xtremerat | 23b7be94ac173398c3626382f7b475ad13fc299afe3788e6812502b23592cb0b

General

Target

JaffaCakes118_8c8b32e34654515fdb07baeb6548e8cd.exe
Size

815KB
MD5

8c8b32e34654515fdb07baeb6548e8cd
SHA1

66d67489d3b2b70f2e36706b32b053688343c939
SHA256

23b7be94ac173398c3626382f7b475ad13fc299afe3788e6812502b23592cb0b
SHA512

77b6d7d524f56e75a3a3ee5001fc2e027cfcd945db6724a9750ab3a3646ba5b1cbde72fa88b7ce71a40c5d8c5af4344fe0cfe0a1891dffceea32f8a707729d7c
SSDEEP

12288:fo2iE8n9yXz4LSiecUoSkBBjjPOMccUXas2HFJHIg4uDz:gb9yhrgHPFccAH2HFJHIgJz

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/3320-17-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3256-18-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2636-19-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2636-21-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3256-22-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2636-23-0x0000000010000000-0x000000001004D000-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\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\PlusServices = "C:\\Windows\\system32\\drivers\\etc\\System.exe"	taskmgr.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\UpdaterStartupUtility = "C:\\Windows\\system32\\drivers\\etc\\System.exe"	taskmgr.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/4120-9-0x0000000000400000-0x0000000000582000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4120 set thread context of 1008	4120	JaffaCakes118_8c8b32e34654515fdb07baeb6548e8cd.exe	82
PID 1008 set thread context of 3320	1008	JaffaCakes118_8c8b32e34654515fdb07baeb6548e8cd.exe	83

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1008-1-0x0000000000400000-0x0000000000415000-memory.dmp	upx
behavioral2/memory/1008-3-0x0000000000400000-0x0000000000415000-memory.dmp	upx
behavioral2/memory/1008-5-0x0000000000400000-0x0000000000415000-memory.dmp	upx
behavioral2/memory/3320-11-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1008-16-0x0000000000400000-0x0000000000415000-memory.dmp	upx
behavioral2/memory/3320-14-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3320-17-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3256-18-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2636-19-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2636-21-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3256-22-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2636-23-0x0000000010000000-0x000000001004D000-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
1608	3256	WerFault.exe	84
2980	3256	WerFault.exe	84
3744	2636	WerFault.exe	85
4280	2636	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	JaffaCakes118_8c8b32e34654515fdb07baeb6548e8cd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_8c8b32e34654515fdb07baeb6548e8cd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_8c8b32e34654515fdb07baeb6548e8cd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskmgr.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1008	JaffaCakes118_8c8b32e34654515fdb07baeb6548e8cd.exe
2636	taskmgr.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 4120 wrote to memory of 1008	4120	JaffaCakes118_8c8b32e34654515fdb07baeb6548e8cd.exe	82
PID 4120 wrote to memory of 1008	4120	JaffaCakes118_8c8b32e34654515fdb07baeb6548e8cd.exe	82
PID 4120 wrote to memory of 1008	4120	JaffaCakes118_8c8b32e34654515fdb07baeb6548e8cd.exe	82
PID 4120 wrote to memory of 1008	4120	JaffaCakes118_8c8b32e34654515fdb07baeb6548e8cd.exe	82
PID 4120 wrote to memory of 1008	4120	JaffaCakes118_8c8b32e34654515fdb07baeb6548e8cd.exe	82
PID 4120 wrote to memory of 1008	4120	JaffaCakes118_8c8b32e34654515fdb07baeb6548e8cd.exe	82
PID 1008 wrote to memory of 3320	1008	JaffaCakes118_8c8b32e34654515fdb07baeb6548e8cd.exe	83
PID 1008 wrote to memory of 3320	1008	JaffaCakes118_8c8b32e34654515fdb07baeb6548e8cd.exe	83
PID 1008 wrote to memory of 3320	1008	JaffaCakes118_8c8b32e34654515fdb07baeb6548e8cd.exe	83
PID 1008 wrote to memory of 3320	1008	JaffaCakes118_8c8b32e34654515fdb07baeb6548e8cd.exe	83
PID 1008 wrote to memory of 3320	1008	JaffaCakes118_8c8b32e34654515fdb07baeb6548e8cd.exe	83
PID 1008 wrote to memory of 3320	1008	JaffaCakes118_8c8b32e34654515fdb07baeb6548e8cd.exe	83
PID 1008 wrote to memory of 3320	1008	JaffaCakes118_8c8b32e34654515fdb07baeb6548e8cd.exe	83
PID 1008 wrote to memory of 3320	1008	JaffaCakes118_8c8b32e34654515fdb07baeb6548e8cd.exe	83
PID 3320 wrote to memory of 3256	3320	JaffaCakes118_8c8b32e34654515fdb07baeb6548e8cd.exe	84
PID 3320 wrote to memory of 3256	3320	JaffaCakes118_8c8b32e34654515fdb07baeb6548e8cd.exe	84
PID 3320 wrote to memory of 3256	3320	JaffaCakes118_8c8b32e34654515fdb07baeb6548e8cd.exe	84
PID 3320 wrote to memory of 3256	3320	JaffaCakes118_8c8b32e34654515fdb07baeb6548e8cd.exe	84
PID 3320 wrote to memory of 2636	3320	JaffaCakes118_8c8b32e34654515fdb07baeb6548e8cd.exe	85
PID 3320 wrote to memory of 2636	3320	JaffaCakes118_8c8b32e34654515fdb07baeb6548e8cd.exe	85
PID 3320 wrote to memory of 2636	3320	JaffaCakes118_8c8b32e34654515fdb07baeb6548e8cd.exe	85
PID 3320 wrote to memory of 2636	3320	JaffaCakes118_8c8b32e34654515fdb07baeb6548e8cd.exe	85

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8c8b32e34654515fdb07baeb6548e8cd.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8c8b32e34654515fdb07baeb6548e8cd.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4120
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8c8b32e34654515fdb07baeb6548e8cd.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8c8b32e34654515fdb07baeb6548e8cd.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1008
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8c8b32e34654515fdb07baeb6548e8cd.exe
    C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8c8b32e34654515fdb07baeb6548e8cd.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3320
  - - C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      4⤵
      System Location Discovery: System Language Discovery
      PID:3256
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3256 -s 480
        5⤵
        Program crash
        
        PID:1608
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3256 -s 504
        5⤵
        Program crash
        
        PID:2980
  - - 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:2636
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2636 -s 1080
        5⤵
        Program crash
        
        PID:3744
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2636 -s 1100
        5⤵
        Program crash
        
        PID:4280

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3256 -ip 3256
1⤵
PID:4540

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3256 -ip 3256
1⤵
PID:740

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2636 -ip 2636
1⤵
PID:1772

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2636 -ip 2636
1⤵
PID:3004

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/1008-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1008-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1008-5-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1008-1-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2636-23-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2636-19-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2636-21-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3256-22-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3256-18-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3320-14-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3320-11-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3320-17-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4120-9-0x0000000000400000-0x0000000000582000-memory.dmp

Filesize
1.5MB

Download
memory/4120-0-0x0000000000400000-0x0000000000582000-memory.dmp

Filesize
1.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads