xtremerat | 22e1a12e81de9af68abc0dfc9297db0d4e85ba89cda1b3f09e861bc16653c671

General

Target

JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe
Size

280KB
MD5

a4e6731d6dfb5fc2aec67f948531f2a3
SHA1

2547612b3e99595ec3f781b3f4330e1984187d4b
SHA256

22e1a12e81de9af68abc0dfc9297db0d4e85ba89cda1b3f09e861bc16653c671
SHA512

9fa8b8c691a1346eac3cd07307eed1956ed1dc44952bd48a2a16e515f88d4cd40fa2f867bb954645a4c848a587c203b0192dfde91a8f49f18ecd771ac2fffa3c
SSDEEP

6144:oBfoRaU6E0ugM1Mc+2Pn81iJt2+/XNgjDMr1gkaAO/74+:omV6EgM1pP81it2+/dcDMreky7N

Score

10^/10

xtremerat discovery persistence rat spyware

Malware Config

Extracted

Family

xtremerat

C2

Ɛᮽ唅∛i2lb.sytes.net

Signatures

Detect XtremeRAT payload 11 IoCs

resource	yara_rule
behavioral2/memory/640-22-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/640-21-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/640-23-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/640-24-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/3684-25-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/640-28-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/640-29-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/3684-30-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/640-32-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/640-35-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/640-36-0x0000000010000000-0x0000000010048000-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\{6Y56NH88-HDMS-EI1O-2MI3-UTR2574AO5UQ}	JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{6Y56NH88-HDMS-EI1O-2MI3-UTR2574AO5UQ}\StubPath = "C:\\Windows\\system32\\paltalk.exe restart"	JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.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\paltalk = "C:\\Windows\\system32\\paltalk.exe"	JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\paltalk = "C:\\Windows\\system32\\paltalk.exe"	JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\	JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe
File created	C:\Windows\SysWOW64\Unit-K.dll	JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe
File opened for modification	C:\Windows\SysWOW64\Unit-K.dll	JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe
File created	C:\Windows\SysWOW64\Unit-W.dll	JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe
File opened for modification	C:\Windows\SysWOW64\paltalk.exe	JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe
File created	C:\Windows\SysWOW64\paltalk.exe	JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1964 set thread context of 5080	1964	JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe	82
PID 5080 set thread context of 640	5080	JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe	83

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
4020	3684	WerFault.exe	84
2880	3684	WerFault.exe	84

System Location Discovery: System Language Discovery 1 TTPs 4 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_a4e6731d6dfb5fc2aec67f948531f2a3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5080	JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe
640	JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 1964 wrote to memory of 5080	1964	JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe	82
PID 1964 wrote to memory of 5080	1964	JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe	82
PID 1964 wrote to memory of 5080	1964	JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe	82
PID 1964 wrote to memory of 5080	1964	JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe	82
PID 1964 wrote to memory of 5080	1964	JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe	82
PID 5080 wrote to memory of 640	5080	JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe	83
PID 5080 wrote to memory of 640	5080	JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe	83
PID 5080 wrote to memory of 640	5080	JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe	83
PID 5080 wrote to memory of 640	5080	JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe	83
PID 5080 wrote to memory of 640	5080	JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe	83
PID 5080 wrote to memory of 640	5080	JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe	83
PID 5080 wrote to memory of 640	5080	JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe	83
PID 5080 wrote to memory of 640	5080	JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe	83
PID 5080 wrote to memory of 640	5080	JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe	83
PID 5080 wrote to memory of 640	5080	JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe	83
PID 5080 wrote to memory of 640	5080	JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe	83
PID 5080 wrote to memory of 640	5080	JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe	83
PID 5080 wrote to memory of 640	5080	JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe	83
PID 640 wrote to memory of 3684	640	JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe	84
PID 640 wrote to memory of 3684	640	JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe	84
PID 640 wrote to memory of 3684	640	JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe	84
PID 640 wrote to memory of 3684	640	JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe	84

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1964
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:5080
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe
    C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a4e6731d6dfb5fc2aec67f948531f2a3.exe
    3⤵
    - Boot or Logon Autostart Execution: Active Setup
    - Adds Run key to start application
    - Drops file in System32 directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:640
  - - C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      4⤵
      System Location Discovery: System Language Discovery
      PID:3684
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3684 -s 484
        5⤵
        Program crash
        
        PID:4020
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3684 -s 492
        5⤵
        Program crash
        
        PID:2880

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3684 -ip 3684
1⤵
PID:4052

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 3684 -ip 3684
1⤵
PID:3872

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/640-21-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/640-28-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/640-24-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/640-32-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/640-29-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/640-36-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/640-35-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/640-23-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/640-22-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/1964-4-0x0000000010000000-0x0000000010046000-memory.dmp

Filesize
280KB

Download
memory/1964-17-0x0000000010001000-0x0000000010042000-memory.dmp

Filesize
260KB

Download
memory/1964-3-0x0000000010000000-0x0000000010046000-memory.dmp

Filesize
280KB

Download
memory/1964-15-0x0000000010000000-0x0000000010046000-memory.dmp

Filesize
280KB

Download
memory/1964-2-0x0000000010000000-0x0000000010046000-memory.dmp

Filesize
280KB

Download
memory/1964-31-0x0000000010000000-0x0000000010046000-memory.dmp

Filesize
280KB

Download
memory/1964-1-0x0000000010000000-0x0000000010046000-memory.dmp

Filesize
280KB

Download
memory/1964-0-0x0000000010001000-0x0000000010003000-memory.dmp

Filesize
8KB

Download
memory/3684-25-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/3684-30-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/5080-8-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/5080-16-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/5080-18-0x0000000010000000-0x0000000010046000-memory.dmp

Filesize
280KB

Download
memory/5080-13-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads