xtremerat | cf02bd4d854f02e43d3aa9ca48eb6c0e8f0602a9401f36be0007b7f0337a0c88

General

Target

3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe
Size

108KB
MD5

3be3a5ecc5085d8b7c8f0e7e978574cc
SHA1

92c9b7d4bb2b4310761b992385a90c5b21226339
SHA256

cf02bd4d854f02e43d3aa9ca48eb6c0e8f0602a9401f36be0007b7f0337a0c88
SHA512

a3a4bf1eef86e7b12bde063340052bf939cfae07a22d87ffb172334697c8212d6862efa7cc0656bda35913407250295cc95290d41e459684f439d5d6399f8105
SSDEEP

1536:dTWkx6kuL3cCDzAGqimFNLKMzRUsyDHMDSFgR75e6M1+nZtx2SVWoRTk:dSkx6XM0rqiYAF/sDSFgR1el1QtxMkT

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

schalfer.no-ip.org

er7.mooo.com

r7.mooo.com

Signatures

Detect XtremeRAT payload 4 IoCs

resource	yara_rule
behavioral1/memory/2408-8-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral1/memory/2836-18-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral1/memory/2832-22-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral1/memory/2832-24-0x0000000000C80000-0x0000000000C96000-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\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe C:\\Users\\Admin\\AppData\\Roaming\\eleven\\Xtrust.exe"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe C:\\Users\\Admin\\AppData\\Roaming\\eleven\\Xtrust.exe"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe C:\\Users\\Admin\\AppData\\Roaming\\eleven\\Xtrust.exe"	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe C:\\Users\\Admin\\AppData\\Roaming\\eleven\\Xtrust.exe"	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe

XtremeRAT
The XtremeRAT was developed by xtremecoder and has been available since at least 2010, and written in Delphi.
persistence spyware rat 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\Rklb32 = "C:\\Users\\Admin\\AppData\\Roaming\\eleven\\Xtrust.exe"	svchost.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Rklb32 = "C:\\Users\\Admin\\AppData\\Roaming\\eleven\\Xtrust.exe"	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe
Key created	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Rklb32 = "C:\\Users\\Admin\\AppData\\Roaming\\eleven\\Xtrust.exe"	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe
Key created	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Rklb32 = "C:\\Users\\Admin\\AppData\\Roaming\\eleven\\Xtrust.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\{6YLEV0B0-P2RC-4O38-076N-8IWP31VXTTYW}	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{6YLEV0B0-P2RC-4O38-076N-8IWP31VXTTYW}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\eleven\\Xtrust.exe restart"	svchost.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{6YLEV0B0-P2RC-4O38-076N-8IWP31VXTTYW}	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{6YLEV0B0-P2RC-4O38-076N-8IWP31VXTTYW}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\eleven\\Xtrust.exe restart"	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.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\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Users\\Admin\\AppData\\Roaming\\eleven\\Xtrust.exe"	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Users\\Admin\\AppData\\Roaming\\eleven\\Xtrust.exe"	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Rklb32 = "C:\\Users\\Admin\\AppData\\Roaming\\eleven\\Xtrust.exe"	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Rklb32 = "C:\\Users\\Admin\\AppData\\Roaming\\eleven\\Xtrust.exe"	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Users\\Admin\\AppData\\Roaming\\eleven\\Xtrust.exe"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Users\\Admin\\AppData\\Roaming\\eleven\\Xtrust.exe"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Rklb32 = "C:\\Users\\Admin\\AppData\\Roaming\\eleven\\Xtrust.exe"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Rklb32 = "C:\\Users\\Admin\\AppData\\Roaming\\eleven\\Xtrust.exe"	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1700 set thread context of 2408	1700	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe	28

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2408-4-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/2408-7-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/2408-8-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/2836-18-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/2832-22-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/2832-24-0x0000000000C80000-0x0000000000C96000-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	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1700	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe
2832	explorer.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1700 wrote to memory of 2408	1700	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe	28
PID 1700 wrote to memory of 2408	1700	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe	28
PID 1700 wrote to memory of 2408	1700	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe	28
PID 1700 wrote to memory of 2408	1700	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe	28
PID 1700 wrote to memory of 2408	1700	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe	28
PID 1700 wrote to memory of 2408	1700	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe	28
PID 1700 wrote to memory of 2408	1700	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe	28
PID 1700 wrote to memory of 2408	1700	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe	28
PID 1700 wrote to memory of 2408	1700	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe	28
PID 2408 wrote to memory of 2836	2408	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe	29
PID 2408 wrote to memory of 2836	2408	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe	29
PID 2408 wrote to memory of 2836	2408	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe	29
PID 2408 wrote to memory of 2836	2408	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe	29
PID 2408 wrote to memory of 2836	2408	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe	29
PID 2408 wrote to memory of 2892	2408	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe	30
PID 2408 wrote to memory of 2892	2408	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe	30
PID 2408 wrote to memory of 2892	2408	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe	30
PID 2408 wrote to memory of 2892	2408	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe	30
PID 2408 wrote to memory of 2832	2408	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe	31
PID 2408 wrote to memory of 2832	2408	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe	31
PID 2408 wrote to memory of 2832	2408	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe	31
PID 2408 wrote to memory of 2832	2408	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe	31
PID 2408 wrote to memory of 2832	2408	3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1700
- C:\Users\Admin\AppData\Local\Temp\3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\3be3a5ecc5085d8b7c8f0e7e978574cc_JaffaCakes118.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:2408
- - 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:2836
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    PID:2892
- - C:\Windows\SysWOW64\explorer.exe
    explorer.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:2832

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\eleven\Xtrust.exe

Filesize
108KB

MD5
3be3a5ecc5085d8b7c8f0e7e978574cc

SHA1
92c9b7d4bb2b4310761b992385a90c5b21226339

SHA256
cf02bd4d854f02e43d3aa9ca48eb6c0e8f0602a9401f36be0007b7f0337a0c88

SHA512
a3a4bf1eef86e7b12bde063340052bf939cfae07a22d87ffb172334697c8212d6862efa7cc0656bda35913407250295cc95290d41e459684f439d5d6399f8105

Download Submit
memory/1700-2-0x0000000000417000-0x0000000000418000-memory.dmp

Filesize
4KB

Download
memory/1700-3-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/1700-5-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2408-4-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2408-9-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2408-7-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2408-8-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2832-22-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2832-24-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2836-18-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2836-16-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads