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
behavioral1/memory/2328-14-0x0000000000C80000-0x0000000000D31000-memory.dmp	family_xtremerat
behavioral1/memory/2800-20-0x0000000000C80000-0x0000000000D31000-memory.dmp	family_xtremerat
behavioral1/memory/2328-21-0x0000000000C80000-0x0000000000D31000-memory.dmp	family_xtremerat
behavioral1/memory/2800-23-0x0000000000C80000-0x0000000000D31000-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-1-5-21-2872745919-2748461613-2989606286-1000\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 1640 set thread context of 2328	1640	4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.exe	30

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2328-4-0x0000000000C80000-0x0000000000D31000-memory.dmp	upx
behavioral1/memory/2328-8-0x0000000000C80000-0x0000000000D31000-memory.dmp	upx
behavioral1/memory/2328-14-0x0000000000C80000-0x0000000000D31000-memory.dmp	upx
behavioral1/memory/2328-12-0x0000000000C80000-0x0000000000D31000-memory.dmp	upx
behavioral1/memory/2328-5-0x0000000000C80000-0x0000000000D31000-memory.dmp	upx
behavioral1/memory/2800-20-0x0000000000C80000-0x0000000000D31000-memory.dmp	upx
behavioral1/memory/2328-21-0x0000000000C80000-0x0000000000D31000-memory.dmp	upx
behavioral1/memory/2800-23-0x0000000000C80000-0x0000000000D31000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

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

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
1640	4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.exe
2800	svchost.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1640 wrote to memory of 2328	1640	4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.exe	30
PID 1640 wrote to memory of 2328	1640	4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.exe	30
PID 1640 wrote to memory of 2328	1640	4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.exe	30
PID 1640 wrote to memory of 2328	1640	4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.exe	30
PID 1640 wrote to memory of 2328	1640	4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.exe	30
PID 1640 wrote to memory of 2328	1640	4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.exe	30
PID 1640 wrote to memory of 2328	1640	4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.exe	30
PID 1640 wrote to memory of 2328	1640	4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.exe	30
PID 2328 wrote to memory of 2800	2328	4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.EXE	31
PID 2328 wrote to memory of 2800	2328	4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.EXE	31
PID 2328 wrote to memory of 2800	2328	4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.EXE	31
PID 2328 wrote to memory of 2800	2328	4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.EXE	31
PID 2328 wrote to memory of 2800	2328	4c57a5e6cbf6cbc43c82288095ab25f7_JaffaCakes118.EXE	31

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:1640
- 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:2328
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:2800

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

Replay Monitor

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Downloads

memory/1640-0-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/1640-11-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/2328-3-0x0000000000C80000-0x0000000000D31000-memory.dmp

Filesize
708KB

Download
memory/2328-4-0x0000000000C80000-0x0000000000D31000-memory.dmp

Filesize
708KB

Download
memory/2328-8-0x0000000000C80000-0x0000000000D31000-memory.dmp

Filesize
708KB

Download
memory/2328-14-0x0000000000C80000-0x0000000000D31000-memory.dmp

Filesize
708KB

Download
memory/2328-12-0x0000000000C80000-0x0000000000D31000-memory.dmp

Filesize
708KB

Download
memory/2328-6-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2328-5-0x0000000000C80000-0x0000000000D31000-memory.dmp

Filesize
708KB

Download
memory/2328-21-0x0000000000C80000-0x0000000000D31000-memory.dmp

Filesize
708KB

Download
memory/2800-20-0x0000000000C80000-0x0000000000D31000-memory.dmp

Filesize
708KB

Download
memory/2800-23-0x0000000000C80000-0x0000000000D31000-memory.dmp

Filesize
708KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads