xpertrat | bc2a5e452669de43c4f4533c995b515bace2941ea5b45bb537085b204ee5d54b

General

Target

49af0abba03a7d559171f378728e9bc7.exe
Size

33KB
MD5

49af0abba03a7d559171f378728e9bc7
SHA1

7e6e1ccf693bb62f2a36119996583228a9e5c665
SHA256

bc2a5e452669de43c4f4533c995b515bace2941ea5b45bb537085b204ee5d54b
SHA512

d155349a6dae76775b26a96ec00a8dc860749eb46450c6dcc479303afa01325b1fb31b41c8adac3cbabb2b17c7b23a6768949a8bf5221c3edee0a25082e71a8f

Score

10^/10

xpertrat test evasion persistence rat trojan

Malware Config

Extracted

Family

xpertrat

Version

3.0.10

Botnet

Test

C2

kapasky-antivirus.firewall-gateway.net:4000

Mutex

L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0

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

Processes:

resource	yara_rule
behavioral2/memory/1764-175-0x0000000000400000-0x0000000000443000-memory.dmp	xpertrat
behavioral2/memory/1764-176-0x0000000000401364-mapping.dmp	xpertrat

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

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\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0 = "C:\\Users\\Admin\\AppData\\Roaming\\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0.exe"	iexplore.exe

Deletes itself 1 IoCs

Processes:

notepad.exe

pid process

1300 notepad.exe

pid	process
1300	notepad.exe

Windows security modification 2 TTPs 1 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

49af0abba03a7d559171f378728e9bc7.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0"	49af0abba03a7d559171f378728e9bc7.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-1-5-21-1594587808-2047097707-2163810515-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\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

Processes:

49af0abba03a7d559171f378728e9bc7.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	49af0abba03a7d559171f378728e9bc7.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

396 3868 WerFault.exe iexplore.exe

pid	pid_target	process	target process
396	3868	WerFault.exe	iexplore.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

49af0abba03a7d559171f378728e9bc7.exe49af0abba03a7d559171f378728e9bc7.exe

description	pid	process	target process
PID 656 set thread context of 3144	656	49af0abba03a7d559171f378728e9bc7.exe	49af0abba03a7d559171f378728e9bc7.exe
PID 3144 set thread context of 3868	3144	49af0abba03a7d559171f378728e9bc7.exe	iexplore.exe
PID 3144 set thread context of 1764	3144	49af0abba03a7d559171f378728e9bc7.exe	iexplore.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 14 IoCs

Processes:

powershell.exepowershell.exe49af0abba03a7d559171f378728e9bc7.exe49af0abba03a7d559171f378728e9bc7.exe

pid	process
1056	powershell.exe
1056	powershell.exe
1056	powershell.exe
2360	powershell.exe
2360	powershell.exe
2360	powershell.exe
656	49af0abba03a7d559171f378728e9bc7.exe
656	49af0abba03a7d559171f378728e9bc7.exe
3144	49af0abba03a7d559171f378728e9bc7.exe
3144	49af0abba03a7d559171f378728e9bc7.exe
3144	49af0abba03a7d559171f378728e9bc7.exe
3144	49af0abba03a7d559171f378728e9bc7.exe
3144	49af0abba03a7d559171f378728e9bc7.exe
3144	49af0abba03a7d559171f378728e9bc7.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

powershell.exepowershell.exe49af0abba03a7d559171f378728e9bc7.exeiexplore.exe

description	pid	process
Token: SeDebugPrivilege	1056	powershell.exe
Token: SeDebugPrivilege	2360	powershell.exe
Token: SeDebugPrivilege	656	49af0abba03a7d559171f378728e9bc7.exe
Token: SeDebugPrivilege	1764	iexplore.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

49af0abba03a7d559171f378728e9bc7.exeiexplore.exe

pid process

3144 49af0abba03a7d559171f378728e9bc7.exe
1764 iexplore.exe

pid	process
3144	49af0abba03a7d559171f378728e9bc7.exe
1764	iexplore.exe

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

49af0abba03a7d559171f378728e9bc7.exe49af0abba03a7d559171f378728e9bc7.exeiexplore.exe

description	pid	process	target process
PID 656 wrote to memory of 1056	656	49af0abba03a7d559171f378728e9bc7.exe	powershell.exe
PID 656 wrote to memory of 1056	656	49af0abba03a7d559171f378728e9bc7.exe	powershell.exe
PID 656 wrote to memory of 1056	656	49af0abba03a7d559171f378728e9bc7.exe	powershell.exe
PID 656 wrote to memory of 2360	656	49af0abba03a7d559171f378728e9bc7.exe	powershell.exe
PID 656 wrote to memory of 2360	656	49af0abba03a7d559171f378728e9bc7.exe	powershell.exe
PID 656 wrote to memory of 2360	656	49af0abba03a7d559171f378728e9bc7.exe	powershell.exe
PID 656 wrote to memory of 3144	656	49af0abba03a7d559171f378728e9bc7.exe	49af0abba03a7d559171f378728e9bc7.exe
PID 656 wrote to memory of 3144	656	49af0abba03a7d559171f378728e9bc7.exe	49af0abba03a7d559171f378728e9bc7.exe
PID 656 wrote to memory of 3144	656	49af0abba03a7d559171f378728e9bc7.exe	49af0abba03a7d559171f378728e9bc7.exe
PID 656 wrote to memory of 3144	656	49af0abba03a7d559171f378728e9bc7.exe	49af0abba03a7d559171f378728e9bc7.exe
PID 656 wrote to memory of 3144	656	49af0abba03a7d559171f378728e9bc7.exe	49af0abba03a7d559171f378728e9bc7.exe
PID 656 wrote to memory of 3144	656	49af0abba03a7d559171f378728e9bc7.exe	49af0abba03a7d559171f378728e9bc7.exe
PID 656 wrote to memory of 3144	656	49af0abba03a7d559171f378728e9bc7.exe	49af0abba03a7d559171f378728e9bc7.exe
PID 3144 wrote to memory of 3868	3144	49af0abba03a7d559171f378728e9bc7.exe	iexplore.exe
PID 3144 wrote to memory of 3868	3144	49af0abba03a7d559171f378728e9bc7.exe	iexplore.exe
PID 3144 wrote to memory of 3868	3144	49af0abba03a7d559171f378728e9bc7.exe	iexplore.exe
PID 3144 wrote to memory of 3868	3144	49af0abba03a7d559171f378728e9bc7.exe	iexplore.exe
PID 3144 wrote to memory of 3868	3144	49af0abba03a7d559171f378728e9bc7.exe	iexplore.exe
PID 3144 wrote to memory of 3868	3144	49af0abba03a7d559171f378728e9bc7.exe	iexplore.exe
PID 3144 wrote to memory of 3868	3144	49af0abba03a7d559171f378728e9bc7.exe	iexplore.exe
PID 3144 wrote to memory of 3868	3144	49af0abba03a7d559171f378728e9bc7.exe	iexplore.exe
PID 3144 wrote to memory of 1764	3144	49af0abba03a7d559171f378728e9bc7.exe	iexplore.exe
PID 3144 wrote to memory of 1764	3144	49af0abba03a7d559171f378728e9bc7.exe	iexplore.exe
PID 3144 wrote to memory of 1764	3144	49af0abba03a7d559171f378728e9bc7.exe	iexplore.exe
PID 3144 wrote to memory of 1764	3144	49af0abba03a7d559171f378728e9bc7.exe	iexplore.exe
PID 3144 wrote to memory of 1764	3144	49af0abba03a7d559171f378728e9bc7.exe	iexplore.exe
PID 3144 wrote to memory of 1764	3144	49af0abba03a7d559171f378728e9bc7.exe	iexplore.exe
PID 3144 wrote to memory of 1764	3144	49af0abba03a7d559171f378728e9bc7.exe	iexplore.exe
PID 3144 wrote to memory of 1764	3144	49af0abba03a7d559171f378728e9bc7.exe	iexplore.exe
PID 1764 wrote to memory of 1300	1764	iexplore.exe	notepad.exe
PID 1764 wrote to memory of 1300	1764	iexplore.exe	notepad.exe
PID 1764 wrote to memory of 1300	1764	iexplore.exe	notepad.exe
PID 1764 wrote to memory of 1300	1764	iexplore.exe	notepad.exe

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

Processes:

49af0abba03a7d559171f378728e9bc7.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	49af0abba03a7d559171f378728e9bc7.exe

C:\Users\Admin\AppData\Local\Temp\49af0abba03a7d559171f378728e9bc7.exe
"C:\Users\Admin\AppData\Local\Temp\49af0abba03a7d559171f378728e9bc7.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:656
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Start-Sleep -Seconds 3
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1056
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Start-Sleep -s 15
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2360
- C:\Users\Admin\AppData\Local\Temp\49af0abba03a7d559171f378728e9bc7.exe
  C:\Users\Admin\AppData\Local\Temp\49af0abba03a7d559171f378728e9bc7.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:3144
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    C:\Users\Admin\AppData\Local\Temp\49af0abba03a7d559171f378728e9bc7.exe
    3⤵
    PID:3868
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3868 -s 100
      4⤵
      Program crash
      PID:396
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    C:\Users\Admin\AppData\Local\Temp\49af0abba03a7d559171f378728e9bc7.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:1764
  - - C:\Windows\SysWOW64\notepad.exe
      notepad.exe
      4⤵
      Deletes itself
      PID:1300

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

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

MD5
66382a4ca6c4dcf75ce41417d44be93e

SHA1
8132cbef1c12f8a89a68a6153ade4286bf130812

SHA256
a70acce0f4c6ab59b88ce79d84c38d4abffe19b72b033250499b17d788a2db56

SHA512
2bf66f2850f4a65220085c55a5b3c8866453104d78fe516e5bd6e3e47df783062ce4ea10de580f2eb0274ac8c3ce71965201c49ef55a78f307731ccc8600aadc

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

MD5
d6618ccec6ef1c78233d4f41a2b9805d

SHA1
7aa1f883a954595872973a341f1f5012da557c08

SHA256
edb8c39176df911fa5bb3b41073647ad86beed644eae778dbc65e70e35196fe9

SHA512
5fee1668d1712ee8baf29e8fe004cd623403553366c43b9efe27b49424f59f9aafeeb95954e2af4c2fe4719d7541e1e6e2ffea0d893bfac881ed50749ca4b660

Download Submit
memory/656-114-0x00000000008C0000-0x00000000008C1000-memory.dmp

Filesize
4KB

Download
memory/656-116-0x0000000005750000-0x0000000005751000-memory.dmp

Filesize
4KB

Download
memory/656-117-0x0000000005250000-0x0000000005251000-memory.dmp

Filesize
4KB

Download
memory/656-118-0x0000000005230000-0x0000000005231000-memory.dmp

Filesize
4KB

Download
memory/656-119-0x00000000052F0000-0x00000000052F1000-memory.dmp

Filesize
4KB

Download
memory/656-167-0x0000000007670000-0x00000000076A0000-memory.dmp

Filesize
192KB

Download
memory/656-166-0x0000000008460000-0x00000000084AF000-memory.dmp

Filesize
316KB

Download
memory/1056-126-0x0000000004962000-0x0000000004963000-memory.dmp

Filesize
4KB

Download
memory/1056-154-0x0000000004963000-0x0000000004964000-memory.dmp

Filesize
4KB

Download
memory/1056-128-0x0000000007AA0000-0x0000000007AA1000-memory.dmp

Filesize
4KB

Download
memory/1056-129-0x00000000079C0000-0x00000000079C1000-memory.dmp

Filesize
4KB

Download
memory/1056-130-0x0000000007BF0000-0x0000000007BF1000-memory.dmp

Filesize
4KB

Download
memory/1056-131-0x0000000006F20000-0x0000000006F21000-memory.dmp

Filesize
4KB

Download
memory/1056-132-0x0000000008340000-0x0000000008341000-memory.dmp

Filesize
4KB

Download
memory/1056-133-0x0000000008410000-0x0000000008411000-memory.dmp

Filesize
4KB

Download
memory/1056-138-0x00000000098F0000-0x00000000098F1000-memory.dmp

Filesize
4KB

Download
memory/1056-139-0x0000000009080000-0x0000000009081000-memory.dmp

Filesize
4KB

Download
memory/1056-120-0x0000000000000000-mapping.dmp

Download
memory/1056-125-0x0000000004960000-0x0000000004961000-memory.dmp

Filesize
4KB

Download
memory/1056-124-0x00000000072F0000-0x00000000072F1000-memory.dmp

Filesize
4KB

Download
memory/1056-127-0x0000000007920000-0x0000000007921000-memory.dmp

Filesize
4KB

Download
memory/1056-123-0x0000000004880000-0x0000000004881000-memory.dmp

Filesize
4KB

Download
memory/1300-183-0x0000000000000000-mapping.dmp

Download
memory/1764-175-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/1764-180-0x00000000031E1000-0x00000000032DD000-memory.dmp

Filesize
1008KB

Download
memory/1764-179-0x00000000031E0000-0x0000000003333000-memory.dmp

Filesize
1.3MB

Download
memory/1764-176-0x0000000000401364-mapping.dmp

Download
memory/2360-141-0x0000000000000000-mapping.dmp

Download
memory/2360-156-0x0000000004F12000-0x0000000004F13000-memory.dmp

Filesize
4KB

Download
memory/2360-155-0x0000000004F10000-0x0000000004F11000-memory.dmp

Filesize
4KB

Download
memory/2360-165-0x0000000004F13000-0x0000000004F14000-memory.dmp

Filesize
4KB

Download
memory/3144-174-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/3144-169-0x00000000004010B8-mapping.dmp

Download
memory/3144-168-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/3868-173-0x0000000000401364-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads