xpertrat | 7aa6ba1ed3e72514eac19d8b9ee4f95a17e33b63159bc75bd57ad8b38ce6361e

General

Target
40e678e7d38a1541c06d16895d75f856.exe
Size 774KB
Sample210421-egpecxpjea
SHA256 7aa6ba1ed3e72514eac19d8b9ee4f95a17e33b63159bc75bd57ad8b38ce6361e
MD5 40e678e7d38a1541c06d16895d75f856
SHA1 5faee553c8dc1cc0492d7b8b78329ac56100c040
SHA512 4abce8638860dc80ec23516aba60cd1c87a66c8a98fb62730e042a8f78841afe45fd2c021f15395a06eb0b4b4e6a95809ce0d8d6806f95c2cc516caa7362be22
MD5 SHA1 SHA512

Score

10^/10

xpertrat xxx evasion persistence rat trojan

Malware Config

Extracted

Family

xpertrat

Version

3.0.10

Botnet

XXX

C2

kapasky-antivirus.firewall-gateway.net:2054
kapasky-antivirus.firewall-gateway.net:4000

Mutex

U4G3L113-M7Y0-X0M5-M3D5-U8C7U551Q8Q7

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

resource	yara_rule
behavioral1/memory/864-70-0x0000000000400000-0x0000000000443000-memory.dmp	xpertrat
behavioral1/memory/1156-74-0x0000000000401364-mapping.dmp	xpertrat

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

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\U4G3L113-M7Y0-X0M5-M3D5-U8C7U551Q8Q7 = "C:\\Users\\Admin\\AppData\\Roaming\\U4G3L113-M7Y0-X0M5-M3D5-U8C7U551Q8Q7\\U4G3L113-M7Y0-X0M5-M3D5-U8C7U551Q8Q7.exe"	iexplore.exe

Windows security modification 2 TTPs 1 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UACDisableNotify = "0"	40e678e7d38a1541c06d16895d75f856.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	iexplore.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\U4G3L113-M7Y0-X0M5-M3D5-U8C7U551Q8Q7 = "C:\\Users\\Admin\\AppData\\Roaming\\U4G3L113-M7Y0-X0M5-M3D5-U8C7U551Q8Q7\\U4G3L113-M7Y0-X0M5-M3D5-U8C7U551Q8Q7.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\U4G3L113-M7Y0-X0M5-M3D5-U8C7U551Q8Q7 = "C:\\Users\\Admin\\AppData\\Roaming\\U4G3L113-M7Y0-X0M5-M3D5-U8C7U551Q8Q7\\U4G3L113-M7Y0-X0M5-M3D5-U8C7U551Q8Q7.exe"	iexplore.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	40e678e7d38a1541c06d16895d75f856.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1820 set thread context of 668	1820	40e678e7d38a1541c06d16895d75f856.exe	29
PID 668 set thread context of 864	668	40e678e7d38a1541c06d16895d75f856.exe	30
PID 668 set thread context of 1156	668	40e678e7d38a1541c06d16895d75f856.exe	31

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
668	40e678e7d38a1541c06d16895d75f856.exe
668	40e678e7d38a1541c06d16895d75f856.exe
668	40e678e7d38a1541c06d16895d75f856.exe
668	40e678e7d38a1541c06d16895d75f856.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1156	iexplore.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
668	40e678e7d38a1541c06d16895d75f856.exe
1156	iexplore.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1820 wrote to memory of 668	1820	40e678e7d38a1541c06d16895d75f856.exe	29
PID 1820 wrote to memory of 668	1820	40e678e7d38a1541c06d16895d75f856.exe	29
PID 1820 wrote to memory of 668	1820	40e678e7d38a1541c06d16895d75f856.exe	29
PID 1820 wrote to memory of 668	1820	40e678e7d38a1541c06d16895d75f856.exe	29
PID 1820 wrote to memory of 668	1820	40e678e7d38a1541c06d16895d75f856.exe	29
PID 1820 wrote to memory of 668	1820	40e678e7d38a1541c06d16895d75f856.exe	29
PID 1820 wrote to memory of 668	1820	40e678e7d38a1541c06d16895d75f856.exe	29
PID 1820 wrote to memory of 668	1820	40e678e7d38a1541c06d16895d75f856.exe	29
PID 668 wrote to memory of 864	668	40e678e7d38a1541c06d16895d75f856.exe	30
PID 668 wrote to memory of 864	668	40e678e7d38a1541c06d16895d75f856.exe	30
PID 668 wrote to memory of 864	668	40e678e7d38a1541c06d16895d75f856.exe	30
PID 668 wrote to memory of 864	668	40e678e7d38a1541c06d16895d75f856.exe	30
PID 668 wrote to memory of 864	668	40e678e7d38a1541c06d16895d75f856.exe	30
PID 668 wrote to memory of 864	668	40e678e7d38a1541c06d16895d75f856.exe	30
PID 668 wrote to memory of 864	668	40e678e7d38a1541c06d16895d75f856.exe	30
PID 668 wrote to memory of 864	668	40e678e7d38a1541c06d16895d75f856.exe	30
PID 668 wrote to memory of 864	668	40e678e7d38a1541c06d16895d75f856.exe	30
PID 668 wrote to memory of 1156	668	40e678e7d38a1541c06d16895d75f856.exe	31
PID 668 wrote to memory of 1156	668	40e678e7d38a1541c06d16895d75f856.exe	31
PID 668 wrote to memory of 1156	668	40e678e7d38a1541c06d16895d75f856.exe	31
PID 668 wrote to memory of 1156	668	40e678e7d38a1541c06d16895d75f856.exe	31
PID 668 wrote to memory of 1156	668	40e678e7d38a1541c06d16895d75f856.exe	31
PID 668 wrote to memory of 1156	668	40e678e7d38a1541c06d16895d75f856.exe	31
PID 668 wrote to memory of 1156	668	40e678e7d38a1541c06d16895d75f856.exe	31
PID 668 wrote to memory of 1156	668	40e678e7d38a1541c06d16895d75f856.exe	31
PID 668 wrote to memory of 1156	668	40e678e7d38a1541c06d16895d75f856.exe	31

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	40e678e7d38a1541c06d16895d75f856.exe

C:\Users\Admin\AppData\Local\Temp\40e678e7d38a1541c06d16895d75f856.exe
"C:\Users\Admin\AppData\Local\Temp\40e678e7d38a1541c06d16895d75f856.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1820
- C:\Users\Admin\AppData\Local\Temp\40e678e7d38a1541c06d16895d75f856.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:668
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    C:\Users\Admin\AppData\Local\Temp\40e678e7d38a1541c06d16895d75f856.exe
    3⤵
    PID:864
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    C:\Users\Admin\AppData\Local\Temp\40e678e7d38a1541c06d16895d75f856.exe
    3⤵
    - Adds policy Run key to start application
    - Adds Run key to start application
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:1156

Network

MITRE ATT&CK Enterprise 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

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/668-66-0x0000000000400000-0x000000000042C000-memory.dmp

Download

memory/864-70-0x0000000000400000-0x0000000000443000-memory.dmp

Download

memory/1156-75-0x00000000007B0000-0x0000000000903000-memory.dmp

Download

memory/1156-78-0x0000000076641000-0x0000000076643000-memory.dmp

Download

memory/1820-60-0x0000000000DC0000-0x0000000000DC1000-memory.dmp

Download

memory/1820-62-0x0000000004BF0000-0x0000000004BF1000-memory.dmp

Download

memory/1820-63-0x0000000000260000-0x000000000026E000-memory.dmp

Download

memory/1820-64-0x00000000057E0000-0x00000000058A5000-memory.dmp

Download

memory/1820-65-0x00000000058B0000-0x0000000005927000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads