xtremerat | 7f8fbc2c3f01d48542404ca780147068c2ca0324bbc1b628f0b4569d361175f7

General

Target

JaffaCakes118_05db8bb015e8d0cab6adf0ef4a5a0b72.exe
Size

508KB
MD5

05db8bb015e8d0cab6adf0ef4a5a0b72
SHA1

b2ddae4a146e28e46f9229d7b399402eb333c99e
SHA256

7f8fbc2c3f01d48542404ca780147068c2ca0324bbc1b628f0b4569d361175f7
SHA512

31ff4bf744a902e06135894a6d8e4f344123ba66e4ee426a697f3fe0b3dfbad1189f39d362f916186f9ed1f5fd044ee40292db345a0c2701b9017d76bb9ff535
SSDEEP

3072:NYNHzKtIy5lBi6yLC1NSkQFWq/7s6LrC3x7EpHMgpVtl4N8DCFt+blvWiXon0euV:RalM0ZZwKlM0dmRc2KZw

Score

10^/10

xtremerat discovery persistence rat spyware

Malware Config

Extracted

Family

xtremerat

C2

wer99.no-ip.org

Signatures

Detect XtremeRAT payload 11 IoCs

resource	yara_rule
behavioral2/memory/2236-2-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2236-3-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2236-4-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2236-5-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/3092-6-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/3184-7-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2236-8-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/3184-11-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/3184-10-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/3092-12-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/3184-13-0x0000000010000000-0x000000001004A000-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\{RS857443-262M-Q02S-5YU2-TAS16G4L54R1}	calc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{RS857443-262M-Q02S-5YU2-TAS16G4L54R1}\StubPath = "C:\\Program Files (x86)\\InstallDir\\Server.exe restart"	calc.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\HKLM = "C:\\Program Files (x86)\\InstallDir\\Server.exe"	calc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Program Files (x86)\\InstallDir\\Server.exe"	calc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1064 set thread context of 2236	1064	JaffaCakes118_05db8bb015e8d0cab6adf0ef4a5a0b72.exe	83

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\InstallDir\Server.exe	calc.exe
File created	C:\Program Files (x86)\InstallDir\Server.exe	calc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 4 IoCs

pid	pid_target	Process	procid_target
3172	3092	WerFault.exe	84
4636	3184	WerFault.exe	85
724	3092	WerFault.exe	84
2436	3184	WerFault.exe	85

System Location Discovery: System Language Discovery 1 TTPs 4 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	calc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_05db8bb015e8d0cab6adf0ef4a5a0b72.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_05db8bb015e8d0cab6adf0ef4a5a0b72.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1064	JaffaCakes118_05db8bb015e8d0cab6adf0ef4a5a0b72.exe
3184	calc.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1064 wrote to memory of 2236	1064	JaffaCakes118_05db8bb015e8d0cab6adf0ef4a5a0b72.exe	83
PID 1064 wrote to memory of 2236	1064	JaffaCakes118_05db8bb015e8d0cab6adf0ef4a5a0b72.exe	83
PID 1064 wrote to memory of 2236	1064	JaffaCakes118_05db8bb015e8d0cab6adf0ef4a5a0b72.exe	83
PID 1064 wrote to memory of 2236	1064	JaffaCakes118_05db8bb015e8d0cab6adf0ef4a5a0b72.exe	83
PID 1064 wrote to memory of 2236	1064	JaffaCakes118_05db8bb015e8d0cab6adf0ef4a5a0b72.exe	83
PID 1064 wrote to memory of 2236	1064	JaffaCakes118_05db8bb015e8d0cab6adf0ef4a5a0b72.exe	83
PID 1064 wrote to memory of 2236	1064	JaffaCakes118_05db8bb015e8d0cab6adf0ef4a5a0b72.exe	83
PID 1064 wrote to memory of 2236	1064	JaffaCakes118_05db8bb015e8d0cab6adf0ef4a5a0b72.exe	83
PID 1064 wrote to memory of 2236	1064	JaffaCakes118_05db8bb015e8d0cab6adf0ef4a5a0b72.exe	83
PID 1064 wrote to memory of 2236	1064	JaffaCakes118_05db8bb015e8d0cab6adf0ef4a5a0b72.exe	83
PID 1064 wrote to memory of 2236	1064	JaffaCakes118_05db8bb015e8d0cab6adf0ef4a5a0b72.exe	83
PID 1064 wrote to memory of 2236	1064	JaffaCakes118_05db8bb015e8d0cab6adf0ef4a5a0b72.exe	83
PID 1064 wrote to memory of 2236	1064	JaffaCakes118_05db8bb015e8d0cab6adf0ef4a5a0b72.exe	83
PID 2236 wrote to memory of 3092	2236	JaffaCakes118_05db8bb015e8d0cab6adf0ef4a5a0b72.exe	84
PID 2236 wrote to memory of 3092	2236	JaffaCakes118_05db8bb015e8d0cab6adf0ef4a5a0b72.exe	84
PID 2236 wrote to memory of 3092	2236	JaffaCakes118_05db8bb015e8d0cab6adf0ef4a5a0b72.exe	84
PID 2236 wrote to memory of 3092	2236	JaffaCakes118_05db8bb015e8d0cab6adf0ef4a5a0b72.exe	84
PID 2236 wrote to memory of 3184	2236	JaffaCakes118_05db8bb015e8d0cab6adf0ef4a5a0b72.exe	85
PID 2236 wrote to memory of 3184	2236	JaffaCakes118_05db8bb015e8d0cab6adf0ef4a5a0b72.exe	85
PID 2236 wrote to memory of 3184	2236	JaffaCakes118_05db8bb015e8d0cab6adf0ef4a5a0b72.exe	85
PID 2236 wrote to memory of 3184	2236	JaffaCakes118_05db8bb015e8d0cab6adf0ef4a5a0b72.exe	85

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_05db8bb015e8d0cab6adf0ef4a5a0b72.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_05db8bb015e8d0cab6adf0ef4a5a0b72.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1064
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_05db8bb015e8d0cab6adf0ef4a5a0b72.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_05db8bb015e8d0cab6adf0ef4a5a0b72.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2236
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3092
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3092 -s 480
      4⤵
      Program crash
      PID:3172
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3092 -s 488
      4⤵
      Program crash
      PID:724
- - C:\Windows\SysWOW64\calc.exe
    calc.exe
    3⤵
    - Boot or Logon Autostart Execution: Active Setup
    - Adds Run key to start application
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:3184
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3184 -s 984
      4⤵
      Program crash
      PID:4636
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3184 -s 992
      4⤵
      Program crash
      PID:2436

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3092 -ip 3092
1⤵
PID:4716

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3184 -ip 3184
1⤵
PID:1524

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 3092 -ip 3092
1⤵
PID:2620

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3184 -ip 3184
1⤵
PID:3432

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/2236-2-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/2236-3-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/2236-4-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/2236-5-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/2236-8-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/3092-6-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/3092-12-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/3184-7-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/3184-11-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/3184-10-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/3184-13-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads