xtremerat | 50dcbd9d397eef6007d5597348418607f6dd7ce109d9d914dabf1b6cd2357bc9

General

Target

JaffaCakes118_09feab4a0935960df8eed2f2a5b83ad3.exe
Size

472KB
MD5

09feab4a0935960df8eed2f2a5b83ad3
SHA1

ebeaeafbca6d3daa6dcc36cb4acf22e441b7d48e
SHA256

50dcbd9d397eef6007d5597348418607f6dd7ce109d9d914dabf1b6cd2357bc9
SHA512

d00b0690c83e145e2349b8c5fbc03c14e3433859d3c4a4f1325d33666d82b0718a37fd3fbd516e043ccad9fc5bc411956984cfbb16aa717f891ae11195746ffc
SSDEEP

12288:LkAO3Q8lR4kLVtWLz3m0NmZ13TA5sfZjA+/id:wAsQYR4MrS3RNmZ1xfNm

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral1/memory/2404-13-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral1/memory/2404-12-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral1/memory/2108-21-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral1/memory/2580-25-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral1/memory/2580-27-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat

Modifies WinLogon for persistence 2 TTPs 4 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe C:\\Users\\Admin\\AppData\\Roaming\\InstallDir\\Server.exe"	JaffaCakes118_09feab4a0935960df8eed2f2a5b83ad3.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe C:\\Users\\Admin\\AppData\\Roaming\\InstallDir\\Server.exe"	JaffaCakes118_09feab4a0935960df8eed2f2a5b83ad3.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe C:\\Users\\Admin\\AppData\\Roaming\\InstallDir\\Server.exe"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe C:\\Users\\Admin\\AppData\\Roaming\\InstallDir\\Server.exe"	svchost.exe

XtremeRAT
The XtremeRAT was developed by xtremecoder and has been available since at least 2010, and written in Delphi.
persistence spyware rat xtremerat
Xtremerat family
xtremerat

Adds policy Run key to start application 2 TTPs 8 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Server = "C:\\Users\\Admin\\AppData\\Roaming\\InstallDir\\Server.exe"	svchost.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	JaffaCakes118_09feab4a0935960df8eed2f2a5b83ad3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Server = "C:\\Users\\Admin\\AppData\\Roaming\\InstallDir\\Server.exe"	JaffaCakes118_09feab4a0935960df8eed2f2a5b83ad3.exe
Key created	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	JaffaCakes118_09feab4a0935960df8eed2f2a5b83ad3.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Server = "C:\\Users\\Admin\\AppData\\Roaming\\InstallDir\\Server.exe"	JaffaCakes118_09feab4a0935960df8eed2f2a5b83ad3.exe
Key created	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Server = "C:\\Users\\Admin\\AppData\\Roaming\\InstallDir\\Server.exe"	svchost.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	svchost.exe

Boot or Logon Autostart Execution: Active Setup 2 TTPs 4 IoCs

Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

persistence

Active Setup

T1547.014

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{UOB5A1J1-3U54-LY2Y-58R7-C10F75AL0470}	JaffaCakes118_09feab4a0935960df8eed2f2a5b83ad3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{UOB5A1J1-3U54-LY2Y-58R7-C10F75AL0470}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\InstallDir\\Server.exe restart"	JaffaCakes118_09feab4a0935960df8eed2f2a5b83ad3.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{UOB5A1J1-3U54-LY2Y-58R7-C10F75AL0470}	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{UOB5A1J1-3U54-LY2Y-58R7-C10F75AL0470}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\InstallDir\\Server.exe restart"	svchost.exe

Adds Run key to start application 2 TTPs 8 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Users\\Admin\\AppData\\Roaming\\InstallDir\\Server.exe"	JaffaCakes118_09feab4a0935960df8eed2f2a5b83ad3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Server = "C:\\Users\\Admin\\AppData\\Roaming\\InstallDir\\Server.exe"	JaffaCakes118_09feab4a0935960df8eed2f2a5b83ad3.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Server = "C:\\Users\\Admin\\AppData\\Roaming\\InstallDir\\Server.exe"	JaffaCakes118_09feab4a0935960df8eed2f2a5b83ad3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Users\\Admin\\AppData\\Roaming\\InstallDir\\Server.exe"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Users\\Admin\\AppData\\Roaming\\InstallDir\\Server.exe"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Server = "C:\\Users\\Admin\\AppData\\Roaming\\InstallDir\\Server.exe"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Server = "C:\\Users\\Admin\\AppData\\Roaming\\InstallDir\\Server.exe"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Users\\Admin\\AppData\\Roaming\\InstallDir\\Server.exe"	JaffaCakes118_09feab4a0935960df8eed2f2a5b83ad3.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2112 set thread context of 2404	2112	JaffaCakes118_09feab4a0935960df8eed2f2a5b83ad3.exe	30

UPX packed file 9 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2404-6-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/2404-4-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/2404-2-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/2404-11-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/2404-13-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/2404-12-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/2108-21-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/2580-25-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/2580-27-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 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	JaffaCakes118_09feab4a0935960df8eed2f2a5b83ad3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_09feab4a0935960df8eed2f2a5b83ad3.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2580	svchost.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2112 wrote to memory of 2404	2112	JaffaCakes118_09feab4a0935960df8eed2f2a5b83ad3.exe	30
PID 2112 wrote to memory of 2404	2112	JaffaCakes118_09feab4a0935960df8eed2f2a5b83ad3.exe	30
PID 2112 wrote to memory of 2404	2112	JaffaCakes118_09feab4a0935960df8eed2f2a5b83ad3.exe	30
PID 2112 wrote to memory of 2404	2112	JaffaCakes118_09feab4a0935960df8eed2f2a5b83ad3.exe	30
PID 2112 wrote to memory of 2404	2112	JaffaCakes118_09feab4a0935960df8eed2f2a5b83ad3.exe	30
PID 2112 wrote to memory of 2404	2112	JaffaCakes118_09feab4a0935960df8eed2f2a5b83ad3.exe	30
PID 2112 wrote to memory of 2404	2112	JaffaCakes118_09feab4a0935960df8eed2f2a5b83ad3.exe	30
PID 2112 wrote to memory of 2404	2112	JaffaCakes118_09feab4a0935960df8eed2f2a5b83ad3.exe	30
PID 2404 wrote to memory of 2108	2404	JaffaCakes118_09feab4a0935960df8eed2f2a5b83ad3.exe	31
PID 2404 wrote to memory of 2108	2404	JaffaCakes118_09feab4a0935960df8eed2f2a5b83ad3.exe	31
PID 2404 wrote to memory of 2108	2404	JaffaCakes118_09feab4a0935960df8eed2f2a5b83ad3.exe	31
PID 2404 wrote to memory of 2108	2404	JaffaCakes118_09feab4a0935960df8eed2f2a5b83ad3.exe	31
PID 2404 wrote to memory of 2108	2404	JaffaCakes118_09feab4a0935960df8eed2f2a5b83ad3.exe	31
PID 2404 wrote to memory of 2580	2404	JaffaCakes118_09feab4a0935960df8eed2f2a5b83ad3.exe	32
PID 2404 wrote to memory of 2580	2404	JaffaCakes118_09feab4a0935960df8eed2f2a5b83ad3.exe	32
PID 2404 wrote to memory of 2580	2404	JaffaCakes118_09feab4a0935960df8eed2f2a5b83ad3.exe	32
PID 2404 wrote to memory of 2580	2404	JaffaCakes118_09feab4a0935960df8eed2f2a5b83ad3.exe	32
PID 2404 wrote to memory of 2580	2404	JaffaCakes118_09feab4a0935960df8eed2f2a5b83ad3.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_09feab4a0935960df8eed2f2a5b83ad3.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_09feab4a0935960df8eed2f2a5b83ad3.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2112
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_09feab4a0935960df8eed2f2a5b83ad3.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_09feab4a0935960df8eed2f2a5b83ad3.exe
  2⤵
  - Modifies WinLogon for persistence
  - Adds policy Run key to start application
  - Boot or Logon Autostart Execution: Active Setup
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2404
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - Modifies WinLogon for persistence
    - Adds policy Run key to start application
    - Boot or Logon Autostart Execution: Active Setup
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    PID:2108
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:2580

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

4

T1547

Active Setup

1

T1547.014

Registry Run Keys / Startup Folder

2

T1547.001

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

4

T1547

Active Setup

1

T1547.014

Registry Run Keys / Startup Folder

2

T1547.001

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Modify Registry

4

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\InstallDir\Server.exe

Filesize
472KB

MD5
09feab4a0935960df8eed2f2a5b83ad3

SHA1
ebeaeafbca6d3daa6dcc36cb4acf22e441b7d48e

SHA256
50dcbd9d397eef6007d5597348418607f6dd7ce109d9d914dabf1b6cd2357bc9

SHA512
d00b0690c83e145e2349b8c5fbc03c14e3433859d3c4a4f1325d33666d82b0718a37fd3fbd516e043ccad9fc5bc411956984cfbb16aa717f891ae11195746ffc

Download Submit
memory/2108-21-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2112-0-0x00000000003A0000-0x00000000003A1000-memory.dmp

Filesize
4KB

Download
memory/2112-10-0x0000000000010000-0x0000000000085000-memory.dmp

Filesize
468KB

Download
memory/2404-2-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2404-4-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2404-6-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2404-11-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2404-13-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2404-12-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2404-7-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2404-1-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2580-25-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2580-27-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads