xtremerat | 578e1eb88767f9e8385c4ae01896137024e5899c76df776a3b619aa975098cdf

General

Target

JaffaCakes118_8daac9dd60e73267a6810bbd6dc869f6.exe
Size

161KB
MD5

8daac9dd60e73267a6810bbd6dc869f6
SHA1

09ad4d9124bd1e60f5b8db4ab5ab234a9e9d8e8c
SHA256

578e1eb88767f9e8385c4ae01896137024e5899c76df776a3b619aa975098cdf
SHA512

75a13039a8780b4b3935a2acd2829af98ae9cf51a3811bc8bd317c493065d1e8261cff28080e2b34a65e254c1ad12b0c7bab8d3029af7e4bc83bcbde4d7f9f6f
SSDEEP

3072:tPvfMxLMQYCozcM1EYTlE9CADzHE3twS/VNLMVuf4JAT1R8lEz+/7uf9NIgkr:NgToAM1lpE9pDIdwiZMn41yEz+Q9n

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 7 IoCs

resource	yara_rule
behavioral2/memory/228-3-0x0000000010000000-0x0000000010047000-memory.dmp	family_xtremerat
behavioral2/memory/228-4-0x0000000010000000-0x0000000010047000-memory.dmp	family_xtremerat
behavioral2/memory/228-5-0x0000000010000000-0x0000000010047000-memory.dmp	family_xtremerat
behavioral2/memory/228-7-0x0000000010000000-0x0000000010047000-memory.dmp	family_xtremerat
behavioral2/memory/1932-9-0x0000000010000000-0x0000000010047000-memory.dmp	family_xtremerat
behavioral2/memory/228-10-0x0000000010000000-0x0000000010047000-memory.dmp	family_xtremerat
behavioral2/memory/1932-11-0x0000000010000000-0x0000000010047000-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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4204 set thread context of 228	4204	JaffaCakes118_8daac9dd60e73267a6810bbd6dc869f6.exe	82

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4204-0-0x0000000000400000-0x000000000052B000-memory.dmp	upx
behavioral2/memory/4204-8-0x0000000000400000-0x000000000052B000-memory.dmp	upx

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
2864	1932	WerFault.exe	83
2528	1932	WerFault.exe	83

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_8daac9dd60e73267a6810bbd6dc869f6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_8daac9dd60e73267a6810bbd6dc869f6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4204	JaffaCakes118_8daac9dd60e73267a6810bbd6dc869f6.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 4204 wrote to memory of 228	4204	JaffaCakes118_8daac9dd60e73267a6810bbd6dc869f6.exe	82
PID 4204 wrote to memory of 228	4204	JaffaCakes118_8daac9dd60e73267a6810bbd6dc869f6.exe	82
PID 4204 wrote to memory of 228	4204	JaffaCakes118_8daac9dd60e73267a6810bbd6dc869f6.exe	82
PID 4204 wrote to memory of 228	4204	JaffaCakes118_8daac9dd60e73267a6810bbd6dc869f6.exe	82
PID 4204 wrote to memory of 228	4204	JaffaCakes118_8daac9dd60e73267a6810bbd6dc869f6.exe	82
PID 4204 wrote to memory of 228	4204	JaffaCakes118_8daac9dd60e73267a6810bbd6dc869f6.exe	82
PID 4204 wrote to memory of 228	4204	JaffaCakes118_8daac9dd60e73267a6810bbd6dc869f6.exe	82
PID 4204 wrote to memory of 228	4204	JaffaCakes118_8daac9dd60e73267a6810bbd6dc869f6.exe	82
PID 4204 wrote to memory of 228	4204	JaffaCakes118_8daac9dd60e73267a6810bbd6dc869f6.exe	82
PID 4204 wrote to memory of 228	4204	JaffaCakes118_8daac9dd60e73267a6810bbd6dc869f6.exe	82
PID 4204 wrote to memory of 228	4204	JaffaCakes118_8daac9dd60e73267a6810bbd6dc869f6.exe	82
PID 4204 wrote to memory of 228	4204	JaffaCakes118_8daac9dd60e73267a6810bbd6dc869f6.exe	82
PID 4204 wrote to memory of 228	4204	JaffaCakes118_8daac9dd60e73267a6810bbd6dc869f6.exe	82
PID 228 wrote to memory of 1932	228	JaffaCakes118_8daac9dd60e73267a6810bbd6dc869f6.exe	83
PID 228 wrote to memory of 1932	228	JaffaCakes118_8daac9dd60e73267a6810bbd6dc869f6.exe	83
PID 228 wrote to memory of 1932	228	JaffaCakes118_8daac9dd60e73267a6810bbd6dc869f6.exe	83
PID 228 wrote to memory of 1932	228	JaffaCakes118_8daac9dd60e73267a6810bbd6dc869f6.exe	83
PID 228 wrote to memory of 5064	228	JaffaCakes118_8daac9dd60e73267a6810bbd6dc869f6.exe	84
PID 228 wrote to memory of 5064	228	JaffaCakes118_8daac9dd60e73267a6810bbd6dc869f6.exe	84
PID 228 wrote to memory of 5064	228	JaffaCakes118_8daac9dd60e73267a6810bbd6dc869f6.exe	84

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8daac9dd60e73267a6810bbd6dc869f6.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8daac9dd60e73267a6810bbd6dc869f6.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4204
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8daac9dd60e73267a6810bbd6dc869f6.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8daac9dd60e73267a6810bbd6dc869f6.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:228
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1932
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1932 -s 480
      4⤵
      Program crash
      PID:2864
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1932 -s 488
      4⤵
      Program crash
      PID:2528
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:5064

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1932 -ip 1932
1⤵
PID:3956

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 1932 -ip 1932
1⤵
PID:2432

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

Replay Monitor

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Downloads

memory/228-3-0x0000000010000000-0x0000000010047000-memory.dmp

Filesize
284KB

Download
memory/228-4-0x0000000010000000-0x0000000010047000-memory.dmp

Filesize
284KB

Download
memory/228-5-0x0000000010000000-0x0000000010047000-memory.dmp

Filesize
284KB

Download
memory/228-7-0x0000000010000000-0x0000000010047000-memory.dmp

Filesize
284KB

Download
memory/228-10-0x0000000010000000-0x0000000010047000-memory.dmp

Filesize
284KB

Download
memory/1932-9-0x0000000010000000-0x0000000010047000-memory.dmp

Filesize
284KB

Download
memory/1932-11-0x0000000010000000-0x0000000010047000-memory.dmp

Filesize
284KB

Download
memory/4204-0-0x0000000000400000-0x000000000052B000-memory.dmp

Filesize
1.2MB

Download
memory/4204-8-0x0000000000400000-0x000000000052B000-memory.dmp

Filesize
1.2MB

Download

Analysis

Sharing