xtremerat | 3027fe888db37881d84337a844d1a33090a7f05ae746d19be9a1caeda268d915

General

Target

4b7459bcdc1972e559f8c9455906797b_JaffaCakes118.exe
Size

1.1MB
MD5

4b7459bcdc1972e559f8c9455906797b
SHA1

0c33115ee013d716a53a3645b436093c9bbc0109
SHA256

3027fe888db37881d84337a844d1a33090a7f05ae746d19be9a1caeda268d915
SHA512

ae9df7f7380066021a66d7f77caf4fef3f222f1c90700fbc7041ce404be178096e5f0ee1bb07b08ec1fe0559f6a529aea9b26786c03cc455c78d483cfdb44d76
SSDEEP

24576:xCnCp7eUQYU5q4Ypnx8DpLjGMCyFLjYGCsYFdnocS:xCnCp7d/bHRSd/pVL0S

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/1892-3-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1892-4-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1892-5-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1892-7-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1588-8-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1892-11-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1892-10-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1588-12-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1892-13-0x0000000010000000-0x000000001004A000-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
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"	4b7459bcdc1972e559f8c9455906797b_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{R2WI1CKR-X553-362C-326D-0QL77F442L71}	4b7459bcdc1972e559f8c9455906797b_JaffaCakes118.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"	4b7459bcdc1972e559f8c9455906797b_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Live Messenger = "C:\\Windows\\Windows Live Messenger\\msnmsgr.exe"	4b7459bcdc1972e559f8c9455906797b_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 232 set thread context of 1892	232	4b7459bcdc1972e559f8c9455906797b_JaffaCakes118.exe	85

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Windows Live Messenger\msnmsgr.exe	4b7459bcdc1972e559f8c9455906797b_JaffaCakes118.exe
File created	C:\Windows\Windows Live Messenger\msnmsgr.exe	4b7459bcdc1972e559f8c9455906797b_JaffaCakes118.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
2140	1588	WerFault.exe	87
3060	1588	WerFault.exe	87

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	4b7459bcdc1972e559f8c9455906797b_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4b7459bcdc1972e559f8c9455906797b_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
232	4b7459bcdc1972e559f8c9455906797b_JaffaCakes118.exe
1892	4b7459bcdc1972e559f8c9455906797b_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 232 wrote to memory of 1892	232	4b7459bcdc1972e559f8c9455906797b_JaffaCakes118.exe	85
PID 232 wrote to memory of 1892	232	4b7459bcdc1972e559f8c9455906797b_JaffaCakes118.exe	85
PID 232 wrote to memory of 1892	232	4b7459bcdc1972e559f8c9455906797b_JaffaCakes118.exe	85
PID 232 wrote to memory of 1892	232	4b7459bcdc1972e559f8c9455906797b_JaffaCakes118.exe	85
PID 232 wrote to memory of 1892	232	4b7459bcdc1972e559f8c9455906797b_JaffaCakes118.exe	85
PID 232 wrote to memory of 1892	232	4b7459bcdc1972e559f8c9455906797b_JaffaCakes118.exe	85
PID 232 wrote to memory of 1892	232	4b7459bcdc1972e559f8c9455906797b_JaffaCakes118.exe	85
PID 232 wrote to memory of 1892	232	4b7459bcdc1972e559f8c9455906797b_JaffaCakes118.exe	85
PID 232 wrote to memory of 1892	232	4b7459bcdc1972e559f8c9455906797b_JaffaCakes118.exe	85
PID 232 wrote to memory of 1892	232	4b7459bcdc1972e559f8c9455906797b_JaffaCakes118.exe	85
PID 232 wrote to memory of 1892	232	4b7459bcdc1972e559f8c9455906797b_JaffaCakes118.exe	85
PID 232 wrote to memory of 1892	232	4b7459bcdc1972e559f8c9455906797b_JaffaCakes118.exe	85
PID 232 wrote to memory of 1892	232	4b7459bcdc1972e559f8c9455906797b_JaffaCakes118.exe	85
PID 1892 wrote to memory of 1588	1892	4b7459bcdc1972e559f8c9455906797b_JaffaCakes118.exe	87
PID 1892 wrote to memory of 1588	1892	4b7459bcdc1972e559f8c9455906797b_JaffaCakes118.exe	87
PID 1892 wrote to memory of 1588	1892	4b7459bcdc1972e559f8c9455906797b_JaffaCakes118.exe	87
PID 1892 wrote to memory of 1588	1892	4b7459bcdc1972e559f8c9455906797b_JaffaCakes118.exe	87

C:\Users\Admin\AppData\Local\Temp\4b7459bcdc1972e559f8c9455906797b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4b7459bcdc1972e559f8c9455906797b_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:232
- C:\Users\Admin\AppData\Local\Temp\4b7459bcdc1972e559f8c9455906797b_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\4b7459bcdc1972e559f8c9455906797b_JaffaCakes118.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:1892
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1588
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1588 -s 480
      4⤵
      Program crash
      PID:2140
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1588 -s 488
      4⤵
      Program crash
      PID:3060

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1588 -ip 1588
1⤵
PID:1500

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 1588 -ip 1588
1⤵
PID:764

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/232-0-0x0000000000400000-0x0000000000508000-memory.dmp

Filesize
1.0MB

Download
memory/232-6-0x0000000000400000-0x0000000000508000-memory.dmp

Filesize
1.0MB

Download
memory/1588-8-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1588-12-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1892-3-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1892-4-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1892-5-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1892-7-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1892-11-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1892-10-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1892-13-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads