xpertrat | 18bea0cb94e7c9213588f2e8b500d66f4716c0e6ae1b68ec62ba28c64c627ca5

General

Target
IMG-SMH-2021-1011-Fiyat Talebi 100967-TRK.pdf(56KB).exe
Size 436KB
Sample211110-jcdvxsgec5
SHA256 18bea0cb94e7c9213588f2e8b500d66f4716c0e6ae1b68ec62ba28c64c627ca5
MD5 b3b9a674a9f1a42a359d26bc0ca832a7
SHA1 33ea6cd06f21474da8bd6dd9290765f3a33518dc
SHA512 88bf57a14e255e058009c762ca357e7f7c11f3e553184b94f7908d82a7a1bcd069957b3ff9c7229133f845a7b1bcde53caacadeeb19a5f0df390f386606424c7
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
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\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0 = "C:\\Users\\Admin\\AppData\\Roaming\\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0.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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	IMG-SMH-2021-1011-Fiyat Talebi 100967-TRK.pdf(56KB).exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	IMG-SMH-2021-1011-Fiyat Talebi 100967-TRK.pdf(56KB).exe

Deletes itself 1 IoCs

pid	Process
1536	notepad.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"	IMG-SMH-2021-1011-Fiyat Talebi 100967-TRK.pdf(56KB).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-1-5-21-1042495040-510797905-2613508344-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Windows\CurrentVersion\Run\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0 = "C:\\Users\\Admin\\AppData\\Roaming\\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0.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\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0 = "C:\\Users\\Admin\\AppData\\Roaming\\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0.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"	IMG-SMH-2021-1011-Fiyat Talebi 100967-TRK.pdf(56KB).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	IMG-SMH-2021-1011-Fiyat Talebi 100967-TRK.pdf(56KB).exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum\0	IMG-SMH-2021-1011-Fiyat Talebi 100967-TRK.pdf(56KB).exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2716 set thread context of 892	2716	IMG-SMH-2021-1011-Fiyat Talebi 100967-TRK.pdf(56KB).exe	69
PID 892 set thread context of 2564	892	IMG-SMH-2021-1011-Fiyat Talebi 100967-TRK.pdf(56KB).exe	70

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
892	IMG-SMH-2021-1011-Fiyat Talebi 100967-TRK.pdf(56KB).exe
892	IMG-SMH-2021-1011-Fiyat Talebi 100967-TRK.pdf(56KB).exe
892	IMG-SMH-2021-1011-Fiyat Talebi 100967-TRK.pdf(56KB).exe
892	IMG-SMH-2021-1011-Fiyat Talebi 100967-TRK.pdf(56KB).exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2564	iexplore.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
892	IMG-SMH-2021-1011-Fiyat Talebi 100967-TRK.pdf(56KB).exe
2564	iexplore.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2716 wrote to memory of 892	2716	IMG-SMH-2021-1011-Fiyat Talebi 100967-TRK.pdf(56KB).exe	69
PID 2716 wrote to memory of 892	2716	IMG-SMH-2021-1011-Fiyat Talebi 100967-TRK.pdf(56KB).exe	69
PID 2716 wrote to memory of 892	2716	IMG-SMH-2021-1011-Fiyat Talebi 100967-TRK.pdf(56KB).exe	69
PID 2716 wrote to memory of 892	2716	IMG-SMH-2021-1011-Fiyat Talebi 100967-TRK.pdf(56KB).exe	69
PID 2716 wrote to memory of 892	2716	IMG-SMH-2021-1011-Fiyat Talebi 100967-TRK.pdf(56KB).exe	69
PID 2716 wrote to memory of 892	2716	IMG-SMH-2021-1011-Fiyat Talebi 100967-TRK.pdf(56KB).exe	69
PID 2716 wrote to memory of 892	2716	IMG-SMH-2021-1011-Fiyat Talebi 100967-TRK.pdf(56KB).exe	69
PID 892 wrote to memory of 2564	892	IMG-SMH-2021-1011-Fiyat Talebi 100967-TRK.pdf(56KB).exe	70
PID 892 wrote to memory of 2564	892	IMG-SMH-2021-1011-Fiyat Talebi 100967-TRK.pdf(56KB).exe	70
PID 892 wrote to memory of 2564	892	IMG-SMH-2021-1011-Fiyat Talebi 100967-TRK.pdf(56KB).exe	70
PID 892 wrote to memory of 2564	892	IMG-SMH-2021-1011-Fiyat Talebi 100967-TRK.pdf(56KB).exe	70
PID 892 wrote to memory of 2564	892	IMG-SMH-2021-1011-Fiyat Talebi 100967-TRK.pdf(56KB).exe	70
PID 892 wrote to memory of 2564	892	IMG-SMH-2021-1011-Fiyat Talebi 100967-TRK.pdf(56KB).exe	70
PID 892 wrote to memory of 2564	892	IMG-SMH-2021-1011-Fiyat Talebi 100967-TRK.pdf(56KB).exe	70
PID 892 wrote to memory of 2564	892	IMG-SMH-2021-1011-Fiyat Talebi 100967-TRK.pdf(56KB).exe	70
PID 2564 wrote to memory of 1536	2564	iexplore.exe	71
PID 2564 wrote to memory of 1536	2564	iexplore.exe	71
PID 2564 wrote to memory of 1536	2564	iexplore.exe	71
PID 2564 wrote to memory of 1536	2564	iexplore.exe	71

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"	IMG-SMH-2021-1011-Fiyat Talebi 100967-TRK.pdf(56KB).exe

C:\Users\Admin\AppData\Local\Temp\IMG-SMH-2021-1011-Fiyat Talebi 100967-TRK.pdf(56KB).exe
"C:\Users\Admin\AppData\Local\Temp\IMG-SMH-2021-1011-Fiyat Talebi 100967-TRK.pdf(56KB).exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2716
- C:\Users\Admin\AppData\Local\Temp\IMG-SMH-2021-1011-Fiyat Talebi 100967-TRK.pdf(56KB).exe
  "C:\Users\Admin\AppData\Local\Temp\IMG-SMH-2021-1011-Fiyat Talebi 100967-TRK.pdf(56KB).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:892
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    C:\Users\Admin\AppData\Local\Temp\IMG-SMH-2021-1011-Fiyat Talebi 100967-TRK.pdf(56KB).exe
    3⤵
    - Adds policy Run key to start application
    - Adds Run key to start application
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2564
  - - C:\Windows\SysWOW64\notepad.exe
      notepad.exe
      4⤵
      Deletes itself
      PID:1536