xtremerat | fe6d6e3c993981a1fabb3e7f176e5c9323fcfdb2a01e50c18bd783b5a8805030

General

Target

b31efeddc7b1784ca1582974fab9bcb2_JaffaCakes118.exe
Size

308KB
MD5

b31efeddc7b1784ca1582974fab9bcb2
SHA1

c29ed70a495b37f9f7c87a6b21cb9cd6c2a665be
SHA256

fe6d6e3c993981a1fabb3e7f176e5c9323fcfdb2a01e50c18bd783b5a8805030
SHA512

bb0ae0aae32740260297f18d15764ce3f3d8a879b2a034cba7321bed7210340c2e798803a6595e4e0791b4d3b172189e78889b909dbcfc03c5fe9df1ae83b445
SSDEEP

6144:U54FXIbAwoeek+E/EqKHShOQVNAtu4ZFZmZFb+UDn0XdRSZw:U54IXleXEzSxLO+U7onS

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

wer99.no-ip.org

Signatures

Detect XtremeRAT payload 11 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2356-3-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2356-4-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2356-6-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2356-8-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2436-9-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2068-10-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2356-11-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2068-14-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2068-15-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2436-16-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2068-17-0x0000000010000000-0x000000001004A000-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

Processes:

notepad.exe

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{RS857443-262M-Q02S-5YU2-TAS16G4L54R1}	notepad.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{RS857443-262M-Q02S-5YU2-TAS16G4L54R1}\StubPath = "C:\\Program Files (x86)\\InstallDir\\Server.exe restart"	notepad.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

notepad.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Program Files (x86)\\InstallDir\\Server.exe"	notepad.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Program Files (x86)\\InstallDir\\Server.exe"	notepad.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

b31efeddc7b1784ca1582974fab9bcb2_JaffaCakes118.exe

description	pid	Process	procid_target
PID 2396 set thread context of 2356	2396	b31efeddc7b1784ca1582974fab9bcb2_JaffaCakes118.exe	82

UPX packed file 2 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/2396-0-0x0000000000400000-0x00000000004A2000-memory.dmp	upx
behavioral2/memory/2396-7-0x0000000000400000-0x00000000004A2000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

Processes:

notepad.exe

description	ioc	Process
File opened for modification	C:\Program Files (x86)\InstallDir\	notepad.exe
File opened for modification	C:\Program Files (x86)\InstallDir\Server.exe	notepad.exe
File created	C:\Program Files (x86)\InstallDir\Server.exe	notepad.exe

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

System Information Discovery
T1082

Program crash 4 IoCs

Processes:

WerFault.exeWerFault.exeWerFault.exeWerFault.exe

pid	pid_target	Process	procid_target
3888	2436	WerFault.exe	83
2684	2068	WerFault.exe	84
1988	2436	WerFault.exe	83
1468	2068	WerFault.exe	84

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

Processes:

b31efeddc7b1784ca1582974fab9bcb2_JaffaCakes118.exeb31efeddc7b1784ca1582974fab9bcb2_JaffaCakes118.EXEsvchost.exenotepad.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b31efeddc7b1784ca1582974fab9bcb2_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b31efeddc7b1784ca1582974fab9bcb2_JaffaCakes118.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

b31efeddc7b1784ca1582974fab9bcb2_JaffaCakes118.exenotepad.exe

pid	Process
2396	b31efeddc7b1784ca1582974fab9bcb2_JaffaCakes118.exe
2068	notepad.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

b31efeddc7b1784ca1582974fab9bcb2_JaffaCakes118.exeb31efeddc7b1784ca1582974fab9bcb2_JaffaCakes118.EXE

description	pid	Process	procid_target
PID 2396 wrote to memory of 2356	2396	b31efeddc7b1784ca1582974fab9bcb2_JaffaCakes118.exe	82
PID 2396 wrote to memory of 2356	2396	b31efeddc7b1784ca1582974fab9bcb2_JaffaCakes118.exe	82
PID 2396 wrote to memory of 2356	2396	b31efeddc7b1784ca1582974fab9bcb2_JaffaCakes118.exe	82
PID 2396 wrote to memory of 2356	2396	b31efeddc7b1784ca1582974fab9bcb2_JaffaCakes118.exe	82
PID 2396 wrote to memory of 2356	2396	b31efeddc7b1784ca1582974fab9bcb2_JaffaCakes118.exe	82
PID 2396 wrote to memory of 2356	2396	b31efeddc7b1784ca1582974fab9bcb2_JaffaCakes118.exe	82
PID 2396 wrote to memory of 2356	2396	b31efeddc7b1784ca1582974fab9bcb2_JaffaCakes118.exe	82
PID 2396 wrote to memory of 2356	2396	b31efeddc7b1784ca1582974fab9bcb2_JaffaCakes118.exe	82
PID 2396 wrote to memory of 2356	2396	b31efeddc7b1784ca1582974fab9bcb2_JaffaCakes118.exe	82
PID 2396 wrote to memory of 2356	2396	b31efeddc7b1784ca1582974fab9bcb2_JaffaCakes118.exe	82
PID 2396 wrote to memory of 2356	2396	b31efeddc7b1784ca1582974fab9bcb2_JaffaCakes118.exe	82
PID 2396 wrote to memory of 2356	2396	b31efeddc7b1784ca1582974fab9bcb2_JaffaCakes118.exe	82
PID 2396 wrote to memory of 2356	2396	b31efeddc7b1784ca1582974fab9bcb2_JaffaCakes118.exe	82
PID 2356 wrote to memory of 2436	2356	b31efeddc7b1784ca1582974fab9bcb2_JaffaCakes118.EXE	83
PID 2356 wrote to memory of 2436	2356	b31efeddc7b1784ca1582974fab9bcb2_JaffaCakes118.EXE	83
PID 2356 wrote to memory of 2436	2356	b31efeddc7b1784ca1582974fab9bcb2_JaffaCakes118.EXE	83
PID 2356 wrote to memory of 2436	2356	b31efeddc7b1784ca1582974fab9bcb2_JaffaCakes118.EXE	83
PID 2356 wrote to memory of 2068	2356	b31efeddc7b1784ca1582974fab9bcb2_JaffaCakes118.EXE	84
PID 2356 wrote to memory of 2068	2356	b31efeddc7b1784ca1582974fab9bcb2_JaffaCakes118.EXE	84
PID 2356 wrote to memory of 2068	2356	b31efeddc7b1784ca1582974fab9bcb2_JaffaCakes118.EXE	84
PID 2356 wrote to memory of 2068	2356	b31efeddc7b1784ca1582974fab9bcb2_JaffaCakes118.EXE	84

C:\Users\Admin\AppData\Local\Temp\b31efeddc7b1784ca1582974fab9bcb2_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b31efeddc7b1784ca1582974fab9bcb2_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2396
- C:\Users\Admin\AppData\Local\Temp\b31efeddc7b1784ca1582974fab9bcb2_JaffaCakes118.EXE
  "C:\Users\Admin\AppData\Local\Temp\b31efeddc7b1784ca1582974fab9bcb2_JaffaCakes118.EXE"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2356
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2436
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2436 -s 480
      4⤵
      Program crash
      PID:3888
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2436 -s 488
      4⤵
      Program crash
      PID:1988
- - C:\Windows\SysWOW64\notepad.exe
    notepad.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:2068
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2068 -s 992
      4⤵
      Program crash
      PID:2684
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2068 -s 988
      4⤵
      Program crash
      PID:1468

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 2436 -ip 2436
1⤵
PID:4464

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 2068 -ip 2068
1⤵
PID:3360

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 2436 -ip 2436
1⤵
PID:412

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 2068 -ip 2068
1⤵
PID:3792

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/2068-14-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/2068-17-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/2068-15-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/2068-10-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/2356-3-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/2356-4-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/2356-6-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/2356-8-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/2356-11-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/2396-7-0x0000000000400000-0x00000000004A2000-memory.dmp

Filesize
648KB

Download
memory/2396-0-0x0000000000400000-0x00000000004A2000-memory.dmp

Filesize
648KB

Download
memory/2436-9-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/2436-16-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads