xtremerat | c9f499fb4b8e30669c51e80f2ebe98a6686ccd54069066b74dd9f1a0e9eb01c6

General

Target

611c584afb9218c85e2a72c9aa87dd1c_JaffaCakes118.exe
Size

21KB
MD5

611c584afb9218c85e2a72c9aa87dd1c
SHA1

0cdf8f22a99f96075c38ce5bfdcd6a44757d6f4a
SHA256

c9f499fb4b8e30669c51e80f2ebe98a6686ccd54069066b74dd9f1a0e9eb01c6
SHA512

54eb49b345dda2e267babaf1d1a15fc0b55e28be47c3e2d6a2cb40fbba1c7d77b6db44e4e6869c2a532092c90093ed8c0c8f2f205b61a7a2879204e830d0d92f
SSDEEP

384:AIdmF+TH95xJMu/0PlxjV8BINhuLJ37tMOpuqqz3KK7eIVmiM1QdaKxqEpLR:AIsF8HdbKjV8BX7Vy6K7eIVTAQdSE

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

uranio.no-ip.biz

Signatures

Detect XtremeRAT payload 4 IoCs

resource	yara_rule
behavioral1/memory/2440-9-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral1/memory/2212-13-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral1/memory/1720-14-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral1/memory/2212-16-0x0000000000C80000-0x0000000000C96000-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 4 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\{38286BB0-8I56-I4O4-LC45-S8BN78Q065E6}	611c584afb9218c85e2a72c9aa87dd1c_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{38286BB0-8I56-I4O4-LC45-S8BN78Q065E6}\StubPath = "C:\\Windows\\InstallDir\\Server.exe restart"	611c584afb9218c85e2a72c9aa87dd1c_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{38286BB0-8I56-I4O4-LC45-S8BN78Q065E6}	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{38286BB0-8I56-I4O4-LC45-S8BN78Q065E6}\StubPath = "C:\\Windows\\InstallDir\\Server.exe restart"	svchost.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\ = "C:\\Windows\\InstallDir\\Server.exe"	611c584afb9218c85e2a72c9aa87dd1c_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\InstallDir\\Server.exe"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\ = "C:\\Windows\\InstallDir\\Server.exe"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\InstallDir\\Server.exe"	611c584afb9218c85e2a72c9aa87dd1c_JaffaCakes118.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1720-0-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/2440-9-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/files/0x000e00000001866e-10.dat	upx
behavioral1/memory/2212-13-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/1720-14-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/2212-16-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\InstallDir\Server.exe	611c584afb9218c85e2a72c9aa87dd1c_JaffaCakes118.exe
File created	C:\Windows\InstallDir\Server.exe	611c584afb9218c85e2a72c9aa87dd1c_JaffaCakes118.exe
File opened for modification	C:\Windows\InstallDir\	611c584afb9218c85e2a72c9aa87dd1c_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	611c584afb9218c85e2a72c9aa87dd1c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2212	explorer.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1720 wrote to memory of 2440	1720	611c584afb9218c85e2a72c9aa87dd1c_JaffaCakes118.exe	31
PID 1720 wrote to memory of 2440	1720	611c584afb9218c85e2a72c9aa87dd1c_JaffaCakes118.exe	31
PID 1720 wrote to memory of 2440	1720	611c584afb9218c85e2a72c9aa87dd1c_JaffaCakes118.exe	31
PID 1720 wrote to memory of 2440	1720	611c584afb9218c85e2a72c9aa87dd1c_JaffaCakes118.exe	31
PID 1720 wrote to memory of 2440	1720	611c584afb9218c85e2a72c9aa87dd1c_JaffaCakes118.exe	31
PID 1720 wrote to memory of 1424	1720	611c584afb9218c85e2a72c9aa87dd1c_JaffaCakes118.exe	32
PID 1720 wrote to memory of 1424	1720	611c584afb9218c85e2a72c9aa87dd1c_JaffaCakes118.exe	32
PID 1720 wrote to memory of 1424	1720	611c584afb9218c85e2a72c9aa87dd1c_JaffaCakes118.exe	32
PID 1720 wrote to memory of 1424	1720	611c584afb9218c85e2a72c9aa87dd1c_JaffaCakes118.exe	32
PID 1720 wrote to memory of 2212	1720	611c584afb9218c85e2a72c9aa87dd1c_JaffaCakes118.exe	33
PID 1720 wrote to memory of 2212	1720	611c584afb9218c85e2a72c9aa87dd1c_JaffaCakes118.exe	33
PID 1720 wrote to memory of 2212	1720	611c584afb9218c85e2a72c9aa87dd1c_JaffaCakes118.exe	33
PID 1720 wrote to memory of 2212	1720	611c584afb9218c85e2a72c9aa87dd1c_JaffaCakes118.exe	33
PID 1720 wrote to memory of 2212	1720	611c584afb9218c85e2a72c9aa87dd1c_JaffaCakes118.exe	33

C:\Users\Admin\AppData\Local\Temp\611c584afb9218c85e2a72c9aa87dd1c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\611c584afb9218c85e2a72c9aa87dd1c_JaffaCakes118.exe"
1⤵
- 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:1720
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Boot or Logon Autostart Execution: Active Setup
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  PID:2440
- C:\Program Files\Internet Explorer\iexplore.exe
  "C:\Program Files\Internet Explorer\iexplore.exe"
  2⤵
  PID:1424
- C:\Windows\SysWOW64\explorer.exe
  explorer.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2212

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

Loading Replay Monitor...

Downloads

C:\Windows\InstallDir\Server.exe

Filesize
21KB

MD5
611c584afb9218c85e2a72c9aa87dd1c

SHA1
0cdf8f22a99f96075c38ce5bfdcd6a44757d6f4a

SHA256
c9f499fb4b8e30669c51e80f2ebe98a6686ccd54069066b74dd9f1a0e9eb01c6

SHA512
54eb49b345dda2e267babaf1d1a15fc0b55e28be47c3e2d6a2cb40fbba1c7d77b6db44e4e6869c2a532092c90093ed8c0c8f2f205b61a7a2879204e830d0d92f

Download Submit
memory/1720-0-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/1720-14-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2212-13-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2212-16-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2440-8-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2440-9-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads