xpertrat | 97ccd53d7d9abd378152b48894064f0c226d40a40a19f9ca485bbf5c062d02ca

General

Target

Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe
Size

1.1MB
MD5

1bad21957abf5597d295ed971faf1ffc
SHA1

a72a8de5dcdcf6d7b71e932c482cfa69d81ff28d
SHA256

97ccd53d7d9abd378152b48894064f0c226d40a40a19f9ca485bbf5c062d02ca
SHA512

3101c0680c088575e1bf0835b2d2ad3d545cfb20360e163f3d81af02edc73ea72d3e24e30cb91aadb3db9d05267d21245ab2c8a21686e64ed9321ee4e09682a9

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

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\A1F5W2I0-X6V4-A4D3-L3U1-J445Y8L0L337 = "C:\\Users\\Admin\\AppData\\Roaming\\A1F5W2I0-X6V4-A4D3-L3U1-J445Y8L0L337\\A1F5W2I0-X6V4-A4D3-L3U1-J445Y8L0L337.exe"	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

Processes:

Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe

Windows security modification 2 TTPs 1 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0"	Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).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\A1F5W2I0-X6V4-A4D3-L3U1-J445Y8L0L337 = "C:\\Users\\Admin\\AppData\\Roaming\\A1F5W2I0-X6V4-A4D3-L3U1-J445Y8L0L337\\A1F5W2I0-X6V4-A4D3-L3U1-J445Y8L0L337.exe"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-369956170-74428499-1628131376-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-369956170-74428499-1628131376-1000\Software\Microsoft\Windows\CurrentVersion\Run\A1F5W2I0-X6V4-A4D3-L3U1-J445Y8L0L337 = "C:\\Users\\Admin\\AppData\\Roaming\\A1F5W2I0-X6V4-A4D3-L3U1-J445Y8L0L337\\A1F5W2I0-X6V4-A4D3-L3U1-J445Y8L0L337.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:

Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).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

Processes:

Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum\0	Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exeExpo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe

description	pid	process	target process
PID 3056 set thread context of 2696	3056	Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe	Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe
PID 2696 set thread context of 1064	2696	Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe

pid	process
2696	Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe
2696	Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe
2696	Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe
2696	Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

iexplore.exe

description pid process

Token: SeDebugPrivilege 1064 iexplore.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exeiexplore.exe

pid process

2696 Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe
1064 iexplore.exe

description	pid	process
Token: SeDebugPrivilege	1064	iexplore.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exeExpo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe

description	pid	process	target process
PID 3056 wrote to memory of 2696	3056	Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe	Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe
PID 3056 wrote to memory of 2696	3056	Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe	Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe
PID 3056 wrote to memory of 2696	3056	Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe	Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe
PID 3056 wrote to memory of 2696	3056	Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe	Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe
PID 3056 wrote to memory of 2696	3056	Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe	Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe
PID 3056 wrote to memory of 2696	3056	Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe	Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe
PID 3056 wrote to memory of 2696	3056	Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe	Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe
PID 2696 wrote to memory of 1064	2696	Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe	iexplore.exe
PID 2696 wrote to memory of 1064	2696	Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe	iexplore.exe
PID 2696 wrote to memory of 1064	2696	Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe	iexplore.exe
PID 2696 wrote to memory of 1064	2696	Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe	iexplore.exe
PID 2696 wrote to memory of 1064	2696	Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe	iexplore.exe
PID 2696 wrote to memory of 1064	2696	Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe	iexplore.exe
PID 2696 wrote to memory of 1064	2696	Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe	iexplore.exe
PID 2696 wrote to memory of 1064	2696	Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe	iexplore.exe

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

Processes:

Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe

C:\Users\Admin\AppData\Local\Temp\Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe
"C:\Users\Admin\AppData\Local\Temp\Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3056

C:\Users\Admin\AppData\Local\Temp\Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe
"C:\Users\Admin\AppData\Local\Temp\Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).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:2696

C:\Program Files (x86)\Internet Explorer\iexplore.exe
C:\Users\Admin\AppData\Local\Temp\Expo_REQUEST FOR QUOTATION 2021-0912.PDF(79KB).exe
3⤵
- Adds policy Run key to start application
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1064

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

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1064-130-0x0000000000401364-mapping.dmp

Download
memory/2696-126-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/2696-131-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/2696-129-0x0000000000C80000-0x0000000000C8A000-memory.dmp

Filesize
40KB

Download
memory/2696-128-0x0000000000C80000-0x0000000000C86000-memory.dmp

Filesize
24KB

Download
memory/2696-127-0x00000000004010B8-mapping.dmp

Download
memory/3056-120-0x0000000005870000-0x0000000005902000-memory.dmp

Filesize
584KB

Download
memory/3056-123-0x0000000008E80000-0x0000000008E81000-memory.dmp

Filesize
4KB

Download
memory/3056-124-0x0000000008F20000-0x0000000009039000-memory.dmp

Filesize
1.1MB

Download
memory/3056-125-0x0000000009220000-0x0000000009221000-memory.dmp

Filesize
4KB

Download
memory/3056-122-0x0000000007330000-0x0000000007331000-memory.dmp

Filesize
4KB

Download
memory/3056-121-0x0000000005E20000-0x0000000005E27000-memory.dmp

Filesize
28KB

Download
memory/3056-115-0x0000000000FC0000-0x0000000000FC1000-memory.dmp

Filesize
4KB

Download
memory/3056-119-0x0000000005A90000-0x0000000005A91000-memory.dmp

Filesize
4KB

Download
memory/3056-118-0x0000000005930000-0x0000000005931000-memory.dmp

Filesize
4KB

Download
memory/3056-117-0x0000000005E30000-0x0000000005E31000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads