xenorat | f5f70713548d8a397fd0ecbba97df9d494687e0cd76da215698b209c4217e144

General

Target

f5f70713548d8a397fd0ecbba97df9d494687e0cd76da215698b209c4217e144.exe
Size

120KB
MD5

3ef51203bdf504ca54a0956fed3bdd3f
SHA1

1567cd51f39345c00ea529db2952bd2805d14d56
SHA256

f5f70713548d8a397fd0ecbba97df9d494687e0cd76da215698b209c4217e144
SHA512

1098a6b9905f15d5bdca647dacc8dc953c9d538b0847a04761f84aada5a14c14997aa5cddfd8b228f2f3b722562f94e6b4527526decfc96a34e9fe0b814b6f94
SSDEEP

3072:XnOsAdSDjd9ahEnYuDpejh9wPqn5BzBDuMLaO6:3PnDkLjhxDBDuMm

Score

10^/10

xenorat discovery execution persistence rat trojan

Malware Config

Extracted

Family

xenorat

C2

93.115.35.130

Mutex

asaojdoapsdj

Attributes

delay
5000
install_path
nothingset
port
2255
startup_name
nothingset

Signatures

Detect XenoRat Payload 6 IoCs

resource	yara_rule
behavioral1/memory/2768-23-0x0000000000400000-0x0000000000412000-memory.dmp	family_xenorat
behavioral1/memory/2768-21-0x0000000000400000-0x0000000000412000-memory.dmp	family_xenorat
behavioral1/memory/2768-19-0x0000000000400000-0x0000000000412000-memory.dmp	family_xenorat
behavioral1/memory/2768-15-0x0000000000400000-0x0000000000412000-memory.dmp	family_xenorat
behavioral1/memory/2768-13-0x0000000000400000-0x0000000000412000-memory.dmp	family_xenorat
behavioral1/memory/2880-25-0x00000000026F0000-0x0000000002730000-memory.dmp	family_xenorat

XenorRat
XenorRat is a remote access trojan written in C#.
trojan rat xenorat
Xenorat family
xenorat

.NET Reactor proctector 1 IoCs

Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

resource	yara_rule
behavioral1/memory/2496-1-0x0000000001050000-0x0000000001074000-memory.dmp	net_reactor

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\fetewq = "C:\\Users\\Admin\\AppData\\Roaming\\ftte\\trj.exe"	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2880	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2496 set thread context of 2768	2496	f5f70713548d8a397fd0ecbba97df9d494687e0cd76da215698b209c4217e144.exe	33

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f5f70713548d8a397fd0ecbba97df9d494687e0cd76da215698b209c4217e144.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2880	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2880	powershell.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2496 wrote to memory of 2880	2496	f5f70713548d8a397fd0ecbba97df9d494687e0cd76da215698b209c4217e144.exe	31
PID 2496 wrote to memory of 2880	2496	f5f70713548d8a397fd0ecbba97df9d494687e0cd76da215698b209c4217e144.exe	31
PID 2496 wrote to memory of 2880	2496	f5f70713548d8a397fd0ecbba97df9d494687e0cd76da215698b209c4217e144.exe	31
PID 2496 wrote to memory of 2880	2496	f5f70713548d8a397fd0ecbba97df9d494687e0cd76da215698b209c4217e144.exe	31
PID 2496 wrote to memory of 2768	2496	f5f70713548d8a397fd0ecbba97df9d494687e0cd76da215698b209c4217e144.exe	33
PID 2496 wrote to memory of 2768	2496	f5f70713548d8a397fd0ecbba97df9d494687e0cd76da215698b209c4217e144.exe	33
PID 2496 wrote to memory of 2768	2496	f5f70713548d8a397fd0ecbba97df9d494687e0cd76da215698b209c4217e144.exe	33
PID 2496 wrote to memory of 2768	2496	f5f70713548d8a397fd0ecbba97df9d494687e0cd76da215698b209c4217e144.exe	33
PID 2496 wrote to memory of 2768	2496	f5f70713548d8a397fd0ecbba97df9d494687e0cd76da215698b209c4217e144.exe	33
PID 2496 wrote to memory of 2768	2496	f5f70713548d8a397fd0ecbba97df9d494687e0cd76da215698b209c4217e144.exe	33
PID 2496 wrote to memory of 2768	2496	f5f70713548d8a397fd0ecbba97df9d494687e0cd76da215698b209c4217e144.exe	33
PID 2496 wrote to memory of 2768	2496	f5f70713548d8a397fd0ecbba97df9d494687e0cd76da215698b209c4217e144.exe	33
PID 2496 wrote to memory of 2768	2496	f5f70713548d8a397fd0ecbba97df9d494687e0cd76da215698b209c4217e144.exe	33
PID 2496 wrote to memory of 2768	2496	f5f70713548d8a397fd0ecbba97df9d494687e0cd76da215698b209c4217e144.exe	33
PID 2496 wrote to memory of 2768	2496	f5f70713548d8a397fd0ecbba97df9d494687e0cd76da215698b209c4217e144.exe	33
PID 2496 wrote to memory of 2768	2496	f5f70713548d8a397fd0ecbba97df9d494687e0cd76da215698b209c4217e144.exe	33

C:\Users\Admin\AppData\Local\Temp\f5f70713548d8a397fd0ecbba97df9d494687e0cd76da215698b209c4217e144.exe
"C:\Users\Admin\AppData\Local\Temp\f5f70713548d8a397fd0ecbba97df9d494687e0cd76da215698b209c4217e144.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2496
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Remove-ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name 'fetewq';New-ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name 'fetewq' -Value '"C:\Users\Admin\AppData\Roaming\ftte\trj.exe"' -PropertyType 'String'
  2⤵
  - Adds Run key to start application
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2880
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2768

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2496-0-0x00000000745EE000-0x00000000745EF000-memory.dmp

Filesize
4KB

Download
memory/2496-1-0x0000000001050000-0x0000000001074000-memory.dmp

Filesize
144KB

Download
memory/2496-2-0x00000000745E0000-0x0000000074CCE000-memory.dmp

Filesize
6.9MB

Download
memory/2496-3-0x00000000745E0000-0x0000000074CCE000-memory.dmp

Filesize
6.9MB

Download
memory/2496-4-0x00000000009F0000-0x0000000000A06000-memory.dmp

Filesize
88KB

Download
memory/2496-5-0x0000000000650000-0x0000000000664000-memory.dmp

Filesize
80KB

Download
memory/2496-24-0x00000000745E0000-0x0000000074CCE000-memory.dmp

Filesize
6.9MB

Download
memory/2768-19-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2768-21-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2768-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2768-15-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2768-13-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2768-11-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2768-9-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2768-23-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2880-25-0x00000000026F0000-0x0000000002730000-memory.dmp

Filesize
256KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads