xtremerat | 6a3a5961cd5a04f70442e5595dac2957fb14c1d79ef4ae7b56b38cfcb4ba5d45

General

Target

JaffaCakes118_227e6f0f10f251b38846518f03c26580.exe
Size

243KB
MD5

227e6f0f10f251b38846518f03c26580
SHA1

d5b7aefa2dc0e296d9232ce35f8e3c70d0d28d4e
SHA256

6a3a5961cd5a04f70442e5595dac2957fb14c1d79ef4ae7b56b38cfcb4ba5d45
SHA512

304e537a89313e65cfefe8ff0ac7b861aff18cb3e29f4cf0b2fabec180cc59607f0d70563264ac542ef91370e33b29aaf166386ae39c23735605b8b5730a3dde
SSDEEP

3072:XFd2Afoka0uMMGYmKlMCJ+UrxkCkK9a7+Z3wCYdj8vK1HDvhk1eSkDyfCnewUmGd:1jQwuYKs7M3jvEu1nkaCneT3NmEQ2

Score

10^/10

xtremerat discovery persistence rat spyware

Malware Config

Extracted

Family

xtremerat

C2

umtakcicek.dyndns.org

ࠁ谀umtakcicek.dyndns.org

Signatures

Detect XtremeRAT payload 9 IoCs

resource	yara_rule
behavioral2/memory/4856-3-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/4856-4-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/4856-5-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/4856-8-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/4052-9-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/4856-12-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/4856-11-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/4052-13-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/4856-14-0x0000000010000000-0x000000001004A000-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\{R2WI1CKR-X553-362C-326D-0QL77F442L71}	JaffaCakes118_227e6f0f10f251b38846518f03c26580.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{R2WI1CKR-X553-362C-326D-0QL77F442L71}\StubPath = "C:\\Windows\\Windows Live Messenger\\msnmsgr.exe restart"	JaffaCakes118_227e6f0f10f251b38846518f03c26580.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\Windows Live Messenger = "C:\\Windows\\Windows Live Messenger\\msnmsgr.exe"	JaffaCakes118_227e6f0f10f251b38846518f03c26580.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1479699283-3000499823-2337359760-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Live Messenger = "C:\\Windows\\Windows Live Messenger\\msnmsgr.exe"	JaffaCakes118_227e6f0f10f251b38846518f03c26580.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4908 set thread context of 4856	4908	JaffaCakes118_227e6f0f10f251b38846518f03c26580.exe	84

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Windows Live Messenger\msnmsgr.exe	JaffaCakes118_227e6f0f10f251b38846518f03c26580.exe
File created	C:\Windows\Windows Live Messenger\msnmsgr.exe	JaffaCakes118_227e6f0f10f251b38846518f03c26580.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
2224	4052	WerFault.exe	85
1516	4052	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	JaffaCakes118_227e6f0f10f251b38846518f03c26580.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_227e6f0f10f251b38846518f03c26580.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4908	JaffaCakes118_227e6f0f10f251b38846518f03c26580.exe
4856	JaffaCakes118_227e6f0f10f251b38846518f03c26580.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 4908 wrote to memory of 4856	4908	JaffaCakes118_227e6f0f10f251b38846518f03c26580.exe	84
PID 4908 wrote to memory of 4856	4908	JaffaCakes118_227e6f0f10f251b38846518f03c26580.exe	84
PID 4908 wrote to memory of 4856	4908	JaffaCakes118_227e6f0f10f251b38846518f03c26580.exe	84
PID 4908 wrote to memory of 4856	4908	JaffaCakes118_227e6f0f10f251b38846518f03c26580.exe	84
PID 4908 wrote to memory of 4856	4908	JaffaCakes118_227e6f0f10f251b38846518f03c26580.exe	84
PID 4908 wrote to memory of 4856	4908	JaffaCakes118_227e6f0f10f251b38846518f03c26580.exe	84
PID 4908 wrote to memory of 4856	4908	JaffaCakes118_227e6f0f10f251b38846518f03c26580.exe	84
PID 4908 wrote to memory of 4856	4908	JaffaCakes118_227e6f0f10f251b38846518f03c26580.exe	84
PID 4908 wrote to memory of 4856	4908	JaffaCakes118_227e6f0f10f251b38846518f03c26580.exe	84
PID 4908 wrote to memory of 4856	4908	JaffaCakes118_227e6f0f10f251b38846518f03c26580.exe	84
PID 4908 wrote to memory of 4856	4908	JaffaCakes118_227e6f0f10f251b38846518f03c26580.exe	84
PID 4908 wrote to memory of 4856	4908	JaffaCakes118_227e6f0f10f251b38846518f03c26580.exe	84
PID 4908 wrote to memory of 4856	4908	JaffaCakes118_227e6f0f10f251b38846518f03c26580.exe	84
PID 4856 wrote to memory of 4052	4856	JaffaCakes118_227e6f0f10f251b38846518f03c26580.exe	85
PID 4856 wrote to memory of 4052	4856	JaffaCakes118_227e6f0f10f251b38846518f03c26580.exe	85
PID 4856 wrote to memory of 4052	4856	JaffaCakes118_227e6f0f10f251b38846518f03c26580.exe	85
PID 4856 wrote to memory of 4052	4856	JaffaCakes118_227e6f0f10f251b38846518f03c26580.exe	85

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_227e6f0f10f251b38846518f03c26580.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_227e6f0f10f251b38846518f03c26580.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4908
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_227e6f0f10f251b38846518f03c26580.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_227e6f0f10f251b38846518f03c26580.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
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4856
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4052
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4052 -s 480
      4⤵
      Program crash
      PID:2224
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4052 -s 488
      4⤵
      Program crash
      PID:1516

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4052 -ip 4052
1⤵
PID:2664

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4052 -ip 4052
1⤵
PID:5036

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/4052-9-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/4052-13-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/4856-3-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/4856-4-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/4856-5-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/4856-8-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/4856-12-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/4856-11-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/4856-14-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/4908-0-0x0000000000400000-0x0000000000508000-memory.dmp

Filesize
1.0MB

Download
memory/4908-7-0x0000000000400000-0x0000000000508000-memory.dmp

Filesize
1.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads