xtremerat | 65eec004e94b420afe9aced64e4794a1741e7bd606042b302d5a62c962dddb03

General

Target

JaffaCakes118_7a922cc169b249073fadd304f4d3a0a0.exe
Size

21KB
MD5

7a922cc169b249073fadd304f4d3a0a0
SHA1

9c1fc905d991eed51f04c96349637aa7ca396aa0
SHA256

65eec004e94b420afe9aced64e4794a1741e7bd606042b302d5a62c962dddb03
SHA512

85eb0eadbd8c73eceac0f13e67c14537111ab2e825cec54176aba278e0aa4d5cc4c6d0a70bf76b50342e4b96debd46204860b4cb3fdfbfd5a4648fb76796941d
SSDEEP

384:7IdmF+Ti213fEF9QZd/cBr5M/gOjkaS4s/1k5YiZNlH8pQ4djhty4OOpLR:7IsF81fG9QveLOYTe5YiB8pQHC

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/2192-7-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral2/memory/960-8-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral2/memory/2192-10-0x0000000000C80000-0x0000000000C96000-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\{CXQH1ITX-511P-4UO4-3AY1-J0JW3538A7Y7}	JaffaCakes118_7a922cc169b249073fadd304f4d3a0a0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{CXQH1ITX-511P-4UO4-3AY1-J0JW3538A7Y7}\StubPath = "C:\\Windows\\system32\\InstallDir\\crss.exe restart"	JaffaCakes118_7a922cc169b249073fadd304f4d3a0a0.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\AdobeFlash = "C:\\Windows\\system32\\InstallDir\\crss.exe"	JaffaCakes118_7a922cc169b249073fadd304f4d3a0a0.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Java8 = "C:\\Windows\\system32\\InstallDir\\crss.exe"	JaffaCakes118_7a922cc169b249073fadd304f4d3a0a0.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\InstallDir\crss.exe	JaffaCakes118_7a922cc169b249073fadd304f4d3a0a0.exe
File created	C:\Windows\SysWOW64\InstallDir\crss.exe	JaffaCakes118_7a922cc169b249073fadd304f4d3a0a0.exe
File opened for modification	C:\Windows\SysWOW64\InstallDir\	JaffaCakes118_7a922cc169b249073fadd304f4d3a0a0.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/960-0-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral2/memory/2192-7-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral2/memory/960-8-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral2/memory/2192-10-0x0000000000C80000-0x0000000000C96000-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 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	JaffaCakes118_7a922cc169b249073fadd304f4d3a0a0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2192	explorer.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 960 wrote to memory of 2192	960	JaffaCakes118_7a922cc169b249073fadd304f4d3a0a0.exe	83
PID 960 wrote to memory of 2192	960	JaffaCakes118_7a922cc169b249073fadd304f4d3a0a0.exe	83
PID 960 wrote to memory of 2192	960	JaffaCakes118_7a922cc169b249073fadd304f4d3a0a0.exe	83
PID 960 wrote to memory of 2192	960	JaffaCakes118_7a922cc169b249073fadd304f4d3a0a0.exe	83

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7a922cc169b249073fadd304f4d3a0a0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7a922cc169b249073fadd304f4d3a0a0.exe"
1⤵
- Boot or Logon Autostart Execution: Active Setup
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:960
- C:\Windows\SysWOW64\explorer.exe
  explorer.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2192

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

memory/960-0-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/960-8-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2192-7-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2192-10-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads