xtremerat | 722f80f199f9fd3eb24bf3a37a2438168908daa11f87cbdee9bf565261d4e818

General

Target

JaffaCakes118_9a40c3b46d9accfe0159c8c68cf79044.exe
Size

83KB
MD5

9a40c3b46d9accfe0159c8c68cf79044
SHA1

55b9c6414e19b11b80c741950caf80b183e594f3
SHA256

722f80f199f9fd3eb24bf3a37a2438168908daa11f87cbdee9bf565261d4e818
SHA512

bb796455539402fda2ae620b23e88aba6ae0a5faa1c75b640f94dfd5ea2aabb08f576783cceb4e1df3aa39bef6544d141fb3f81dd86e501ec2d2c710f4a13dca
SSDEEP

1536:r+vAWgLURypOmZJ2xOLoZUq9F6xOPpf40jec:r+vAW3iJoV9F6i40jec

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 6 IoCs

resource	yara_rule
behavioral2/memory/620-5-0x0000000000C80000-0x0000000000C95000-memory.dmp	family_xtremerat
behavioral2/memory/2328-12-0x0000000000C80000-0x0000000000C95000-memory.dmp	family_xtremerat
behavioral2/memory/3616-15-0x0000000000C80000-0x0000000000C95000-memory.dmp	family_xtremerat
behavioral2/memory/2452-14-0x0000000000C80000-0x0000000000C95000-memory.dmp	family_xtremerat
behavioral2/memory/620-16-0x0000000000C80000-0x0000000000C95000-memory.dmp	family_xtremerat
behavioral2/memory/3616-19-0x0000000000C80000-0x0000000000C95000-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 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\{40F5COSF-R183-V0J4-614R-U880E44IP62C}\StubPath = "C:\\Windows\\teste\\Server.exe"	svchost.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{40F5COSF-R183-V0J4-614R-U880E44IP62C}	JaffaCakes118_9a40c3b46d9accfe0159c8c68cf79044.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{40F5COSF-R183-V0J4-614R-U880E44IP62C}\StubPath = "C:\\Windows\\teste\\Server.exe restart"	JaffaCakes118_9a40c3b46d9accfe0159c8c68cf79044.EXE
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{40F5COSF-R183-V0J4-614R-U880E44IP62C}	svchost.exe

Deletes itself 1 IoCs

pid	Process
2452	explorer.exe

Adds Run key to start application 2 TTPs 4 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\\teste\\Server.exe"	JaffaCakes118_9a40c3b46d9accfe0159c8c68cf79044.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-4003209913-3868522715-854928974-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\teste\\Server.exe"	JaffaCakes118_9a40c3b46d9accfe0159c8c68cf79044.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\teste\\Server.exe"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4003209913-3868522715-854928974-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\teste\\Server.exe"	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1844 set thread context of 620	1844	JaffaCakes118_9a40c3b46d9accfe0159c8c68cf79044.exe	84

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/620-2-0x0000000000C80000-0x0000000000C95000-memory.dmp	upx
behavioral2/memory/620-4-0x0000000000C80000-0x0000000000C95000-memory.dmp	upx
behavioral2/memory/620-6-0x0000000000C80000-0x0000000000C95000-memory.dmp	upx
behavioral2/memory/620-5-0x0000000000C80000-0x0000000000C95000-memory.dmp	upx
behavioral2/memory/2328-12-0x0000000000C80000-0x0000000000C95000-memory.dmp	upx
behavioral2/memory/3616-15-0x0000000000C80000-0x0000000000C95000-memory.dmp	upx
behavioral2/memory/2452-14-0x0000000000C80000-0x0000000000C95000-memory.dmp	upx
behavioral2/memory/620-16-0x0000000000C80000-0x0000000000C95000-memory.dmp	upx
behavioral2/memory/3616-19-0x0000000000C80000-0x0000000000C95000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\teste\Server.exe	JaffaCakes118_9a40c3b46d9accfe0159c8c68cf79044.EXE
File created	C:\Windows\teste\Server.exe	JaffaCakes118_9a40c3b46d9accfe0159c8c68cf79044.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 5 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_9a40c3b46d9accfe0159c8c68cf79044.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_9a40c3b46d9accfe0159c8c68cf79044.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1844	JaffaCakes118_9a40c3b46d9accfe0159c8c68cf79044.exe
3616	explorer.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1844 wrote to memory of 620	1844	JaffaCakes118_9a40c3b46d9accfe0159c8c68cf79044.exe	84
PID 1844 wrote to memory of 620	1844	JaffaCakes118_9a40c3b46d9accfe0159c8c68cf79044.exe	84
PID 1844 wrote to memory of 620	1844	JaffaCakes118_9a40c3b46d9accfe0159c8c68cf79044.exe	84
PID 1844 wrote to memory of 620	1844	JaffaCakes118_9a40c3b46d9accfe0159c8c68cf79044.exe	84
PID 1844 wrote to memory of 620	1844	JaffaCakes118_9a40c3b46d9accfe0159c8c68cf79044.exe	84
PID 1844 wrote to memory of 620	1844	JaffaCakes118_9a40c3b46d9accfe0159c8c68cf79044.exe	84
PID 1844 wrote to memory of 620	1844	JaffaCakes118_9a40c3b46d9accfe0159c8c68cf79044.exe	84
PID 1844 wrote to memory of 620	1844	JaffaCakes118_9a40c3b46d9accfe0159c8c68cf79044.exe	84
PID 620 wrote to memory of 2328	620	JaffaCakes118_9a40c3b46d9accfe0159c8c68cf79044.EXE	87
PID 620 wrote to memory of 2328	620	JaffaCakes118_9a40c3b46d9accfe0159c8c68cf79044.EXE	87
PID 620 wrote to memory of 2328	620	JaffaCakes118_9a40c3b46d9accfe0159c8c68cf79044.EXE	87
PID 620 wrote to memory of 2328	620	JaffaCakes118_9a40c3b46d9accfe0159c8c68cf79044.EXE	87
PID 620 wrote to memory of 3616	620	JaffaCakes118_9a40c3b46d9accfe0159c8c68cf79044.EXE	88
PID 620 wrote to memory of 3616	620	JaffaCakes118_9a40c3b46d9accfe0159c8c68cf79044.EXE	88
PID 620 wrote to memory of 3616	620	JaffaCakes118_9a40c3b46d9accfe0159c8c68cf79044.EXE	88
PID 620 wrote to memory of 2452	620	JaffaCakes118_9a40c3b46d9accfe0159c8c68cf79044.EXE	89
PID 620 wrote to memory of 2452	620	JaffaCakes118_9a40c3b46d9accfe0159c8c68cf79044.EXE	89
PID 620 wrote to memory of 2452	620	JaffaCakes118_9a40c3b46d9accfe0159c8c68cf79044.EXE	89
PID 620 wrote to memory of 2452	620	JaffaCakes118_9a40c3b46d9accfe0159c8c68cf79044.EXE	89
PID 620 wrote to memory of 3616	620	JaffaCakes118_9a40c3b46d9accfe0159c8c68cf79044.EXE	88

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9a40c3b46d9accfe0159c8c68cf79044.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9a40c3b46d9accfe0159c8c68cf79044.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1844
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9a40c3b46d9accfe0159c8c68cf79044.EXE
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9a40c3b46d9accfe0159c8c68cf79044.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:620
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - Boot or Logon Autostart Execution: Active Setup
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    PID:2328
- - C:\Windows\SysWOW64\explorer.exe
    explorer.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:3616
- - C:\Windows\SysWOW64\explorer.exe
    explorer.exe
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2452

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:\Windows\teste\Server.exe

Filesize
83KB

MD5
9a40c3b46d9accfe0159c8c68cf79044

SHA1
55b9c6414e19b11b80c741950caf80b183e594f3

SHA256
722f80f199f9fd3eb24bf3a37a2438168908daa11f87cbdee9bf565261d4e818

SHA512
bb796455539402fda2ae620b23e88aba6ae0a5faa1c75b640f94dfd5ea2aabb08f576783cceb4e1df3aa39bef6544d141fb3f81dd86e501ec2d2c710f4a13dca

Download Submit
memory/620-2-0x0000000000C80000-0x0000000000C95000-memory.dmp

Filesize
84KB

Download
memory/620-4-0x0000000000C80000-0x0000000000C95000-memory.dmp

Filesize
84KB

Download
memory/620-6-0x0000000000C80000-0x0000000000C95000-memory.dmp

Filesize
84KB

Download
memory/620-5-0x0000000000C80000-0x0000000000C95000-memory.dmp

Filesize
84KB

Download
memory/620-16-0x0000000000C80000-0x0000000000C95000-memory.dmp

Filesize
84KB

Download
memory/2328-12-0x0000000000C80000-0x0000000000C95000-memory.dmp

Filesize
84KB

Download
memory/2452-14-0x0000000000C80000-0x0000000000C95000-memory.dmp

Filesize
84KB

Download
memory/3616-15-0x0000000000C80000-0x0000000000C95000-memory.dmp

Filesize
84KB

Download
memory/3616-19-0x0000000000C80000-0x0000000000C95000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads