xpertrat | 0a35b0e0112fc3ffb7fb29e2f7afa092ae3b5932ff8e79c7a9b5365ad5e08013

Analysis

max time kernel
208s
max time network
206s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
12/05/2022, 23:48

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General

Target
SecuriteInfo.com.Variant.Ser.Lazy.948.25861.exe
Size 512KB
Sample220512-3tenbseabq
SHA256 0a35b0e0112fc3ffb7fb29e2f7afa092ae3b5932ff8e79c7a9b5365ad5e08013
MD5 bfa6a35755791e6046c304ac582770c7
SHA1 6f921e0412bc2506ef0c1b65f0f086da4a161ca5
SHA512 fd7271fc40f5c1f25e8c30e05612042c2b200ac1635b079477d1b3cb3dd0a4c3270f425307933cce0b591ab2752a7d6450d15663ea62b3b8da991149ee7c8c75
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\H7M3F0W6-F4D2-O1S0-S0D7-Q1N2H5T660I4 = "C:\\Users\\Admin\\AppData\\Roaming\\H7M3F0W6-F4D2-O1S0-S0D7-Q1N2H5T660I4\\H7M3F0W6-F4D2-O1S0-S0D7-Q1N2H5T660I4.exe"	iexplore.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	SecuriteInfo.com.Variant.Ser.Lazy.948.25861.exe

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\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-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\H7M3F0W6-F4D2-O1S0-S0D7-Q1N2H5T660I4 = "C:\\Users\\Admin\\AppData\\Roaming\\H7M3F0W6-F4D2-O1S0-S0D7-Q1N2H5T660I4\\H7M3F0W6-F4D2-O1S0-S0D7-Q1N2H5T660I4.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\H7M3F0W6-F4D2-O1S0-S0D7-Q1N2H5T660I4 = "C:\\Users\\Admin\\AppData\\Roaming\\H7M3F0W6-F4D2-O1S0-S0D7-Q1N2H5T660I4\\H7M3F0W6-F4D2-O1S0-S0D7-Q1N2H5T660I4.exe"	iexplore.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4608	4136	WerFault.exe	103
1068	4304	WerFault.exe	109

Suspicious use of SetThreadContext 9 IoCs

description	pid	Process	procid_target
PID 636 set thread context of 4176	636	SecuriteInfo.com.Variant.Ser.Lazy.948.25861.exe	94
PID 4176 set thread context of 2328	4176	MSBuild.exe	95
PID 2328 set thread context of 5032	2328	iexplore.exe	97
PID 2328 set thread context of 1352	2328	iexplore.exe	98
PID 2328 set thread context of 3368	2328	iexplore.exe	100
PID 2328 set thread context of 4136	2328	iexplore.exe	103
PID 2328 set thread context of 768	2328	iexplore.exe	108
PID 2328 set thread context of 4304	2328	iexplore.exe	109
PID 2328 set thread context of 1636	2328	iexplore.exe	113

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 10 IoCs

pid	Process
4176	MSBuild.exe
4176	MSBuild.exe
4748	powershell.exe
4748	powershell.exe
4176	MSBuild.exe
4176	MSBuild.exe
5032	iexplore.exe
5032	iexplore.exe
3368	iexplore.exe
3368	iexplore.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4748	powershell.exe
Token: SeDebugPrivilege	2328	iexplore.exe
Token: SeDebugPrivilege	5032	iexplore.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4176	MSBuild.exe
2328	iexplore.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 636 wrote to memory of 4748	636	SecuriteInfo.com.Variant.Ser.Lazy.948.25861.exe	92
PID 636 wrote to memory of 4748	636	SecuriteInfo.com.Variant.Ser.Lazy.948.25861.exe	92
PID 636 wrote to memory of 4748	636	SecuriteInfo.com.Variant.Ser.Lazy.948.25861.exe	92
PID 636 wrote to memory of 4176	636	SecuriteInfo.com.Variant.Ser.Lazy.948.25861.exe	94
PID 636 wrote to memory of 4176	636	SecuriteInfo.com.Variant.Ser.Lazy.948.25861.exe	94
PID 636 wrote to memory of 4176	636	SecuriteInfo.com.Variant.Ser.Lazy.948.25861.exe	94
PID 636 wrote to memory of 4176	636	SecuriteInfo.com.Variant.Ser.Lazy.948.25861.exe	94
PID 636 wrote to memory of 4176	636	SecuriteInfo.com.Variant.Ser.Lazy.948.25861.exe	94
PID 636 wrote to memory of 4176	636	SecuriteInfo.com.Variant.Ser.Lazy.948.25861.exe	94
PID 636 wrote to memory of 4176	636	SecuriteInfo.com.Variant.Ser.Lazy.948.25861.exe	94
PID 4176 wrote to memory of 2328	4176	MSBuild.exe	95
PID 4176 wrote to memory of 2328	4176	MSBuild.exe	95
PID 4176 wrote to memory of 2328	4176	MSBuild.exe	95
PID 4176 wrote to memory of 2328	4176	MSBuild.exe	95
PID 4176 wrote to memory of 2328	4176	MSBuild.exe	95
PID 4176 wrote to memory of 2328	4176	MSBuild.exe	95
PID 4176 wrote to memory of 2328	4176	MSBuild.exe	95
PID 4176 wrote to memory of 2328	4176	MSBuild.exe	95
PID 2328 wrote to memory of 4128	2328	iexplore.exe	96
PID 2328 wrote to memory of 4128	2328	iexplore.exe	96
PID 2328 wrote to memory of 4128	2328	iexplore.exe	96
PID 2328 wrote to memory of 4128	2328	iexplore.exe	96
PID 2328 wrote to memory of 5032	2328	iexplore.exe	97
PID 2328 wrote to memory of 5032	2328	iexplore.exe	97
PID 2328 wrote to memory of 5032	2328	iexplore.exe	97
PID 2328 wrote to memory of 5032	2328	iexplore.exe	97
PID 2328 wrote to memory of 5032	2328	iexplore.exe	97
PID 2328 wrote to memory of 5032	2328	iexplore.exe	97
PID 2328 wrote to memory of 5032	2328	iexplore.exe	97
PID 2328 wrote to memory of 5032	2328	iexplore.exe	97
PID 2328 wrote to memory of 1352	2328	iexplore.exe	98
PID 2328 wrote to memory of 1352	2328	iexplore.exe	98
PID 2328 wrote to memory of 1352	2328	iexplore.exe	98
PID 2328 wrote to memory of 1352	2328	iexplore.exe	98
PID 2328 wrote to memory of 1352	2328	iexplore.exe	98
PID 2328 wrote to memory of 1352	2328	iexplore.exe	98
PID 2328 wrote to memory of 1352	2328	iexplore.exe	98
PID 2328 wrote to memory of 1352	2328	iexplore.exe	98
PID 2328 wrote to memory of 1352	2328	iexplore.exe	98
PID 2328 wrote to memory of 3368	2328	iexplore.exe	100
PID 2328 wrote to memory of 3368	2328	iexplore.exe	100
PID 2328 wrote to memory of 3368	2328	iexplore.exe	100
PID 2328 wrote to memory of 3368	2328	iexplore.exe	100
PID 2328 wrote to memory of 3368	2328	iexplore.exe	100
PID 2328 wrote to memory of 3368	2328	iexplore.exe	100
PID 2328 wrote to memory of 3368	2328	iexplore.exe	100
PID 2328 wrote to memory of 3368	2328	iexplore.exe	100
PID 2328 wrote to memory of 3368	2328	iexplore.exe	100
PID 2328 wrote to memory of 4136	2328	iexplore.exe	103
PID 2328 wrote to memory of 4136	2328	iexplore.exe	103
PID 2328 wrote to memory of 4136	2328	iexplore.exe	103
PID 2328 wrote to memory of 4136	2328	iexplore.exe	103
PID 2328 wrote to memory of 4136	2328	iexplore.exe	103
PID 2328 wrote to memory of 4136	2328	iexplore.exe	103
PID 2328 wrote to memory of 4136	2328	iexplore.exe	103
PID 2328 wrote to memory of 4136	2328	iexplore.exe	103
PID 2328 wrote to memory of 768	2328	iexplore.exe	108
PID 2328 wrote to memory of 768	2328	iexplore.exe	108
PID 2328 wrote to memory of 768	2328	iexplore.exe	108
PID 2328 wrote to memory of 768	2328	iexplore.exe	108
PID 2328 wrote to memory of 768	2328	iexplore.exe	108
PID 2328 wrote to memory of 768	2328	iexplore.exe	108
PID 2328 wrote to memory of 768	2328	iexplore.exe	108
PID 2328 wrote to memory of 768	2328	iexplore.exe	108

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Ser.Lazy.948.25861.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Ser.Lazy.948.25861.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:636
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Ser.Lazy.948.25861.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4748
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4176
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.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:2328
  - - C:\Windows\SysWOW64\notepad.exe
      notepad.exe
      4⤵
      PID:4128
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\H7M3F0W6-F4D2-O1S0-S0D7-Q1N2H5T660I4\azgetzrak0.txt"
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:5032
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\H7M3F0W6-F4D2-O1S0-S0D7-Q1N2H5T660I4\azgetzrak1.txt"
      4⤵
      Accesses Microsoft Outlook accounts
      PID:1352
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\H7M3F0W6-F4D2-O1S0-S0D7-Q1N2H5T660I4\azgetzrak2.txt"
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:3368
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\H7M3F0W6-F4D2-O1S0-S0D7-Q1N2H5T660I4\azgetzrak3.txt"
      4⤵
      PID:4136
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4136 -s 84
        5⤵
        Program crash
        
        PID:4608
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\H7M3F0W6-F4D2-O1S0-S0D7-Q1N2H5T660I4\azgetzrak3.txt"
      4⤵
      PID:768
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\H7M3F0W6-F4D2-O1S0-S0D7-Q1N2H5T660I4\azgetzrak4.txt"
      4⤵
      PID:4304
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4304 -s 84
        5⤵
        Program crash
        
        PID:1068
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\H7M3F0W6-F4D2-O1S0-S0D7-Q1N2H5T660I4\azgetzrak4.txt"
      4⤵
      PID:1636

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4136 -ip 4136
1⤵
PID:3568

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4304 -ip 4304
1⤵
PID:4312

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

azgetzrak2.txt

Path C:\Users\Admin\AppData\Roaming\H7M3F0W6-F4D2-O1S0-S0D7-Q1N2H5T660I4\azgetzrak2.txt
Size 3KB
SHA256 a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92
MD5 f94dc819ca773f1e3cb27abbc9e7fa27
SHA1 9a7700efadc5ea09ab288544ef1e3cd876255086
SHA512 72a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196
MD5 SHA1 SHA512

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memory/636-131-0x00000000054A0000-0x0000000005A44000-memory.dmp

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memory/636-132-0x0000000004F90000-0x0000000005022000-memory.dmp

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memory/636-133-0x0000000005030000-0x00000000050CC000-memory.dmp

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memory/636-134-0x00000000051D0000-0x00000000051DA000-memory.dmp

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memory/636-135-0x0000000007380000-0x00000000073E6000-memory.dmp

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memory/636-130-0x00000000004E0000-0x0000000000566000-memory.dmp

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memory/4176-138-0x0000000000400000-0x000000000042C000-memory.dmp

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memory/4176-141-0x0000000000400000-0x000000000042C000-memory.dmp

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memory/4176-148-0x0000000000400000-0x000000000042C000-memory.dmp

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memory/4748-150-0x0000000006D10000-0x0000000006D42000-memory.dmp

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memory/4748-152-0x0000000006100000-0x000000000611E000-memory.dmp

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memory/4748-145-0x0000000004A90000-0x0000000004AB2000-memory.dmp

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memory/4748-144-0x0000000004E10000-0x0000000005438000-memory.dmp

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memory/4748-149-0x0000000005B50000-0x0000000005B6E000-memory.dmp

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memory/4748-140-0x0000000000C50000-0x0000000000C86000-memory.dmp

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memory/4748-151-0x0000000070A60000-0x0000000070AAC000-memory.dmp

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memory/4748-146-0x0000000004C30000-0x0000000004C96000-memory.dmp

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memory/4748-153-0x00000000074A0000-0x0000000007B1A000-memory.dmp

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memory/4748-154-0x0000000006E50000-0x0000000006E6A000-memory.dmp

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memory/4748-155-0x0000000006EC0000-0x0000000006ECA000-memory.dmp

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memory/4748-156-0x00000000070D0000-0x0000000007166000-memory.dmp

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memory/4748-157-0x0000000007090000-0x000000000709E000-memory.dmp

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memory/4748-158-0x00000000071A0000-0x00000000071BA000-memory.dmp

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memory/4748-160-0x0000000007180000-0x0000000007188000-memory.dmp

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