xtremerat | 4de655fedd87668e4c5a37a39e6b8049b87bf7c4638b6b38c12442441594b7b1

General

Target

4de655fedd87668e4c5a37a39e6b8049b87bf7c4638b6b38c12442441594b7b1N.exe
Size

64KB
MD5

7ab6bd1aa0a16495aa08198437c3ff30
SHA1

2b225d1e33ee0ce95dce372d8d03a9bc219bd205
SHA256

4de655fedd87668e4c5a37a39e6b8049b87bf7c4638b6b38c12442441594b7b1
SHA512

1d8d2639abad26ffc019750cb993ff20a625f4dc723383bf3dcc87db6a0b5dd98adf67e2317ef474152096d0a1df7d0b21af4039185705c335ac3568e0673a4b
SSDEEP

1536:U8+D7t0E0RGnl9T039GLI1niVGRwghzpa:UfD770wnl9Yr1nthhz

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral1/memory/2668-9-0x0000000000C80000-0x0000000000C9C000-memory.dmp	family_xtremerat
behavioral1/memory/2668-8-0x0000000000C80000-0x0000000000C9C000-memory.dmp	family_xtremerat
behavioral1/memory/2764-15-0x0000000000C80000-0x0000000000C9C000-memory.dmp	family_xtremerat
behavioral1/memory/2668-16-0x0000000000C80000-0x0000000000C9C000-memory.dmp	family_xtremerat
behavioral1/memory/2764-18-0x0000000000C80000-0x0000000000C9C000-memory.dmp	family_xtremerat

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

Boot or Logon Autostart Execution: Active Setup 2 TTPs 2 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\{5460C4DF-B266-909E-CB58-E32B79832EB2}	4de655fedd87668e4c5a37a39e6b8049b87bf7c4638b6b38c12442441594b7b1N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}\StubPath = "C:\\Windows\\InstallDir\\Server.exe restart"	4de655fedd87668e4c5a37a39e6b8049b87bf7c4638b6b38c12442441594b7b1N.exe

Adds Run key to start application 2 TTPs 2 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:\\Windows\\InstallDir\\Server.exe"	4de655fedd87668e4c5a37a39e6b8049b87bf7c4638b6b38c12442441594b7b1N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe"	4de655fedd87668e4c5a37a39e6b8049b87bf7c4638b6b38c12442441594b7b1N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1600 set thread context of 2668	1600	4de655fedd87668e4c5a37a39e6b8049b87bf7c4638b6b38c12442441594b7b1N.exe	30

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2668-5-0x0000000000C80000-0x0000000000C9C000-memory.dmp	upx
behavioral1/memory/2668-2-0x0000000000C80000-0x0000000000C9C000-memory.dmp	upx
behavioral1/memory/2668-9-0x0000000000C80000-0x0000000000C9C000-memory.dmp	upx
behavioral1/memory/2668-1-0x0000000000C80000-0x0000000000C9C000-memory.dmp	upx
behavioral1/memory/2668-8-0x0000000000C80000-0x0000000000C9C000-memory.dmp	upx
behavioral1/memory/2668-7-0x0000000000C80000-0x0000000000C9C000-memory.dmp	upx
behavioral1/memory/2764-15-0x0000000000C80000-0x0000000000C9C000-memory.dmp	upx
behavioral1/memory/2668-16-0x0000000000C80000-0x0000000000C9C000-memory.dmp	upx
behavioral1/memory/2764-18-0x0000000000C80000-0x0000000000C9C000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\InstallDir\Server.exe	4de655fedd87668e4c5a37a39e6b8049b87bf7c4638b6b38c12442441594b7b1N.exe
File opened for modification	C:\Windows\InstallDir\Server.exe	4de655fedd87668e4c5a37a39e6b8049b87bf7c4638b6b38c12442441594b7b1N.exe

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 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	4de655fedd87668e4c5a37a39e6b8049b87bf7c4638b6b38c12442441594b7b1N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4de655fedd87668e4c5a37a39e6b8049b87bf7c4638b6b38c12442441594b7b1N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2764	svchost.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1600 wrote to memory of 2668	1600	4de655fedd87668e4c5a37a39e6b8049b87bf7c4638b6b38c12442441594b7b1N.exe	30
PID 1600 wrote to memory of 2668	1600	4de655fedd87668e4c5a37a39e6b8049b87bf7c4638b6b38c12442441594b7b1N.exe	30
PID 1600 wrote to memory of 2668	1600	4de655fedd87668e4c5a37a39e6b8049b87bf7c4638b6b38c12442441594b7b1N.exe	30
PID 1600 wrote to memory of 2668	1600	4de655fedd87668e4c5a37a39e6b8049b87bf7c4638b6b38c12442441594b7b1N.exe	30
PID 1600 wrote to memory of 2668	1600	4de655fedd87668e4c5a37a39e6b8049b87bf7c4638b6b38c12442441594b7b1N.exe	30
PID 1600 wrote to memory of 2668	1600	4de655fedd87668e4c5a37a39e6b8049b87bf7c4638b6b38c12442441594b7b1N.exe	30
PID 1600 wrote to memory of 2668	1600	4de655fedd87668e4c5a37a39e6b8049b87bf7c4638b6b38c12442441594b7b1N.exe	30
PID 1600 wrote to memory of 2668	1600	4de655fedd87668e4c5a37a39e6b8049b87bf7c4638b6b38c12442441594b7b1N.exe	30
PID 2668 wrote to memory of 2764	2668	4de655fedd87668e4c5a37a39e6b8049b87bf7c4638b6b38c12442441594b7b1N.exe	31
PID 2668 wrote to memory of 2764	2668	4de655fedd87668e4c5a37a39e6b8049b87bf7c4638b6b38c12442441594b7b1N.exe	31
PID 2668 wrote to memory of 2764	2668	4de655fedd87668e4c5a37a39e6b8049b87bf7c4638b6b38c12442441594b7b1N.exe	31
PID 2668 wrote to memory of 2764	2668	4de655fedd87668e4c5a37a39e6b8049b87bf7c4638b6b38c12442441594b7b1N.exe	31
PID 2668 wrote to memory of 2764	2668	4de655fedd87668e4c5a37a39e6b8049b87bf7c4638b6b38c12442441594b7b1N.exe	31

C:\Users\Admin\AppData\Local\Temp\4de655fedd87668e4c5a37a39e6b8049b87bf7c4638b6b38c12442441594b7b1N.exe
"C:\Users\Admin\AppData\Local\Temp\4de655fedd87668e4c5a37a39e6b8049b87bf7c4638b6b38c12442441594b7b1N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1600
- C:\Users\Admin\AppData\Local\Temp\4de655fedd87668e4c5a37a39e6b8049b87bf7c4638b6b38c12442441594b7b1N.exe
  "C:\Users\Admin\AppData\Local\Temp\4de655fedd87668e4c5a37a39e6b8049b87bf7c4638b6b38c12442441594b7b1N.exe"
  2⤵
  - Boot or Logon Autostart Execution: Active Setup
  - Adds Run key to start application
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2668
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:2764

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Active Setup

1

T1547.014

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Active Setup

1

T1547.014

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

2

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2668-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2668-0-0x0000000000C80000-0x0000000000C9C000-memory.dmp

Filesize
112KB

Download
memory/2668-5-0x0000000000C80000-0x0000000000C9C000-memory.dmp

Filesize
112KB

Download
memory/2668-2-0x0000000000C80000-0x0000000000C9C000-memory.dmp

Filesize
112KB

Download
memory/2668-9-0x0000000000C80000-0x0000000000C9C000-memory.dmp

Filesize
112KB

Download
memory/2668-1-0x0000000000C80000-0x0000000000C9C000-memory.dmp

Filesize
112KB

Download
memory/2668-8-0x0000000000C80000-0x0000000000C9C000-memory.dmp

Filesize
112KB

Download
memory/2668-7-0x0000000000C80000-0x0000000000C9C000-memory.dmp

Filesize
112KB

Download
memory/2668-16-0x0000000000C80000-0x0000000000C9C000-memory.dmp

Filesize
112KB

Download
memory/2764-15-0x0000000000C80000-0x0000000000C9C000-memory.dmp

Filesize
112KB

Download
memory/2764-18-0x0000000000C80000-0x0000000000C9C000-memory.dmp

Filesize
112KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads