xtremerat | 383b185ca47e74c648ef824b9158f0a7a58772863ec4292f01d3e55c12218baf

General

Target

c79b5e7ac9336d4b2398fc6d59183e28_JaffaCakes118.exe
Size

783KB
MD5

c79b5e7ac9336d4b2398fc6d59183e28
SHA1

3578d764f478110a10313e91025e8ac934c96b5f
SHA256

383b185ca47e74c648ef824b9158f0a7a58772863ec4292f01d3e55c12218baf
SHA512

0acd499658d1404eb34d90e31f5149768d020289fe6dc757488d8a4745896b4d7a93efd43086aca7cf8bc895391ba0db4c7638510b350113ecf08556dd347476
SSDEEP

12288:Yo2iE8n9yXz4LSiecUoSkBBjjPOMccUXas2HFGpQdyRTWAz:pb9yhrgHPFccAH2HFC5z

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

nerozhack.ddns.com.br

alonedevil.no-ip.org

gameszero.dyndns.org

Signatures

Detect XtremeRAT payload 6 IoCs

resource	yara_rule
behavioral2/memory/4940-24-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/948-25-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3300-26-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3300-28-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/948-29-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3300-31-0x0000000010000000-0x000000001004D000-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

Drops file in Drivers directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\System.exe	taskmgr.exe
File created	C:\Windows\system32\drivers\etc\System.exe	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\UpdaterStartupUtility = "C:\\Windows\\system32\\drivers\\etc\\System.exe"	taskmgr.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\PlusServices = "C:\\Windows\\system32\\drivers\\etc\\System.exe"	taskmgr.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/2696-16-0x0000000000400000-0x0000000000582000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2696 set thread context of 1992	2696	c79b5e7ac9336d4b2398fc6d59183e28_JaffaCakes118.exe	82
PID 1992 set thread context of 4940	1992	c79b5e7ac9336d4b2398fc6d59183e28_JaffaCakes118.exe	83

UPX packed file 12 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/1992-8-0x0000000000400000-0x0000000000415000-memory.dmp	upx
behavioral2/memory/1992-10-0x0000000000400000-0x0000000000415000-memory.dmp	upx
behavioral2/memory/1992-12-0x0000000000400000-0x0000000000415000-memory.dmp	upx
behavioral2/memory/4940-18-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4940-20-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1992-23-0x0000000000400000-0x0000000000415000-memory.dmp	upx
behavioral2/memory/4940-24-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/948-25-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3300-26-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3300-28-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/948-29-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3300-31-0x0000000010000000-0x000000001004D000-memory.dmp	upx

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
4544	948	WerFault.exe	84
4580	948	WerFault.exe	84
3588	3300	WerFault.exe	85
2836	3300	WerFault.exe	85

System Location Discovery: System Language Discovery 1 TTPs 5 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	c79b5e7ac9336d4b2398fc6d59183e28_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c79b5e7ac9336d4b2398fc6d59183e28_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c79b5e7ac9336d4b2398fc6d59183e28_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1992	c79b5e7ac9336d4b2398fc6d59183e28_JaffaCakes118.exe
3300	taskmgr.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 2696 wrote to memory of 1992	2696	c79b5e7ac9336d4b2398fc6d59183e28_JaffaCakes118.exe	82
PID 2696 wrote to memory of 1992	2696	c79b5e7ac9336d4b2398fc6d59183e28_JaffaCakes118.exe	82
PID 2696 wrote to memory of 1992	2696	c79b5e7ac9336d4b2398fc6d59183e28_JaffaCakes118.exe	82
PID 2696 wrote to memory of 1992	2696	c79b5e7ac9336d4b2398fc6d59183e28_JaffaCakes118.exe	82
PID 2696 wrote to memory of 1992	2696	c79b5e7ac9336d4b2398fc6d59183e28_JaffaCakes118.exe	82
PID 2696 wrote to memory of 1992	2696	c79b5e7ac9336d4b2398fc6d59183e28_JaffaCakes118.exe	82
PID 1992 wrote to memory of 4940	1992	c79b5e7ac9336d4b2398fc6d59183e28_JaffaCakes118.exe	83
PID 1992 wrote to memory of 4940	1992	c79b5e7ac9336d4b2398fc6d59183e28_JaffaCakes118.exe	83
PID 1992 wrote to memory of 4940	1992	c79b5e7ac9336d4b2398fc6d59183e28_JaffaCakes118.exe	83
PID 1992 wrote to memory of 4940	1992	c79b5e7ac9336d4b2398fc6d59183e28_JaffaCakes118.exe	83
PID 1992 wrote to memory of 4940	1992	c79b5e7ac9336d4b2398fc6d59183e28_JaffaCakes118.exe	83
PID 1992 wrote to memory of 4940	1992	c79b5e7ac9336d4b2398fc6d59183e28_JaffaCakes118.exe	83
PID 1992 wrote to memory of 4940	1992	c79b5e7ac9336d4b2398fc6d59183e28_JaffaCakes118.exe	83
PID 1992 wrote to memory of 4940	1992	c79b5e7ac9336d4b2398fc6d59183e28_JaffaCakes118.exe	83
PID 4940 wrote to memory of 948	4940	c79b5e7ac9336d4b2398fc6d59183e28_JaffaCakes118.exe	84
PID 4940 wrote to memory of 948	4940	c79b5e7ac9336d4b2398fc6d59183e28_JaffaCakes118.exe	84
PID 4940 wrote to memory of 948	4940	c79b5e7ac9336d4b2398fc6d59183e28_JaffaCakes118.exe	84
PID 4940 wrote to memory of 948	4940	c79b5e7ac9336d4b2398fc6d59183e28_JaffaCakes118.exe	84
PID 4940 wrote to memory of 3300	4940	c79b5e7ac9336d4b2398fc6d59183e28_JaffaCakes118.exe	85
PID 4940 wrote to memory of 3300	4940	c79b5e7ac9336d4b2398fc6d59183e28_JaffaCakes118.exe	85
PID 4940 wrote to memory of 3300	4940	c79b5e7ac9336d4b2398fc6d59183e28_JaffaCakes118.exe	85
PID 4940 wrote to memory of 3300	4940	c79b5e7ac9336d4b2398fc6d59183e28_JaffaCakes118.exe	85

C:\Users\Admin\AppData\Local\Temp\c79b5e7ac9336d4b2398fc6d59183e28_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c79b5e7ac9336d4b2398fc6d59183e28_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2696
- C:\Users\Admin\AppData\Local\Temp\c79b5e7ac9336d4b2398fc6d59183e28_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\c79b5e7ac9336d4b2398fc6d59183e28_JaffaCakes118.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1992
- - C:\Users\Admin\AppData\Local\Temp\c79b5e7ac9336d4b2398fc6d59183e28_JaffaCakes118.exe
    C:\Users\Admin\AppData\Local\Temp\c79b5e7ac9336d4b2398fc6d59183e28_JaffaCakes118.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4940
  - - C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      4⤵
      System Location Discovery: System Language Discovery
      PID:948
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 948 -s 484
        5⤵
        Program crash
        
        PID:4544
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 948 -s 504
        5⤵
        Program crash
        
        PID:4580
  - - C:\WINDOWS\SysWOW64\taskmgr.exe
      C:\WINDOWS\system32\taskmgr.exe
      4⤵
      Drops file in Drivers directory
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      Suspicious use of SetWindowsHookEx
      PID:3300
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3300 -s 1076
        5⤵
        Program crash
        
        PID:3588
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3300 -s 1100
        5⤵
        Program crash
        
        PID:2836

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 948 -ip 948
1⤵
PID:4460

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 948 -ip 948
1⤵
PID:4464

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3300 -ip 3300
1⤵
PID:2552

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3300 -ip 3300
1⤵
PID:2392

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

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/948-25-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/948-29-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1992-12-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1992-23-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1992-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1992-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2696-0-0x0000000000400000-0x0000000000582000-memory.dmp

Filesize
1.5MB

Download
memory/2696-16-0x0000000000400000-0x0000000000582000-memory.dmp

Filesize
1.5MB

Download
memory/3300-26-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3300-28-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3300-31-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4940-18-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4940-20-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4940-24-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads