xtremerat | 0bf75b6af60bde7176086ea858839438107b1003abee75ca9147c18ae051dba9

General

Target

4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.exe
Size

376KB
MD5

4c57a5e6cbf6cbc43c82288095ab25f7
SHA1

315f000243f72150212d868ac230bd97ab449092
SHA256

0bf75b6af60bde7176086ea858839438107b1003abee75ca9147c18ae051dba9
SHA512

9018978e103b9cd7e9d7fcfd5e8aa8275eebc4213636d74fddb4732f51fb55ae7cb34857e48cdb2676ae2cb44e1e1ea5d4aead8c3fb0507469224787d647105e
SSDEEP

6144:aAc1GXZ6i4Hh2vvpRfRPiMquUq0P99A+vCmEfHVK+TPBMQ/0T20apI4PJ0RO7mD:41Ggi4B2vrNilvqu9OsCmEvVHTPBMa0n

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 4 IoCs

resource	yara_rule
behavioral2/memory/2284-8-0x0000000000C80000-0x0000000000D31000-memory.dmp	family_xtremerat
behavioral2/memory/4044-13-0x0000000000C80000-0x0000000000D31000-memory.dmp	family_xtremerat
behavioral2/memory/2284-14-0x0000000000C80000-0x0000000000D31000-memory.dmp	family_xtremerat
behavioral2/memory/4044-16-0x0000000000C80000-0x0000000000D31000-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
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{VJ03R73P-QO81-D5TO-P82V-626S8DQ87128}	4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{VJ03R73P-QO81-D5TO-P82V-626S8DQ87128}\StubPath = "C:\\Windows\\InstallDir\\Server.exe restart"	4c57a5e6cbf6cbc43c82288095ab25f7_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\HKLM = "C:\\Windows\\InstallDir\\Server.exe"	4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe"	4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.EXE

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 448 set thread context of 2284	448	4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.exe	92

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2284-3-0x0000000000C80000-0x0000000000D31000-memory.dmp	upx
behavioral2/memory/2284-7-0x0000000000C80000-0x0000000000D31000-memory.dmp	upx
behavioral2/memory/2284-9-0x0000000000C80000-0x0000000000D31000-memory.dmp	upx
behavioral2/memory/2284-8-0x0000000000C80000-0x0000000000D31000-memory.dmp	upx
behavioral2/memory/4044-13-0x0000000000C80000-0x0000000000D31000-memory.dmp	upx
behavioral2/memory/2284-14-0x0000000000C80000-0x0000000000D31000-memory.dmp	upx
behavioral2/memory/4044-16-0x0000000000C80000-0x0000000000D31000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\InstallDir\Server.exe	4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.EXE
File created	C:\Windows\InstallDir\Server.exe	4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.EXE

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1748	448	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	4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
448	4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.exe
4044	svchost.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 448 wrote to memory of 2284	448	4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.exe	92
PID 448 wrote to memory of 2284	448	4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.exe	92
PID 448 wrote to memory of 2284	448	4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.exe	92
PID 448 wrote to memory of 2284	448	4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.exe	92
PID 448 wrote to memory of 2284	448	4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.exe	92
PID 448 wrote to memory of 2284	448	4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.exe	92
PID 448 wrote to memory of 2284	448	4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.exe	92
PID 448 wrote to memory of 2284	448	4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.exe	92
PID 2284 wrote to memory of 4044	2284	4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.EXE	93
PID 2284 wrote to memory of 4044	2284	4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.EXE	93
PID 2284 wrote to memory of 4044	2284	4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.EXE	93
PID 2284 wrote to memory of 4044	2284	4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.EXE	93

C:\Users\Admin\AppData\Local\Temp\4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:448
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 448 -s 404
  2⤵
  - Program crash
  PID:1748
- C:\Users\Admin\AppData\Local\Temp\4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.EXE
  "C:\Users\Admin\AppData\Local\Temp\4c57a5e6cbf6cbc43c82288095ab25f7_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 WriteProcessMemory
  PID:2284
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:4044

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 448 -ip 448
1⤵
PID:4120

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/448-0-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/448-6-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/2284-3-0x0000000000C80000-0x0000000000D31000-memory.dmp

Filesize
708KB

Download
memory/2284-7-0x0000000000C80000-0x0000000000D31000-memory.dmp

Filesize
708KB

Download
memory/2284-9-0x0000000000C80000-0x0000000000D31000-memory.dmp

Filesize
708KB

Download
memory/2284-8-0x0000000000C80000-0x0000000000D31000-memory.dmp

Filesize
708KB

Download
memory/2284-14-0x0000000000C80000-0x0000000000D31000-memory.dmp

Filesize
708KB

Download
memory/4044-13-0x0000000000C80000-0x0000000000D31000-memory.dmp

Filesize
708KB

Download
memory/4044-16-0x0000000000C80000-0x0000000000D31000-memory.dmp

Filesize
708KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads