xpertrat | 3ec377ffc5814c66d3417104617bc3a048448ef400c360480efc036c425afb95

Analysis

max time kernel
133s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20220310-en
submitted
14/04/2022, 12:44

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General

Target
SecuriteInfo.com.BackDoor.SpyBotNET.25.23558.exe
Size 667KB
Sample220414-pyf53ahabn
SHA256 3ec377ffc5814c66d3417104617bc3a048448ef400c360480efc036c425afb95
MD5 1ba1f5a8783628e45caad235c8f640cf
SHA1 b41e98059945ddb010d3b50e5d0c83ecdde79716
SHA512 75c8de68fad66ec3bc8bc8c4887ee561c4e8e8af3e41021213bad8ea06947f379adca14bd3c2fb3ca17f4ac4a17f6bcf5a4cc630fe9979b40b2f0a60efc2b4a9
MD5 SHA1 SHA512

Score

10^/10

xpertrat collection 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

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\Q4V8N5Y3-O0F7-P7T5-U113-K7R6L4T0H6H6 = "C:\\Users\\Admin\\AppData\\Roaming\\Q4V8N5Y3-O0F7-P7T5-U113-K7R6L4T0H6H6\\Q4V8N5Y3-O0F7-P7T5-U113-K7R6L4T0H6H6.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"	SecuriteInfo.com.BackDoor.SpyBotNET.25.23558.exe

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	iexplore.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-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Q4V8N5Y3-O0F7-P7T5-U113-K7R6L4T0H6H6 = "C:\\Users\\Admin\\AppData\\Roaming\\Q4V8N5Y3-O0F7-P7T5-U113-K7R6L4T0H6H6\\Q4V8N5Y3-O0F7-P7T5-U113-K7R6L4T0H6H6.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\Q4V8N5Y3-O0F7-P7T5-U113-K7R6L4T0H6H6 = "C:\\Users\\Admin\\AppData\\Roaming\\Q4V8N5Y3-O0F7-P7T5-U113-K7R6L4T0H6H6\\Q4V8N5Y3-O0F7-P7T5-U113-K7R6L4T0H6H6.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"	SecuriteInfo.com.BackDoor.SpyBotNET.25.23558.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4600	5012	WerFault.exe	96

Suspicious use of SetThreadContext 8 IoCs

description	pid	Process	procid_target
PID 4964 set thread context of 3700	4964	SecuriteInfo.com.BackDoor.SpyBotNET.25.23558.exe	91
PID 3700 set thread context of 1192	3700	SecuriteInfo.com.BackDoor.SpyBotNET.25.23558.exe	92
PID 1192 set thread context of 4476	1192	iexplore.exe	93
PID 1192 set thread context of 2260	1192	iexplore.exe	94
PID 1192 set thread context of 3824	1192	iexplore.exe	95
PID 1192 set thread context of 5012	1192	iexplore.exe	96
PID 1192 set thread context of 2440	1192	iexplore.exe	100
PID 1192 set thread context of 4120	1192	iexplore.exe	101

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3700	SecuriteInfo.com.BackDoor.SpyBotNET.25.23558.exe
3700	SecuriteInfo.com.BackDoor.SpyBotNET.25.23558.exe
3700	SecuriteInfo.com.BackDoor.SpyBotNET.25.23558.exe
3700	SecuriteInfo.com.BackDoor.SpyBotNET.25.23558.exe
4476	iexplore.exe
4476	iexplore.exe
3824	iexplore.exe
3824	iexplore.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1192	iexplore.exe
Token: SeDebugPrivilege	4476	iexplore.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3700	SecuriteInfo.com.BackDoor.SpyBotNET.25.23558.exe
1192	iexplore.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4964 wrote to memory of 3700	4964	SecuriteInfo.com.BackDoor.SpyBotNET.25.23558.exe	91
PID 4964 wrote to memory of 3700	4964	SecuriteInfo.com.BackDoor.SpyBotNET.25.23558.exe	91
PID 4964 wrote to memory of 3700	4964	SecuriteInfo.com.BackDoor.SpyBotNET.25.23558.exe	91
PID 4964 wrote to memory of 3700	4964	SecuriteInfo.com.BackDoor.SpyBotNET.25.23558.exe	91
PID 4964 wrote to memory of 3700	4964	SecuriteInfo.com.BackDoor.SpyBotNET.25.23558.exe	91
PID 4964 wrote to memory of 3700	4964	SecuriteInfo.com.BackDoor.SpyBotNET.25.23558.exe	91
PID 4964 wrote to memory of 3700	4964	SecuriteInfo.com.BackDoor.SpyBotNET.25.23558.exe	91
PID 3700 wrote to memory of 1192	3700	SecuriteInfo.com.BackDoor.SpyBotNET.25.23558.exe	92
PID 3700 wrote to memory of 1192	3700	SecuriteInfo.com.BackDoor.SpyBotNET.25.23558.exe	92
PID 3700 wrote to memory of 1192	3700	SecuriteInfo.com.BackDoor.SpyBotNET.25.23558.exe	92
PID 3700 wrote to memory of 1192	3700	SecuriteInfo.com.BackDoor.SpyBotNET.25.23558.exe	92
PID 3700 wrote to memory of 1192	3700	SecuriteInfo.com.BackDoor.SpyBotNET.25.23558.exe	92
PID 3700 wrote to memory of 1192	3700	SecuriteInfo.com.BackDoor.SpyBotNET.25.23558.exe	92
PID 3700 wrote to memory of 1192	3700	SecuriteInfo.com.BackDoor.SpyBotNET.25.23558.exe	92
PID 3700 wrote to memory of 1192	3700	SecuriteInfo.com.BackDoor.SpyBotNET.25.23558.exe	92
PID 1192 wrote to memory of 4476	1192	iexplore.exe	93
PID 1192 wrote to memory of 4476	1192	iexplore.exe	93
PID 1192 wrote to memory of 4476	1192	iexplore.exe	93
PID 1192 wrote to memory of 4476	1192	iexplore.exe	93
PID 1192 wrote to memory of 4476	1192	iexplore.exe	93
PID 1192 wrote to memory of 4476	1192	iexplore.exe	93
PID 1192 wrote to memory of 4476	1192	iexplore.exe	93
PID 1192 wrote to memory of 4476	1192	iexplore.exe	93
PID 1192 wrote to memory of 2260	1192	iexplore.exe	94
PID 1192 wrote to memory of 2260	1192	iexplore.exe	94
PID 1192 wrote to memory of 2260	1192	iexplore.exe	94
PID 1192 wrote to memory of 2260	1192	iexplore.exe	94
PID 1192 wrote to memory of 2260	1192	iexplore.exe	94
PID 1192 wrote to memory of 2260	1192	iexplore.exe	94
PID 1192 wrote to memory of 2260	1192	iexplore.exe	94
PID 1192 wrote to memory of 2260	1192	iexplore.exe	94
PID 1192 wrote to memory of 2260	1192	iexplore.exe	94
PID 1192 wrote to memory of 3824	1192	iexplore.exe	95
PID 1192 wrote to memory of 3824	1192	iexplore.exe	95
PID 1192 wrote to memory of 3824	1192	iexplore.exe	95
PID 1192 wrote to memory of 3824	1192	iexplore.exe	95
PID 1192 wrote to memory of 3824	1192	iexplore.exe	95
PID 1192 wrote to memory of 3824	1192	iexplore.exe	95
PID 1192 wrote to memory of 3824	1192	iexplore.exe	95
PID 1192 wrote to memory of 3824	1192	iexplore.exe	95
PID 1192 wrote to memory of 3824	1192	iexplore.exe	95
PID 1192 wrote to memory of 5012	1192	iexplore.exe	96
PID 1192 wrote to memory of 5012	1192	iexplore.exe	96
PID 1192 wrote to memory of 5012	1192	iexplore.exe	96
PID 1192 wrote to memory of 5012	1192	iexplore.exe	96
PID 1192 wrote to memory of 5012	1192	iexplore.exe	96
PID 1192 wrote to memory of 5012	1192	iexplore.exe	96
PID 1192 wrote to memory of 5012	1192	iexplore.exe	96
PID 1192 wrote to memory of 5012	1192	iexplore.exe	96
PID 1192 wrote to memory of 2440	1192	iexplore.exe	100
PID 1192 wrote to memory of 2440	1192	iexplore.exe	100
PID 1192 wrote to memory of 2440	1192	iexplore.exe	100
PID 1192 wrote to memory of 2440	1192	iexplore.exe	100
PID 1192 wrote to memory of 2440	1192	iexplore.exe	100
PID 1192 wrote to memory of 2440	1192	iexplore.exe	100
PID 1192 wrote to memory of 2440	1192	iexplore.exe	100
PID 1192 wrote to memory of 2440	1192	iexplore.exe	100
PID 1192 wrote to memory of 4120	1192	iexplore.exe	101
PID 1192 wrote to memory of 4120	1192	iexplore.exe	101
PID 1192 wrote to memory of 4120	1192	iexplore.exe	101
PID 1192 wrote to memory of 4120	1192	iexplore.exe	101
PID 1192 wrote to memory of 4120	1192	iexplore.exe	101
PID 1192 wrote to memory of 4120	1192	iexplore.exe	101
PID 1192 wrote to memory of 4120	1192	iexplore.exe	101

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"	SecuriteInfo.com.BackDoor.SpyBotNET.25.23558.exe

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.SpyBotNET.25.23558.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.SpyBotNET.25.23558.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4964
- C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.SpyBotNET.25.23558.exe
  "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.SpyBotNET.25.23558.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:3700
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.SpyBotNET.25.23558.exe
    3⤵
    - Adds policy Run key to start application
    - Adds Run key to start application
    - Suspicious use of SetThreadContext
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1192
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\Q4V8N5Y3-O0F7-P7T5-U113-K7R6L4T0H6H6\vzasvyfwf0.txt"
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4476
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\Q4V8N5Y3-O0F7-P7T5-U113-K7R6L4T0H6H6\vzasvyfwf1.txt"
      4⤵
      Accesses Microsoft Outlook accounts
      PID:2260
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\Q4V8N5Y3-O0F7-P7T5-U113-K7R6L4T0H6H6\vzasvyfwf2.txt"
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:3824
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\Q4V8N5Y3-O0F7-P7T5-U113-K7R6L4T0H6H6\vzasvyfwf3.txt"
      4⤵
      PID:5012
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 5012 -s 84
        5⤵
        Program crash
        
        PID:4600
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\Q4V8N5Y3-O0F7-P7T5-U113-K7R6L4T0H6H6\vzasvyfwf3.txt"
      4⤵
      PID:2440
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\Q4V8N5Y3-O0F7-P7T5-U113-K7R6L4T0H6H6\vzasvyfwf4.txt"
      4⤵
      PID:4120

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 200 -p 5012 -ip 5012
1⤵
PID:4468

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Bypass User Account Control

T1088

Defense Evasion

Bypass User Account Control

T1088

Disabling Security Tools

T1089

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

vzasvyfwf2.txt

Path C:\Users\Admin\AppData\Roaming\Q4V8N5Y3-O0F7-P7T5-U113-K7R6L4T0H6H6\vzasvyfwf2.txt
Size 3KB
SHA256 a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92
MD5 f94dc819ca773f1e3cb27abbc9e7fa27
SHA1 9a7700efadc5ea09ab288544ef1e3cd876255086
SHA512 72a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196
MD5 SHA1 SHA512

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vzasvyfwf4.txt

Path C:\Users\Admin\AppData\Roaming\Q4V8N5Y3-O0F7-P7T5-U113-K7R6L4T0H6H6\vzasvyfwf4.txt
Size 2B
SHA256 b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
MD5 f3b25701fe362ec84616a93a45ce9998
SHA1 d62636d8caec13f04e28442a0a6fa1afeb024bbb
SHA512 98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84
MD5 SHA1 SHA512

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memory/3700-141-0x0000000000400000-0x000000000042C000-memory.dmp

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memory/3700-143-0x0000000000400000-0x000000000042C000-memory.dmp

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memory/3700-146-0x0000000000400000-0x000000000042C000-memory.dmp

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memory/4964-134-0x0000000000230000-0x00000000002DE000-memory.dmp

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memory/4964-135-0x0000000005310000-0x00000000058B4000-memory.dmp

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memory/4964-136-0x0000000004C60000-0x0000000004CF2000-memory.dmp

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memory/4964-137-0x0000000004D10000-0x0000000004D1A000-memory.dmp

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memory/4964-138-0x0000000007450000-0x00000000074EC000-memory.dmp

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memory/4964-139-0x00000000077F0000-0x0000000007856000-memory.dmp

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