iexplore.exeiexplore.exe

description pid process

Token: SeDebugPrivilege 368 iexplore.exe
Token: SeDebugPrivilege 960 iexplore.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

b6e19d6eff5e92815130648f931b9425.exeiexplore.exe

pid process

1596 b6e19d6eff5e92815130648f931b9425.exe
368 iexplore.exe

description	pid	process
Token: SeDebugPrivilege	368	iexplore.exe
Token: SeDebugPrivilege	960	iexplore.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

b6e19d6eff5e92815130648f931b9425.exeb6e19d6eff5e92815130648f931b9425.exeiexplore.exe

description	pid	process	target process
PID 1688 wrote to memory of 1596	1688	b6e19d6eff5e92815130648f931b9425.exe	b6e19d6eff5e92815130648f931b9425.exe
PID 1688 wrote to memory of 1596	1688	b6e19d6eff5e92815130648f931b9425.exe	b6e19d6eff5e92815130648f931b9425.exe
PID 1688 wrote to memory of 1596	1688	b6e19d6eff5e92815130648f931b9425.exe	b6e19d6eff5e92815130648f931b9425.exe
PID 1688 wrote to memory of 1596	1688	b6e19d6eff5e92815130648f931b9425.exe	b6e19d6eff5e92815130648f931b9425.exe
PID 1688 wrote to memory of 1596	1688	b6e19d6eff5e92815130648f931b9425.exe	b6e19d6eff5e92815130648f931b9425.exe
PID 1688 wrote to memory of 1596	1688	b6e19d6eff5e92815130648f931b9425.exe	b6e19d6eff5e92815130648f931b9425.exe
PID 1688 wrote to memory of 1596	1688	b6e19d6eff5e92815130648f931b9425.exe	b6e19d6eff5e92815130648f931b9425.exe
PID 1688 wrote to memory of 1596	1688	b6e19d6eff5e92815130648f931b9425.exe	b6e19d6eff5e92815130648f931b9425.exe
PID 1596 wrote to memory of 368	1596	b6e19d6eff5e92815130648f931b9425.exe	iexplore.exe
PID 1596 wrote to memory of 368	1596	b6e19d6eff5e92815130648f931b9425.exe	iexplore.exe
PID 1596 wrote to memory of 368	1596	b6e19d6eff5e92815130648f931b9425.exe	iexplore.exe
PID 1596 wrote to memory of 368	1596	b6e19d6eff5e92815130648f931b9425.exe	iexplore.exe
PID 1596 wrote to memory of 368	1596	b6e19d6eff5e92815130648f931b9425.exe	iexplore.exe
PID 1596 wrote to memory of 368	1596	b6e19d6eff5e92815130648f931b9425.exe	iexplore.exe
PID 1596 wrote to memory of 368	1596	b6e19d6eff5e92815130648f931b9425.exe	iexplore.exe
PID 1596 wrote to memory of 368	1596	b6e19d6eff5e92815130648f931b9425.exe	iexplore.exe
PID 1596 wrote to memory of 368	1596	b6e19d6eff5e92815130648f931b9425.exe	iexplore.exe
PID 368 wrote to memory of 960	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 960	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 960	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 960	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 960	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 960	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 960	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 960	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 960	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 792	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 792	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 792	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 792	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 792	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 792	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 792	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 792	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 792	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 792	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 704	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 704	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 704	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 704	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 704	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 704	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 704	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 704	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 704	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 704	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 608	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 608	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 608	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 608	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 608	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 608	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 608	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 608	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 608	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 1428	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 1428	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 1428	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 1428	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 1428	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 1428	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 1428	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 1428	368	iexplore.exe	iexplore.exe
PID 368 wrote to memory of 1428	368	iexplore.exe	iexplore.exe

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

Processes:

b6e19d6eff5e92815130648f931b9425.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	b6e19d6eff5e92815130648f931b9425.exe

C:\Users\Admin\AppData\Local\Temp\b6e19d6eff5e92815130648f931b9425.exe
"C:\Users\Admin\AppData\Local\Temp\b6e19d6eff5e92815130648f931b9425.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1688

C:\Users\Admin\AppData\Local\Temp\b6e19d6eff5e92815130648f931b9425.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:1596

C:\Program Files (x86)\Internet Explorer\iexplore.exe
C:\Users\Admin\AppData\Local\Temp\b6e19d6eff5e92815130648f931b9425.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:368

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\L3Q7I4T2-J8A6-K6O4-W4G3-T5J7D0W2V5E0\dvfcakwdz0.txt"
4⤵
- Suspicious use of AdjustPrivilegeToken
PID:960

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\L3Q7I4T2-J8A6-K6O4-W4G3-T5J7D0W2V5E0\dvfcakwdz1.txt"
4⤵
PID:792

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\L3Q7I4T2-J8A6-K6O4-W4G3-T5J7D0W2V5E0\dvfcakwdz2.txt"
4⤵
PID:704

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\L3Q7I4T2-J8A6-K6O4-W4G3-T5J7D0W2V5E0\dvfcakwdz3.txt"
4⤵
PID:608

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\L3Q7I4T2-J8A6-K6O4-W4G3-T5J7D0W2V5E0\dvfcakwdz4.txt"
4⤵
PID:1428

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\L3Q7I4T2-J8A6-K6O4-W4G3-T5J7D0W2V5E0\dvfcakwdz2.txt
MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
C:\Users\Admin\AppData\Roaming\L3Q7I4T2-J8A6-K6O4-W4G3-T5J7D0W2V5E0\dvfcakwdz4.txt
MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
memory/368-70-0x0000000000401364-mapping.dmp

Download
memory/368-75-0x0000000075011000-0x0000000075013000-memory.dmp

Filesize
8KB

Download
memory/368-71-0x0000000000450000-0x00000000005A3000-memory.dmp

Filesize
1.3MB

Download
memory/368-69-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/608-87-0x0000000000413750-mapping.dmp

Download
memory/608-86-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/704-82-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/704-83-0x0000000000442F04-mapping.dmp

Download
memory/792-79-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/792-80-0x0000000000411654-mapping.dmp

Download
memory/960-77-0x0000000000423BC0-mapping.dmp

Download
memory/960-76-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1428-89-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1428-90-0x000000000040C2A8-mapping.dmp

Download
memory/1596-65-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1596-66-0x00000000004010B8-mapping.dmp

Download
memory/1688-59-0x0000000001010000-0x0000000001011000-memory.dmp

Filesize
4KB

Download
memory/1688-62-0x00000000004C0000-0x00000000004CE000-memory.dmp

Filesize
56KB

Download
memory/1688-63-0x0000000007F00000-0x0000000007FC4000-memory.dmp

Filesize
784KB

Download
memory/1688-64-0x00000000050C0000-0x0000000005137000-memory.dmp

Filesize
476KB

Download
memory/1688-61-0x0000000004DA0000-0x0000000004DA1000-memory.dmp

Filesize
4KB

Download