xtremerat | c8a0c1715605c5ef4e499770b896e3249ed45fc93da615942350c292a2c4fb8b

General

Target

7950cad15d37d679765ae2ad609502f0471a5e530f9decd994da8b739c1254be.exe
Size

60KB
MD5

7e9f416689d0a361252b38b6fe132f39
SHA1

f45ab1375e5049bc17573f909991cfbd60e50cc9
SHA256

7950cad15d37d679765ae2ad609502f0471a5e530f9decd994da8b739c1254be
SHA512

658abdff07039af5c4f97c49a5692905393010cbc88d92aca5a79e8ea58b3f4cc9046c5ea832c24ac8904320459c6171a2f98b015676e7d8d92b3a27dbb9eb61
SSDEEP

1536:oIsF0q5yjJq8LkRNiUAm0KPD+AuRDiq4OZZZLlCZibw:otF0qAVLkRNiK0MaRDw8Nb

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 2 IoCs

resource	yara_rule
behavioral1/memory/2876-7-0x0000000000C80000-0x0000000000CA9000-memory.dmp	family_xtremerat
behavioral1/memory/4540-9-0x0000000000C80000-0x0000000000CA9000-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

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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{KFAV02IJ-24WO-43EH-C0M2-CEPCCV40X7XC}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\HostData\\update.exe restart"	svchost.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{KFAV02IJ-24WO-43EH-C0M2-CEPCCV40X7XC}	7950cad15d37d679765ae2ad609502f0471a5e530f9decd994da8b739c1254be.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{KFAV02IJ-24WO-43EH-C0M2-CEPCCV40X7XC}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\HostData\\update.exe restart"	7950cad15d37d679765ae2ad609502f0471a5e530f9decd994da8b739c1254be.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{KFAV02IJ-24WO-43EH-C0M2-CEPCCV40X7XC}	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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Users\\Admin\\AppData\\Roaming\\HostData\\update.exe"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Update = "C:\\Users\\Admin\\AppData\\Roaming\\HostData\\update.exe"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Update = "C:\\Users\\Admin\\AppData\\Roaming\\HostData\\update.exe"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Users\\Admin\\AppData\\Roaming\\HostData\\update.exe"	7950cad15d37d679765ae2ad609502f0471a5e530f9decd994da8b739c1254be.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Users\\Admin\\AppData\\Roaming\\HostData\\update.exe"	7950cad15d37d679765ae2ad609502f0471a5e530f9decd994da8b739c1254be.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Update = "C:\\Users\\Admin\\AppData\\Roaming\\HostData\\update.exe"	7950cad15d37d679765ae2ad609502f0471a5e530f9decd994da8b739c1254be.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Update = "C:\\Users\\Admin\\AppData\\Roaming\\HostData\\update.exe"	7950cad15d37d679765ae2ad609502f0471a5e530f9decd994da8b739c1254be.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Users\\Admin\\AppData\\Roaming\\HostData\\update.exe"	svchost.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/4540-0-0x0000000000C80000-0x0000000000CA9000-memory.dmp	upx
behavioral1/memory/2876-7-0x0000000000C80000-0x0000000000CA9000-memory.dmp	upx
behavioral1/files/0x000a000000023b6f-8.dat	upx
behavioral1/memory/4540-9-0x0000000000C80000-0x0000000000CA9000-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 2 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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7950cad15d37d679765ae2ad609502f0471a5e530f9decd994da8b739c1254be.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4540 wrote to memory of 2876	4540	7950cad15d37d679765ae2ad609502f0471a5e530f9decd994da8b739c1254be.exe	84
PID 4540 wrote to memory of 2876	4540	7950cad15d37d679765ae2ad609502f0471a5e530f9decd994da8b739c1254be.exe	84
PID 4540 wrote to memory of 2876	4540	7950cad15d37d679765ae2ad609502f0471a5e530f9decd994da8b739c1254be.exe	84
PID 4540 wrote to memory of 2876	4540	7950cad15d37d679765ae2ad609502f0471a5e530f9decd994da8b739c1254be.exe	84
PID 4540 wrote to memory of 4436	4540	7950cad15d37d679765ae2ad609502f0471a5e530f9decd994da8b739c1254be.exe	86
PID 4540 wrote to memory of 4436	4540	7950cad15d37d679765ae2ad609502f0471a5e530f9decd994da8b739c1254be.exe	86
PID 4540 wrote to memory of 4436	4540	7950cad15d37d679765ae2ad609502f0471a5e530f9decd994da8b739c1254be.exe	86

C:\Users\Admin\AppData\Local\Temp\7950cad15d37d679765ae2ad609502f0471a5e530f9decd994da8b739c1254be.exe
"C:\Users\Admin\AppData\Local\Temp\7950cad15d37d679765ae2ad609502f0471a5e530f9decd994da8b739c1254be.exe"
1⤵
- Boot or Logon Autostart Execution: Active Setup
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4540
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Boot or Logon Autostart Execution: Active Setup
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  PID:2876
- C:\Windows\SysWOW64\explorer.exe
  explorer.exe
  2⤵
  PID:4436

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

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Downloads

C:\Users\Admin\AppData\Roaming\HostData\update.exe

Filesize
60KB

MD5
7e9f416689d0a361252b38b6fe132f39

SHA1
f45ab1375e5049bc17573f909991cfbd60e50cc9

SHA256
7950cad15d37d679765ae2ad609502f0471a5e530f9decd994da8b739c1254be

SHA512
658abdff07039af5c4f97c49a5692905393010cbc88d92aca5a79e8ea58b3f4cc9046c5ea832c24ac8904320459c6171a2f98b015676e7d8d92b3a27dbb9eb61

Download Submit
memory/2876-7-0x0000000000C80000-0x0000000000CA9000-memory.dmp

Filesize
164KB

Download
memory/4540-0-0x0000000000C80000-0x0000000000CA9000-memory.dmp

Filesize
164KB

Download
memory/4540-9-0x0000000000C80000-0x0000000000CA9000-memory.dmp

Filesize
164KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads