xtremerat | 1848d3d3684e367419eccecc11b18db2f4f8eb50c3f22215efed95ae3d1f7d9f

General

Target

6eaea6b1b1dd53d9e9c1e42f01dd85b0_JaffaCakes118.exe
Size

113KB
MD5

6eaea6b1b1dd53d9e9c1e42f01dd85b0
SHA1

7f639d069e7ac11b99b33bcd5141649d564da2b5
SHA256

1848d3d3684e367419eccecc11b18db2f4f8eb50c3f22215efed95ae3d1f7d9f
SHA512

b2264d9cc04b53120436e9a5347e73484f89ed86a6b7cbe62f7d3d622e556166d414a22a605a36b6ac8d2dcf1e0539497b39b40c072789de8f326108fc0f633c
SSDEEP

1536:iCSp7B0RGwWyuTYGUFwMeAur6vcOAFpRJNF+75DUSvHgMpvP5D9xS3rHBn7:irdq8dEMF+ErFnJkUmAMVRmL17

Score

10^/10

xtremerat discovery persistence rat spyware

Malware Config

Signatures

Detect XtremeRAT payload 8 IoCs

resource	yara_rule
behavioral2/memory/652-4-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/652-3-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/652-5-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/652-7-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2764-8-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/652-9-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2764-11-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2764-13-0x0000000010000000-0x000000001004A000-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

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\{7D10H52R-744Y-8S1K-NM1D-Q3L8C1F0H33X}	taskmgr.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{7D10H52R-744Y-8S1K-NM1D-Q3L8C1F0H33X}\StubPath = "C:\\Windows\\InstallDir\\Server.exe restart"	taskmgr.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:\\Windows\\InstallDir\\Server.exe"	taskmgr.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe"	taskmgr.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1856 set thread context of 652	1856	6eaea6b1b1dd53d9e9c1e42f01dd85b0_JaffaCakes118.exe	84

Drops file in Windows directory 2 IoCs

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

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1988	2764	WerFault.exe	85
2248	2764	WerFault.exe	85

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	6eaea6b1b1dd53d9e9c1e42f01dd85b0_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6eaea6b1b1dd53d9e9c1e42f01dd85b0_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskmgr.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1856	6eaea6b1b1dd53d9e9c1e42f01dd85b0_JaffaCakes118.exe
2764	taskmgr.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1856 wrote to memory of 652	1856	6eaea6b1b1dd53d9e9c1e42f01dd85b0_JaffaCakes118.exe	84
PID 1856 wrote to memory of 652	1856	6eaea6b1b1dd53d9e9c1e42f01dd85b0_JaffaCakes118.exe	84
PID 1856 wrote to memory of 652	1856	6eaea6b1b1dd53d9e9c1e42f01dd85b0_JaffaCakes118.exe	84
PID 1856 wrote to memory of 652	1856	6eaea6b1b1dd53d9e9c1e42f01dd85b0_JaffaCakes118.exe	84
PID 1856 wrote to memory of 652	1856	6eaea6b1b1dd53d9e9c1e42f01dd85b0_JaffaCakes118.exe	84
PID 1856 wrote to memory of 652	1856	6eaea6b1b1dd53d9e9c1e42f01dd85b0_JaffaCakes118.exe	84
PID 1856 wrote to memory of 652	1856	6eaea6b1b1dd53d9e9c1e42f01dd85b0_JaffaCakes118.exe	84
PID 1856 wrote to memory of 652	1856	6eaea6b1b1dd53d9e9c1e42f01dd85b0_JaffaCakes118.exe	84
PID 1856 wrote to memory of 652	1856	6eaea6b1b1dd53d9e9c1e42f01dd85b0_JaffaCakes118.exe	84
PID 1856 wrote to memory of 652	1856	6eaea6b1b1dd53d9e9c1e42f01dd85b0_JaffaCakes118.exe	84
PID 1856 wrote to memory of 652	1856	6eaea6b1b1dd53d9e9c1e42f01dd85b0_JaffaCakes118.exe	84
PID 1856 wrote to memory of 652	1856	6eaea6b1b1dd53d9e9c1e42f01dd85b0_JaffaCakes118.exe	84
PID 1856 wrote to memory of 652	1856	6eaea6b1b1dd53d9e9c1e42f01dd85b0_JaffaCakes118.exe	84
PID 652 wrote to memory of 2764	652	6eaea6b1b1dd53d9e9c1e42f01dd85b0_JaffaCakes118.exe	85
PID 652 wrote to memory of 2764	652	6eaea6b1b1dd53d9e9c1e42f01dd85b0_JaffaCakes118.exe	85
PID 652 wrote to memory of 2764	652	6eaea6b1b1dd53d9e9c1e42f01dd85b0_JaffaCakes118.exe	85
PID 652 wrote to memory of 2764	652	6eaea6b1b1dd53d9e9c1e42f01dd85b0_JaffaCakes118.exe	85

C:\Users\Admin\AppData\Local\Temp\6eaea6b1b1dd53d9e9c1e42f01dd85b0_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\6eaea6b1b1dd53d9e9c1e42f01dd85b0_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1856
- C:\Users\Admin\AppData\Local\Temp\6eaea6b1b1dd53d9e9c1e42f01dd85b0_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\6eaea6b1b1dd53d9e9c1e42f01dd85b0_JaffaCakes118.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:652
- - C:\Windows\SysWOW64\taskmgr.exe
    taskmgr.exe
    3⤵
    - 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 SetWindowsHookEx
    PID:2764
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2764 -s 1080
      4⤵
      Program crash
      PID:1988
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2764 -s 1088
      4⤵
      Program crash
      PID:2248

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2764 -ip 2764
1⤵
PID:4220

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2764 -ip 2764
1⤵
PID:3428

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/652-4-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/652-3-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/652-5-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/652-7-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/652-9-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1856-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/1856-6-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2764-8-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/2764-11-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/2764-13-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads