xtremerat | 017b82ea2475a6c2b395c66f6fab225fca247d36f480c85cb2556cbbcc240558

General

Target

JaffaCakes118_3f363190678e26a115439539652a8f4e.exe
Size

113KB
MD5

3f363190678e26a115439539652a8f4e
SHA1

52f3e5ce495420a5b737a02708c9c8eb99e0e11c
SHA256

017b82ea2475a6c2b395c66f6fab225fca247d36f480c85cb2556cbbcc240558
SHA512

7a43198b4db8afa99d39f0bb75b5505487b49d87af8b96d3c1e97c5ac8008ae5b4d5ba8f84b653d6deadfe797f063926f87dad7d428d1ced5757b4e02d3394b6
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/464-3-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/464-4-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/464-5-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/464-7-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2032-8-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/464-9-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2032-11-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2032-14-0x0000000010000000-0x000000001004A000-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\{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-1-5-21-3227495264-2217614367-4027411560-1000\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 4408 set thread context of 464	4408	JaffaCakes118_3f363190678e26a115439539652a8f4e.exe	83

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
3500	2032	WerFault.exe	84
4064	2032	WerFault.exe	84

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	taskmgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_3f363190678e26a115439539652a8f4e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_3f363190678e26a115439539652a8f4e.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4408	JaffaCakes118_3f363190678e26a115439539652a8f4e.exe
2032	taskmgr.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 4408 wrote to memory of 464	4408	JaffaCakes118_3f363190678e26a115439539652a8f4e.exe	83
PID 4408 wrote to memory of 464	4408	JaffaCakes118_3f363190678e26a115439539652a8f4e.exe	83
PID 4408 wrote to memory of 464	4408	JaffaCakes118_3f363190678e26a115439539652a8f4e.exe	83
PID 4408 wrote to memory of 464	4408	JaffaCakes118_3f363190678e26a115439539652a8f4e.exe	83
PID 4408 wrote to memory of 464	4408	JaffaCakes118_3f363190678e26a115439539652a8f4e.exe	83
PID 4408 wrote to memory of 464	4408	JaffaCakes118_3f363190678e26a115439539652a8f4e.exe	83
PID 4408 wrote to memory of 464	4408	JaffaCakes118_3f363190678e26a115439539652a8f4e.exe	83
PID 4408 wrote to memory of 464	4408	JaffaCakes118_3f363190678e26a115439539652a8f4e.exe	83
PID 4408 wrote to memory of 464	4408	JaffaCakes118_3f363190678e26a115439539652a8f4e.exe	83
PID 4408 wrote to memory of 464	4408	JaffaCakes118_3f363190678e26a115439539652a8f4e.exe	83
PID 4408 wrote to memory of 464	4408	JaffaCakes118_3f363190678e26a115439539652a8f4e.exe	83
PID 4408 wrote to memory of 464	4408	JaffaCakes118_3f363190678e26a115439539652a8f4e.exe	83
PID 4408 wrote to memory of 464	4408	JaffaCakes118_3f363190678e26a115439539652a8f4e.exe	83
PID 464 wrote to memory of 2032	464	JaffaCakes118_3f363190678e26a115439539652a8f4e.exe	84
PID 464 wrote to memory of 2032	464	JaffaCakes118_3f363190678e26a115439539652a8f4e.exe	84
PID 464 wrote to memory of 2032	464	JaffaCakes118_3f363190678e26a115439539652a8f4e.exe	84
PID 464 wrote to memory of 2032	464	JaffaCakes118_3f363190678e26a115439539652a8f4e.exe	84

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3f363190678e26a115439539652a8f4e.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3f363190678e26a115439539652a8f4e.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4408
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3f363190678e26a115439539652a8f4e.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3f363190678e26a115439539652a8f4e.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:464
- - 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:2032
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2032 -s 1080
      4⤵
      Program crash
      PID:3500
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2032 -s 1088
      4⤵
      Program crash
      PID:4064

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2032 -ip 2032
1⤵
PID:2292

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 2032 -ip 2032
1⤵
PID:3568

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/464-3-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/464-4-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/464-5-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/464-7-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/464-9-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/2032-8-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/2032-11-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/2032-14-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/4408-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4408-6-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads