xpertrat | cec4e2234a72035a6c3f4144cccf9ec49f34f56a2a212981606f979be1b85adf

General

Target

CPINV_DEC_02_0200202177199554_PY_2009545682211268563_Pdf.exe
Size

3.0MB
MD5

22ad4f47ce82a255765f2e96b61d78c8
SHA1

c260d25d8e49d342d86a3231ff112b9707dc8d8a
SHA256

cec4e2234a72035a6c3f4144cccf9ec49f34f56a2a212981606f979be1b85adf
SHA512

6eca6d26d8809415c410ca2343adc221dca9c996de4f81fd3765dc53605eb4793b0c655deed31b011382352a7b69370df4eeb239fbcdc474e1d4c876db1328a3

Score

10^/10

xpertrat evasion persistence rat trojan

Malware Config

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

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\N3S8L5W2-L0D7-N6R5-I1X3-I7P6I3R8E6E5 = "C:\\Users\\Admin\\AppData\\Roaming\\N3S8L5W2-L0D7-N6R5-I1X3-I7P6I3R8E6E5\\N3S8L5W2-L0D7-N6R5-I1X3-I7P6I3R8E6E5.exe"	iexplore.exe

Downloads MZ/PE file
Windows security modification 2 TTPs 1 IoCs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112

Processes:

RegAsm.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0" RegAsm.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0"	RegAsm.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-1-5-21-941723256-3451054534-3089625102-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows\CurrentVersion\Run\N3S8L5W2-L0D7-N6R5-I1X3-I7P6I3R8E6E5 = "C:\\Users\\Admin\\AppData\\Roaming\\N3S8L5W2-L0D7-N6R5-I1X3-I7P6I3R8E6E5\\N3S8L5W2-L0D7-N6R5-I1X3-I7P6I3R8E6E5.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\N3S8L5W2-L0D7-N6R5-I1X3-I7P6I3R8E6E5 = "C:\\Users\\Admin\\AppData\\Roaming\\N3S8L5W2-L0D7-N6R5-I1X3-I7P6I3R8E6E5\\N3S8L5W2-L0D7-N6R5-I1X3-I7P6I3R8E6E5.exe"	iexplore.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

RegAsm.exe

description ioc process

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

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

Suspicious use of SetThreadContext 2 IoCs

Processes:

CPINV_DEC_02_0200202177199554_PY_2009545682211268563_Pdf.exeRegAsm.exe

description	pid	process	target process
PID 3020 set thread context of 2084	3020	CPINV_DEC_02_0200202177199554_PY_2009545682211268563_Pdf.exe	RegAsm.exe
PID 2084 set thread context of 416	2084	RegAsm.exe	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

RegAsm.exe

pid process

2084 RegAsm.exe
2084 RegAsm.exe
2084 RegAsm.exe
2084 RegAsm.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

CPINV_DEC_02_0200202177199554_PY_2009545682211268563_Pdf.exeiexplore.exe

description pid process

Token: SeDebugPrivilege 3020 CPINV_DEC_02_0200202177199554_PY_2009545682211268563_Pdf.exe
Token: SeDebugPrivilege 416 iexplore.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

RegAsm.exeiexplore.exe

pid process

2084 RegAsm.exe
416 iexplore.exe

pid	process
2084	RegAsm.exe
2084	RegAsm.exe
2084	RegAsm.exe
2084	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	3020	CPINV_DEC_02_0200202177199554_PY_2009545682211268563_Pdf.exe
Token: SeDebugPrivilege	416	iexplore.exe

pid	process
2084	RegAsm.exe
416	iexplore.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

CPINV_DEC_02_0200202177199554_PY_2009545682211268563_Pdf.exeRegAsm.exe

description	pid	process	target process
PID 3020 wrote to memory of 2084	3020	CPINV_DEC_02_0200202177199554_PY_2009545682211268563_Pdf.exe	RegAsm.exe
PID 3020 wrote to memory of 2084	3020	CPINV_DEC_02_0200202177199554_PY_2009545682211268563_Pdf.exe	RegAsm.exe
PID 3020 wrote to memory of 2084	3020	CPINV_DEC_02_0200202177199554_PY_2009545682211268563_Pdf.exe	RegAsm.exe
PID 3020 wrote to memory of 2084	3020	CPINV_DEC_02_0200202177199554_PY_2009545682211268563_Pdf.exe	RegAsm.exe
PID 3020 wrote to memory of 2084	3020	CPINV_DEC_02_0200202177199554_PY_2009545682211268563_Pdf.exe	RegAsm.exe
PID 3020 wrote to memory of 2084	3020	CPINV_DEC_02_0200202177199554_PY_2009545682211268563_Pdf.exe	RegAsm.exe
PID 3020 wrote to memory of 2084	3020	CPINV_DEC_02_0200202177199554_PY_2009545682211268563_Pdf.exe	RegAsm.exe
PID 2084 wrote to memory of 416	2084	RegAsm.exe	iexplore.exe
PID 2084 wrote to memory of 416	2084	RegAsm.exe	iexplore.exe
PID 2084 wrote to memory of 416	2084	RegAsm.exe	iexplore.exe
PID 2084 wrote to memory of 416	2084	RegAsm.exe	iexplore.exe
PID 2084 wrote to memory of 416	2084	RegAsm.exe	iexplore.exe
PID 2084 wrote to memory of 416	2084	RegAsm.exe	iexplore.exe
PID 2084 wrote to memory of 416	2084	RegAsm.exe	iexplore.exe
PID 2084 wrote to memory of 416	2084	RegAsm.exe	iexplore.exe

System policy modification 1 TTPs 1 IoCs
evasion

Modify Registry
T1112

Processes:

RegAsm.exe

description ioc process

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

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

C:\Users\Admin\AppData\Local\Temp\CPINV_DEC_02_0200202177199554_PY_2009545682211268563_Pdf.exe
"C:\Users\Admin\AppData\Local\Temp\CPINV_DEC_02_0200202177199554_PY_2009545682211268563_Pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3020

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
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:2084

C:\Program Files (x86)\Internet Explorer\iexplore.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
3⤵
- Adds policy Run key to start application
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:416

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

2

T1060

Privilege Escalation

Bypass User Account Control

1

T1088

Defense Evasion

Bypass User Account Control

1

T1088

Disabling Security Tools

3

T1089

Modify Registry

6

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/416-127-0x0000000000401364-mapping.dmp

Download
memory/2084-123-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/2084-128-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/2084-126-0x00000000012A0000-0x00000000012AA000-memory.dmp

Filesize
40KB

Download
memory/2084-125-0x00000000012A0000-0x00000000012A6000-memory.dmp

Filesize
24KB

Download
memory/2084-124-0x00000000004010B8-mapping.dmp

Download
memory/3020-119-0x0000000005860000-0x0000000005D5E000-memory.dmp

Filesize
5.0MB

Download
memory/3020-122-0x000000000A510000-0x000000000A6C8000-memory.dmp

Filesize
1.7MB

Download
memory/3020-121-0x0000000005860000-0x0000000005D5E000-memory.dmp

Filesize
5.0MB

Download
memory/3020-120-0x00000000058B0000-0x00000000058B1000-memory.dmp

Filesize
4KB

Download
memory/3020-115-0x0000000000D60000-0x0000000000D61000-memory.dmp

Filesize
4KB

Download
memory/3020-118-0x0000000005900000-0x0000000005901000-memory.dmp

Filesize
4KB

Download
memory/3020-117-0x0000000005D60000-0x0000000005D61000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads