xtremerat | fcbf515ddd19f888f892cddbebfab9d9c666d2eb4afde374fee8d1128cf89d3a

General

Target

615980974c3cd0617493683e879293a4_JaffaCakes118.exe
Size

75KB
MD5

615980974c3cd0617493683e879293a4
SHA1

5059f260284f55c869b7ec4d2b6cc1875f66b422
SHA256

fcbf515ddd19f888f892cddbebfab9d9c666d2eb4afde374fee8d1128cf89d3a
SHA512

bb5ef9a1e8710a3b38f3b6d908cb46f10aa7831108bd1c169da3de427d440907d924635e47ec2eb8eb663e1ad4246d952fa2d77aecedc2abd2ae863e58daf31c
SSDEEP

768:kE9hghdN12Ozhiow2Gkm6+c3/6tzo0qZOp69AwR:ku+zMOlw2GkmS3ytoW+z

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 6 IoCs

resource	yara_rule
behavioral2/memory/1508-0-0x0000000000C80000-0x0000000000C95000-memory.dmp	family_xtremerat
behavioral2/memory/3048-4-0x0000000000C80000-0x0000000000C95000-memory.dmp	family_xtremerat
behavioral2/files/0x000a000000023b75-5.dat	family_xtremerat
behavioral2/memory/4108-6-0x0000000000C80000-0x0000000000C95000-memory.dmp	family_xtremerat
behavioral2/memory/1508-7-0x0000000000C80000-0x0000000000C95000-memory.dmp	family_xtremerat
behavioral2/memory/4108-9-0x0000000000C80000-0x0000000000C95000-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\{DJ0TN1LI-D8N1-5W40-206W-BHNR0X031CA6}	615980974c3cd0617493683e879293a4_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{DJ0TN1LI-D8N1-5W40-206W-BHNR0X031CA6}\StubPath = "C:\\Windows\\InstallDir\\Server.exe restart"	615980974c3cd0617493683e879293a4_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{DJ0TN1LI-D8N1-5W40-206W-BHNR0X031CA6}	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{DJ0TN1LI-D8N1-5W40-206W-BHNR0X031CA6}\StubPath = "C:\\Windows\\InstallDir\\Server.exe"	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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\InstallDir\\Server.exe"	615980974c3cd0617493683e879293a4_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe"	615980974c3cd0617493683e879293a4_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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe"	svchost.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1508-0-0x0000000000C80000-0x0000000000C95000-memory.dmp	upx
behavioral2/memory/3048-4-0x0000000000C80000-0x0000000000C95000-memory.dmp	upx
behavioral2/files/0x000a000000023b75-5.dat	upx
behavioral2/memory/4108-6-0x0000000000C80000-0x0000000000C95000-memory.dmp	upx
behavioral2/memory/1508-7-0x0000000000C80000-0x0000000000C95000-memory.dmp	upx
behavioral2/memory/4108-9-0x0000000000C80000-0x0000000000C95000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\InstallDir\Server.exe	615980974c3cd0617493683e879293a4_JaffaCakes118.exe
File created	C:\Windows\InstallDir\Server.exe	615980974c3cd0617493683e879293a4_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	615980974c3cd0617493683e879293a4_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
4108	explorer.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1508 wrote to memory of 3048	1508	615980974c3cd0617493683e879293a4_JaffaCakes118.exe	85
PID 1508 wrote to memory of 3048	1508	615980974c3cd0617493683e879293a4_JaffaCakes118.exe	85
PID 1508 wrote to memory of 3048	1508	615980974c3cd0617493683e879293a4_JaffaCakes118.exe	85
PID 1508 wrote to memory of 3048	1508	615980974c3cd0617493683e879293a4_JaffaCakes118.exe	85
PID 1508 wrote to memory of 4784	1508	615980974c3cd0617493683e879293a4_JaffaCakes118.exe	87
PID 1508 wrote to memory of 4784	1508	615980974c3cd0617493683e879293a4_JaffaCakes118.exe	87
PID 1508 wrote to memory of 4784	1508	615980974c3cd0617493683e879293a4_JaffaCakes118.exe	87
PID 1508 wrote to memory of 2888	1508	615980974c3cd0617493683e879293a4_JaffaCakes118.exe	89
PID 1508 wrote to memory of 2888	1508	615980974c3cd0617493683e879293a4_JaffaCakes118.exe	89
PID 1508 wrote to memory of 2888	1508	615980974c3cd0617493683e879293a4_JaffaCakes118.exe	89
PID 1508 wrote to memory of 4108	1508	615980974c3cd0617493683e879293a4_JaffaCakes118.exe	90
PID 1508 wrote to memory of 4108	1508	615980974c3cd0617493683e879293a4_JaffaCakes118.exe	90
PID 1508 wrote to memory of 4108	1508	615980974c3cd0617493683e879293a4_JaffaCakes118.exe	90
PID 1508 wrote to memory of 4108	1508	615980974c3cd0617493683e879293a4_JaffaCakes118.exe	90

C:\Users\Admin\AppData\Local\Temp\615980974c3cd0617493683e879293a4_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\615980974c3cd0617493683e879293a4_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:1508
- 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:3048
- C:\Windows\SysWOW64\explorer.exe
  explorer.exe
  2⤵
  PID:4784
- C:\Windows\SysWOW64\explorer.exe
  explorer.exe
  2⤵
  PID:2888
- C:\Windows\SysWOW64\explorer.exe
  explorer.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:4108

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

C:\Windows\InstallDir\Server.exe

Filesize
75KB

MD5
615980974c3cd0617493683e879293a4

SHA1
5059f260284f55c869b7ec4d2b6cc1875f66b422

SHA256
fcbf515ddd19f888f892cddbebfab9d9c666d2eb4afde374fee8d1128cf89d3a

SHA512
bb5ef9a1e8710a3b38f3b6d908cb46f10aa7831108bd1c169da3de427d440907d924635e47ec2eb8eb663e1ad4246d952fa2d77aecedc2abd2ae863e58daf31c

Download Submit
memory/1508-0-0x0000000000C80000-0x0000000000C95000-memory.dmp

Filesize
84KB

Download
memory/1508-7-0x0000000000C80000-0x0000000000C95000-memory.dmp

Filesize
84KB

Download
memory/3048-4-0x0000000000C80000-0x0000000000C95000-memory.dmp

Filesize
84KB

Download
memory/4108-6-0x0000000000C80000-0x0000000000C95000-memory.dmp

Filesize
84KB

Download
memory/4108-9-0x0000000000C80000-0x0000000000C95000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads