xtremerat | 58e9c5e1b595081208c8ef403150121b9aeda5411df545d0f3d3a256c3f57d19

General

Target

JaffaCakes118_7761039c57357d06bd4bee421fe6aeb8.exe
Size

21KB
MD5

7761039c57357d06bd4bee421fe6aeb8
SHA1

110ab0dcd07bab99b71b863e3dda9dc74ccfb20f
SHA256

58e9c5e1b595081208c8ef403150121b9aeda5411df545d0f3d3a256c3f57d19
SHA512

cb02788eee2f6d5d5e40d63e806318def7b5aad9fbcff62669e3445a6e6a835239f02fcefc54b1afa395a2b816b565762922e798f3170675ae48f59bc5f0c669
SSDEEP

384:uIdmF+TH95xJMu/0PlxjV8BINhuLJ37tMOpuqqz3KK7eIVmi4+fdct09UyBrpLR:uIsF8HdbKjV8BX7Vy6K7eIVThdcCUA

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

2.no-ip.biz

Signatures

Detect XtremeRAT payload 4 IoCs

resource	yara_rule
behavioral2/memory/512-4-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral2/memory/856-6-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral2/memory/2792-7-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral2/memory/856-9-0x0000000000C80000-0x0000000000C96000-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 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\{27071777-S70G-NYV7-4K1O-BTQ623E547VO}\StubPath = "C:\\Windows\\system32\\InstallDir\\Server.exe restart"	svchost.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{27071777-S70G-NYV7-4K1O-BTQ623E547VO}	JaffaCakes118_7761039c57357d06bd4bee421fe6aeb8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{27071777-S70G-NYV7-4K1O-BTQ623E547VO}\StubPath = "C:\\Windows\\system32\\InstallDir\\Server.exe restart"	JaffaCakes118_7761039c57357d06bd4bee421fe6aeb8.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{27071777-S70G-NYV7-4K1O-BTQ623E547VO}	svchost.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\\system32\\InstallDir\\Server.exe"	JaffaCakes118_7761039c57357d06bd4bee421fe6aeb8.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\system32\\InstallDir\\Server.exe"	JaffaCakes118_7761039c57357d06bd4bee421fe6aeb8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\system32\\InstallDir\\Server.exe"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\system32\\InstallDir\\Server.exe"	svchost.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\InstallDir\Server.exe	JaffaCakes118_7761039c57357d06bd4bee421fe6aeb8.exe
File created	C:\Windows\SysWOW64\InstallDir\Server.exe	JaffaCakes118_7761039c57357d06bd4bee421fe6aeb8.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2792-0-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral2/memory/512-4-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral2/files/0x000a000000023b7c-5.dat	upx
behavioral2/memory/856-6-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral2/memory/2792-7-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral2/memory/856-9-0x0000000000C80000-0x0000000000C96000-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 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	JaffaCakes118_7761039c57357d06bd4bee421fe6aeb8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
856	notepad.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2792 wrote to memory of 512	2792	JaffaCakes118_7761039c57357d06bd4bee421fe6aeb8.exe	82
PID 2792 wrote to memory of 512	2792	JaffaCakes118_7761039c57357d06bd4bee421fe6aeb8.exe	82
PID 2792 wrote to memory of 512	2792	JaffaCakes118_7761039c57357d06bd4bee421fe6aeb8.exe	82
PID 2792 wrote to memory of 512	2792	JaffaCakes118_7761039c57357d06bd4bee421fe6aeb8.exe	82
PID 2792 wrote to memory of 856	2792	JaffaCakes118_7761039c57357d06bd4bee421fe6aeb8.exe	83
PID 2792 wrote to memory of 856	2792	JaffaCakes118_7761039c57357d06bd4bee421fe6aeb8.exe	83
PID 2792 wrote to memory of 856	2792	JaffaCakes118_7761039c57357d06bd4bee421fe6aeb8.exe	83
PID 2792 wrote to memory of 856	2792	JaffaCakes118_7761039c57357d06bd4bee421fe6aeb8.exe	83

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7761039c57357d06bd4bee421fe6aeb8.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7761039c57357d06bd4bee421fe6aeb8.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:2792
- 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:512
- C:\Windows\SysWOW64\notepad.exe
  notepad.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:856

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\SysWOW64\InstallDir\Server.exe

Filesize
21KB

MD5
7761039c57357d06bd4bee421fe6aeb8

SHA1
110ab0dcd07bab99b71b863e3dda9dc74ccfb20f

SHA256
58e9c5e1b595081208c8ef403150121b9aeda5411df545d0f3d3a256c3f57d19

SHA512
cb02788eee2f6d5d5e40d63e806318def7b5aad9fbcff62669e3445a6e6a835239f02fcefc54b1afa395a2b816b565762922e798f3170675ae48f59bc5f0c669

Download Submit
memory/512-4-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/856-6-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/856-9-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2792-0-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2792-7-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads