xtremerat | 4dd54e5fd7309349b0c1b09453f9599bc4cc4887f9d43e4b826b15660a453e21

General

Target

JaffaCakes118_b78ef77c25bd2ee2637782cab8765527.exe
Size

65KB
MD5

b78ef77c25bd2ee2637782cab8765527
SHA1

9f01f99228da25a2a3a89175821495e9d69b1904
SHA256

4dd54e5fd7309349b0c1b09453f9599bc4cc4887f9d43e4b826b15660a453e21
SHA512

525032e27379dd29be87cd060be0ea3119f57636b5d2490173d84d19aa11a8b0605ce1d2a4afbb74a9bd67788857480555adb869715fcf62967a935933bc9c79
SSDEEP

768:l9m1Sq4NQDrBsH1Uzz05De1QuMVTSN8iJHoX7Vmu6AeXVtWA4egB7voNwcSQZ:Ssq+QsJaQuISJJUmFA+F4rKNwaZ

Score

10^/10

xtremerat discovery persistence rat spyware

Malware Config

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral1/memory/2320-3-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral1/memory/1248-2-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral1/memory/1248-6-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral1/memory/1248-5-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral1/memory/1248-7-0x0000000010000000-0x0000000010048000-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\{2V6FFP4K-2X81-BWL4-4QX4-12AC70P6767L}	notepad.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{2V6FFP4K-2X81-BWL4-4QX4-12AC70P6767L}\StubPath = "C:\\Windows\\InstallDir\\Server.exe restart"	notepad.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\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe"	notepad.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\InstallDir\\Server.exe"	notepad.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\InstallDir\Server.exe	notepad.exe
File opened for modification	C:\Windows\InstallDir\Server.exe	notepad.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 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_b78ef77c25bd2ee2637782cab8765527.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2320 wrote to memory of 1248	2320	JaffaCakes118_b78ef77c25bd2ee2637782cab8765527.exe	31
PID 2320 wrote to memory of 1248	2320	JaffaCakes118_b78ef77c25bd2ee2637782cab8765527.exe	31
PID 2320 wrote to memory of 1248	2320	JaffaCakes118_b78ef77c25bd2ee2637782cab8765527.exe	31
PID 2320 wrote to memory of 1248	2320	JaffaCakes118_b78ef77c25bd2ee2637782cab8765527.exe	31
PID 2320 wrote to memory of 1248	2320	JaffaCakes118_b78ef77c25bd2ee2637782cab8765527.exe	31

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b78ef77c25bd2ee2637782cab8765527.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b78ef77c25bd2ee2637782cab8765527.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2320
- C:\Windows\SysWOW64\notepad.exe
  notepad.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
  PID:1248

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/1248-1-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/1248-2-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/1248-6-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/1248-5-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/1248-7-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/2320-3-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads