xtremerat | d58e557ce89a51c6bd96f7ff70023bd97a325c2002a3c673db5b0363f5b768ed

General

Target

8fcd8ad54d820abaa2f03117be36fcfe_JaffaCakes118.exe
Size

129KB
MD5

8fcd8ad54d820abaa2f03117be36fcfe
SHA1

7ca59be2c93e6932f489fbf2b255ff3ceb671fa3
SHA256

d58e557ce89a51c6bd96f7ff70023bd97a325c2002a3c673db5b0363f5b768ed
SHA512

3db8cb6973f45ed01377586c8b538bcd6327f5c277cca5856fca615aa9b3a8b708ad6c641c508af8c191deb6b107e0ad4339f43b42f36b3fb2978ace1205f7be
SSDEEP

1536:EX8QDsLdObMYxglxeWDxkwT8U7F0NfQpi7MFiw/kQPc74ivtZc0SBRmvjTY7j3gv:EUsMYExeqxkwTVUw/kQPcknzf9B6Mj+z

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

sfftclk1.no-ip.org

Signatures

Detect XtremeRAT payload 9 IoCs

resource	yara_rule
behavioral2/memory/3912-7-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3912-8-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4700-9-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3912-11-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3952-10-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3952-13-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3952-14-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4700-16-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3952-17-0x0000000010000000-0x000000001004D000-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\{3NS46P07-73IK-O1Q3-B3K1-TGQJQ26GUPG0}	calc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{3NS46P07-73IK-O1Q3-B3K1-TGQJQ26GUPG0}\StubPath = "C:\\Program Files (x86)\\microsftt\\chrmme.exe restart"	calc.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:\\Program Files (x86)\\microsftt\\chrmme.exe"	calc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "%CHRME%"	calc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1028 set thread context of 3912	1028	8fcd8ad54d820abaa2f03117be36fcfe_JaffaCakes118.exe	85

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3912-5-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3912-6-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3912-7-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3912-8-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4700-9-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3912-11-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3952-10-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3952-13-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3952-14-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4700-16-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3952-17-0x0000000010000000-0x000000001004D000-memory.dmp	upx

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\microsftt\chrmme.exe	calc.exe
File created	C:\Program Files (x86)\microsftt\chrmme.exe	calc.exe

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

System Information Discovery
T1082

Program crash 4 IoCs

pid	pid_target	Process	procid_target
4760	4700	WerFault.exe	86
2972	3952	WerFault.exe	87
4056	4700	WerFault.exe	86
4900	3952	WerFault.exe	87

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	8fcd8ad54d820abaa2f03117be36fcfe_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8fcd8ad54d820abaa2f03117be36fcfe_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	calc.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1028	8fcd8ad54d820abaa2f03117be36fcfe_JaffaCakes118.exe
3952	calc.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1028 wrote to memory of 3912	1028	8fcd8ad54d820abaa2f03117be36fcfe_JaffaCakes118.exe	85
PID 1028 wrote to memory of 3912	1028	8fcd8ad54d820abaa2f03117be36fcfe_JaffaCakes118.exe	85
PID 1028 wrote to memory of 3912	1028	8fcd8ad54d820abaa2f03117be36fcfe_JaffaCakes118.exe	85
PID 1028 wrote to memory of 3912	1028	8fcd8ad54d820abaa2f03117be36fcfe_JaffaCakes118.exe	85
PID 1028 wrote to memory of 3912	1028	8fcd8ad54d820abaa2f03117be36fcfe_JaffaCakes118.exe	85
PID 1028 wrote to memory of 3912	1028	8fcd8ad54d820abaa2f03117be36fcfe_JaffaCakes118.exe	85
PID 1028 wrote to memory of 3912	1028	8fcd8ad54d820abaa2f03117be36fcfe_JaffaCakes118.exe	85
PID 1028 wrote to memory of 3912	1028	8fcd8ad54d820abaa2f03117be36fcfe_JaffaCakes118.exe	85
PID 3912 wrote to memory of 4700	3912	8fcd8ad54d820abaa2f03117be36fcfe_JaffaCakes118.exe	86
PID 3912 wrote to memory of 4700	3912	8fcd8ad54d820abaa2f03117be36fcfe_JaffaCakes118.exe	86
PID 3912 wrote to memory of 4700	3912	8fcd8ad54d820abaa2f03117be36fcfe_JaffaCakes118.exe	86
PID 3912 wrote to memory of 4700	3912	8fcd8ad54d820abaa2f03117be36fcfe_JaffaCakes118.exe	86
PID 3912 wrote to memory of 3952	3912	8fcd8ad54d820abaa2f03117be36fcfe_JaffaCakes118.exe	87
PID 3912 wrote to memory of 3952	3912	8fcd8ad54d820abaa2f03117be36fcfe_JaffaCakes118.exe	87
PID 3912 wrote to memory of 3952	3912	8fcd8ad54d820abaa2f03117be36fcfe_JaffaCakes118.exe	87
PID 3912 wrote to memory of 3952	3912	8fcd8ad54d820abaa2f03117be36fcfe_JaffaCakes118.exe	87

C:\Users\Admin\AppData\Local\Temp\8fcd8ad54d820abaa2f03117be36fcfe_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8fcd8ad54d820abaa2f03117be36fcfe_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1028
- C:\Users\Admin\AppData\Local\Temp\8fcd8ad54d820abaa2f03117be36fcfe_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\8fcd8ad54d820abaa2f03117be36fcfe_JaffaCakes118.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3912
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4700
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4700 -s 480
      4⤵
      Program crash
      PID:4760
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4700 -s 488
      4⤵
      Program crash
      PID:4056
- - C:\Windows\SysWOW64\calc.exe
    calc.exe
    3⤵
    - Boot or Logon Autostart Execution: Active Setup
    - Adds Run key to start application
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:3952
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3952 -s 984
      4⤵
      Program crash
      PID:2972
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3952 -s 992
      4⤵
      Program crash
      PID:4900

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4700 -ip 4700
1⤵
PID:552

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3952 -ip 3952
1⤵
PID:2272

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 4700 -ip 4700
1⤵
PID:4716

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3952 -ip 3952
1⤵
PID:1676

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/3912-5-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3912-6-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3912-7-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3912-8-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3912-11-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3952-10-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3952-13-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3952-14-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3952-17-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4700-9-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4700-16-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads