xpertrat | c199073c64d105494e8c71b079f32999f0cfc363cc530149b8e2e68b6b9be2c7

General

Target
15bdbbb74d12a8fb5e0d6cd961e06e63bb17c3fffe8f75387512010e3c9ff189.bin.exe
Size 483KB
Sample211123-x2arfsbafm
SHA256 15bdbbb74d12a8fb5e0d6cd961e06e63bb17c3fffe8f75387512010e3c9ff189
MD5 a356907e372f5e4558150d0eb14a9aae
SHA1 2493f4864ce1d4dc86197351dc4cdda099a5ba73
SHA512 4c75bee75e4c4a1a80c03c042c5c672aeb92fd0feba42eb4b2dee9dfd3e0eb15d9434cd8e7f729a2e4c4ca7e907b113f2fe3289419346973a2826ac65987d483
MD5 SHA1 SHA512

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
Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6 = "C:\\Users\\Admin\\AppData\\Roaming\\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6\\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6.exe"	iexplore.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	iexplore.exe

Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	15bdbbb74d12a8fb5e0d6cd961e06e63bb17c3fffe8f75387512010e3c9ff189.bin.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	15bdbbb74d12a8fb5e0d6cd961e06e63bb17c3fffe8f75387512010e3c9ff189.bin.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"	15bdbbb74d12a8fb5e0d6cd961e06e63bb17c3fffe8f75387512010e3c9ff189.bin.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\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\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6 = "C:\\Users\\Admin\\AppData\\Roaming\\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6\\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6.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\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6 = "C:\\Users\\Admin\\AppData\\Roaming\\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6\\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6.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"	15bdbbb74d12a8fb5e0d6cd961e06e63bb17c3fffe8f75387512010e3c9ff189.bin.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	15bdbbb74d12a8fb5e0d6cd961e06e63bb17c3fffe8f75387512010e3c9ff189.bin.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum\0	15bdbbb74d12a8fb5e0d6cd961e06e63bb17c3fffe8f75387512010e3c9ff189.bin.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2728 set thread context of 692	2728	15bdbbb74d12a8fb5e0d6cd961e06e63bb17c3fffe8f75387512010e3c9ff189.bin.exe	69
PID 692 set thread context of 1632	692	15bdbbb74d12a8fb5e0d6cd961e06e63bb17c3fffe8f75387512010e3c9ff189.bin.exe	70

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
692	15bdbbb74d12a8fb5e0d6cd961e06e63bb17c3fffe8f75387512010e3c9ff189.bin.exe
692	15bdbbb74d12a8fb5e0d6cd961e06e63bb17c3fffe8f75387512010e3c9ff189.bin.exe
692	15bdbbb74d12a8fb5e0d6cd961e06e63bb17c3fffe8f75387512010e3c9ff189.bin.exe
692	15bdbbb74d12a8fb5e0d6cd961e06e63bb17c3fffe8f75387512010e3c9ff189.bin.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1632	iexplore.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
692	15bdbbb74d12a8fb5e0d6cd961e06e63bb17c3fffe8f75387512010e3c9ff189.bin.exe
1632	iexplore.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2728 wrote to memory of 692	2728	15bdbbb74d12a8fb5e0d6cd961e06e63bb17c3fffe8f75387512010e3c9ff189.bin.exe	69
PID 2728 wrote to memory of 692	2728	15bdbbb74d12a8fb5e0d6cd961e06e63bb17c3fffe8f75387512010e3c9ff189.bin.exe	69
PID 2728 wrote to memory of 692	2728	15bdbbb74d12a8fb5e0d6cd961e06e63bb17c3fffe8f75387512010e3c9ff189.bin.exe	69
PID 2728 wrote to memory of 692	2728	15bdbbb74d12a8fb5e0d6cd961e06e63bb17c3fffe8f75387512010e3c9ff189.bin.exe	69
PID 2728 wrote to memory of 692	2728	15bdbbb74d12a8fb5e0d6cd961e06e63bb17c3fffe8f75387512010e3c9ff189.bin.exe	69
PID 2728 wrote to memory of 692	2728	15bdbbb74d12a8fb5e0d6cd961e06e63bb17c3fffe8f75387512010e3c9ff189.bin.exe	69
PID 2728 wrote to memory of 692	2728	15bdbbb74d12a8fb5e0d6cd961e06e63bb17c3fffe8f75387512010e3c9ff189.bin.exe	69
PID 692 wrote to memory of 1632	692	15bdbbb74d12a8fb5e0d6cd961e06e63bb17c3fffe8f75387512010e3c9ff189.bin.exe	70
PID 692 wrote to memory of 1632	692	15bdbbb74d12a8fb5e0d6cd961e06e63bb17c3fffe8f75387512010e3c9ff189.bin.exe	70
PID 692 wrote to memory of 1632	692	15bdbbb74d12a8fb5e0d6cd961e06e63bb17c3fffe8f75387512010e3c9ff189.bin.exe	70
PID 692 wrote to memory of 1632	692	15bdbbb74d12a8fb5e0d6cd961e06e63bb17c3fffe8f75387512010e3c9ff189.bin.exe	70
PID 692 wrote to memory of 1632	692	15bdbbb74d12a8fb5e0d6cd961e06e63bb17c3fffe8f75387512010e3c9ff189.bin.exe	70
PID 692 wrote to memory of 1632	692	15bdbbb74d12a8fb5e0d6cd961e06e63bb17c3fffe8f75387512010e3c9ff189.bin.exe	70
PID 692 wrote to memory of 1632	692	15bdbbb74d12a8fb5e0d6cd961e06e63bb17c3fffe8f75387512010e3c9ff189.bin.exe	70
PID 692 wrote to memory of 1632	692	15bdbbb74d12a8fb5e0d6cd961e06e63bb17c3fffe8f75387512010e3c9ff189.bin.exe	70

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"	15bdbbb74d12a8fb5e0d6cd961e06e63bb17c3fffe8f75387512010e3c9ff189.bin.exe

C:\Users\Admin\AppData\Local\Temp\15bdbbb74d12a8fb5e0d6cd961e06e63bb17c3fffe8f75387512010e3c9ff189.bin.exe
"C:\Users\Admin\AppData\Local\Temp\15bdbbb74d12a8fb5e0d6cd961e06e63bb17c3fffe8f75387512010e3c9ff189.bin.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2728
- C:\Users\Admin\AppData\Local\Temp\15bdbbb74d12a8fb5e0d6cd961e06e63bb17c3fffe8f75387512010e3c9ff189.bin.exe
  "C:\Users\Admin\AppData\Local\Temp\15bdbbb74d12a8fb5e0d6cd961e06e63bb17c3fffe8f75387512010e3c9ff189.bin.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:692
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    C:\Users\Admin\AppData\Local\Temp\15bdbbb74d12a8fb5e0d6cd961e06e63bb17c3fffe8f75387512010e3c9ff189.bin.exe
    3⤵
    - Adds policy Run key to start application
    - Adds Run key to start application
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:1632