xtremerat | 9a30b4cb52dc8718605fe1083f6fa2fbe7f9fd00f152f18beeb3ca71394aee2c

General

Target

91e17c1642d3098b745c5dc4bc204a81_JaffaCakes118.exe
Size

504KB
MD5

91e17c1642d3098b745c5dc4bc204a81
SHA1

a9d18083d87263b1cc437023a912f84b64d98b2a
SHA256

9a30b4cb52dc8718605fe1083f6fa2fbe7f9fd00f152f18beeb3ca71394aee2c
SHA512

e1a8eb55da59fc7506d73dbe22cf0e40eb9b5968118e28ea56c0cd2db0582e9bd7e09e1c408fdf7a2b5fc8f710d7c4152dd7db701f7c9c997f4b33b9cda630d5
SSDEEP

12288:iYor7uazcS1dnudR8ng5cbprWdz5YDUK6Tv8pWF:jor7uazhcGPbZWdz5YABG

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

firefox-dmm.sytes.net

google-pro.dyndns.info

Signatures

Detect XtremeRAT payload 8 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2732-9-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2732-8-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4428-12-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2732-14-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2968-13-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2968-16-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4428-18-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2968-20-0x0000000010000000-0x000000001004D000-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

Processes:

notepad.exe

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{T2SK5MF8-MK2D-TMF7-1GYY-17RVL88AM6H8}	notepad.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{T2SK5MF8-MK2D-TMF7-1GYY-17RVL88AM6H8}\StubPath = "C:\\Windows\\system32\\InstallDir\\ver.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:\\Windows\\system32\\InstallDir\\ver.exe"	notepad.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\system32\\InstallDir\\ver.exe"	notepad.exe

Drops file in System32 directory 4 IoCs

Processes:

91e17c1642d3098b745c5dc4bc204a81_JaffaCakes118.exenotepad.exe

description	ioc	Process
File created	C:\Windows\SysWOW64\000N053wKyP.gif	91e17c1642d3098b745c5dc4bc204a81_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\InstallDir\ver.exe	notepad.exe
File created	C:\Windows\SysWOW64\InstallDir\ver.exe	notepad.exe
File created	C:\Windows\SysWOW64\dddddddd_final2.exe	91e17c1642d3098b745c5dc4bc204a81_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

91e17c1642d3098b745c5dc4bc204a81_JaffaCakes118.exe

description	pid	Process	procid_target
PID 4024 set thread context of 2732	4024	91e17c1642d3098b745c5dc4bc204a81_JaffaCakes118.exe	83

UPX packed file 12 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/4024-0-0x0000000000400000-0x00000000004DC000-memory.dmp	upx
behavioral2/memory/2732-5-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2732-7-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2732-9-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4024-11-0x0000000000400000-0x00000000004DC000-memory.dmp	upx
behavioral2/memory/2732-8-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4428-12-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2732-14-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2968-13-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2968-16-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4428-18-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2968-20-0x0000000010000000-0x000000001004D000-memory.dmp	upx

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
2108	4428	WerFault.exe	84
2456	2968	WerFault.exe	85
3680	4428	WerFault.exe	84
876	2968	WerFault.exe	85

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:

91e17c1642d3098b745c5dc4bc204a81_JaffaCakes118.exe91e17c1642d3098b745c5dc4bc204a81_JaffaCakes118.exesvchost.exenotepad.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	91e17c1642d3098b745c5dc4bc204a81_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	91e17c1642d3098b745c5dc4bc204a81_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:

91e17c1642d3098b745c5dc4bc204a81_JaffaCakes118.exenotepad.exe

pid	Process
4024	91e17c1642d3098b745c5dc4bc204a81_JaffaCakes118.exe
2968	notepad.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

91e17c1642d3098b745c5dc4bc204a81_JaffaCakes118.exe91e17c1642d3098b745c5dc4bc204a81_JaffaCakes118.exe

description	pid	Process	procid_target
PID 4024 wrote to memory of 2732	4024	91e17c1642d3098b745c5dc4bc204a81_JaffaCakes118.exe	83
PID 4024 wrote to memory of 2732	4024	91e17c1642d3098b745c5dc4bc204a81_JaffaCakes118.exe	83
PID 4024 wrote to memory of 2732	4024	91e17c1642d3098b745c5dc4bc204a81_JaffaCakes118.exe	83
PID 4024 wrote to memory of 2732	4024	91e17c1642d3098b745c5dc4bc204a81_JaffaCakes118.exe	83
PID 4024 wrote to memory of 2732	4024	91e17c1642d3098b745c5dc4bc204a81_JaffaCakes118.exe	83
PID 4024 wrote to memory of 2732	4024	91e17c1642d3098b745c5dc4bc204a81_JaffaCakes118.exe	83
PID 4024 wrote to memory of 2732	4024	91e17c1642d3098b745c5dc4bc204a81_JaffaCakes118.exe	83
PID 4024 wrote to memory of 2732	4024	91e17c1642d3098b745c5dc4bc204a81_JaffaCakes118.exe	83
PID 2732 wrote to memory of 4428	2732	91e17c1642d3098b745c5dc4bc204a81_JaffaCakes118.exe	84
PID 2732 wrote to memory of 4428	2732	91e17c1642d3098b745c5dc4bc204a81_JaffaCakes118.exe	84
PID 2732 wrote to memory of 4428	2732	91e17c1642d3098b745c5dc4bc204a81_JaffaCakes118.exe	84
PID 2732 wrote to memory of 4428	2732	91e17c1642d3098b745c5dc4bc204a81_JaffaCakes118.exe	84
PID 2732 wrote to memory of 2968	2732	91e17c1642d3098b745c5dc4bc204a81_JaffaCakes118.exe	85
PID 2732 wrote to memory of 2968	2732	91e17c1642d3098b745c5dc4bc204a81_JaffaCakes118.exe	85
PID 2732 wrote to memory of 2968	2732	91e17c1642d3098b745c5dc4bc204a81_JaffaCakes118.exe	85
PID 2732 wrote to memory of 2968	2732	91e17c1642d3098b745c5dc4bc204a81_JaffaCakes118.exe	85

C:\Users\Admin\AppData\Local\Temp\91e17c1642d3098b745c5dc4bc204a81_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\91e17c1642d3098b745c5dc4bc204a81_JaffaCakes118.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4024
- C:\Users\Admin\AppData\Local\Temp\91e17c1642d3098b745c5dc4bc204a81_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\91e17c1642d3098b745c5dc4bc204a81_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2732
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4428
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4428 -s 480
      4⤵
      Program crash
      PID:2108
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4428 -s 488
      4⤵
      Program crash
      PID:3680
- - C:\Windows\SysWOW64\notepad.exe
    notepad.exe
    3⤵
    - Boot or Logon Autostart Execution: Active Setup
    - Adds Run key to start application
    - Drops file in System32 directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:2968
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2968 -s 976
      4⤵
      Program crash
      PID:2456
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2968 -s 984
      4⤵
      Program crash
      PID:876

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4428 -ip 4428
1⤵
PID:4576

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 2968 -ip 2968
1⤵
PID:3512

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 4428 -ip 4428
1⤵
PID:4972

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 2968 -ip 2968
1⤵
PID:1868

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/2732-5-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2732-7-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2732-9-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2732-8-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2732-14-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2968-13-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2968-16-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2968-20-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4024-0-0x0000000000400000-0x00000000004DC000-memory.dmp

Filesize
880KB

Download
memory/4024-11-0x0000000000400000-0x00000000004DC000-memory.dmp

Filesize
880KB

Download
memory/4428-12-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4428-18-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads