xtremerat | 0098a5669cd976feb56cc4f81aa6c3f55e6731f65ce23d0e2c48705934659bb9

General

Target

JaffaCakes118_64b2fbaeed87ecf68547bfc7f9097151.exe
Size

19KB
MD5

64b2fbaeed87ecf68547bfc7f9097151
SHA1

5b5a3f0d979878bb44e040e2f7a2e1275cc228fa
SHA256

0098a5669cd976feb56cc4f81aa6c3f55e6731f65ce23d0e2c48705934659bb9
SHA512

a1240c7caa5bd1abca979a7e393c52239f9cb61b013c3fb29c8cfa1731c0414181ab7e25d464ac3ed4ceb4a6060aba03805208f4ce45ae9aefa9cca2a7a594ff
SSDEEP

384:FHKZfuH87GowDqGoMwevqxP6k6zIDwPVBS/Zdo/rVUNu7R:QZfuHUvwDKP6kMpOZdi2q

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/2828-4-0x0000000000C80000-0x0000000000C95000-memory.dmp	family_xtremerat
behavioral2/memory/3680-5-0x0000000000C80000-0x0000000000C95000-memory.dmp	family_xtremerat
behavioral2/memory/2828-7-0x0000000000C80000-0x0000000000C95000-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
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\{2U8DVO85-477P-61TU-S8A1-E2S4R35Q8326}	JaffaCakes118_64b2fbaeed87ecf68547bfc7f9097151.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{2U8DVO85-477P-61TU-S8A1-E2S4R35Q8326}\StubPath = "C:\\Windows\\system32\\InstallDir\\Server.exe restart"	JaffaCakes118_64b2fbaeed87ecf68547bfc7f9097151.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:\\Windows\\system32\\InstallDir\\Server.exe"	JaffaCakes118_64b2fbaeed87ecf68547bfc7f9097151.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\system32\\InstallDir\\Server.exe"	JaffaCakes118_64b2fbaeed87ecf68547bfc7f9097151.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\InstallDir\Server.exe	JaffaCakes118_64b2fbaeed87ecf68547bfc7f9097151.exe
File created	C:\Windows\SysWOW64\InstallDir\Server.exe	JaffaCakes118_64b2fbaeed87ecf68547bfc7f9097151.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3680-0-0x0000000000C80000-0x0000000000C95000-memory.dmp	upx
behavioral2/memory/2828-4-0x0000000000C80000-0x0000000000C95000-memory.dmp	upx
behavioral2/memory/3680-5-0x0000000000C80000-0x0000000000C95000-memory.dmp	upx
behavioral2/memory/2828-7-0x0000000000C80000-0x0000000000C95000-memory.dmp	upx

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 2 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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_64b2fbaeed87ecf68547bfc7f9097151.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2828	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3680 wrote to memory of 2828	3680	JaffaCakes118_64b2fbaeed87ecf68547bfc7f9097151.exe	82
PID 3680 wrote to memory of 2828	3680	JaffaCakes118_64b2fbaeed87ecf68547bfc7f9097151.exe	82
PID 3680 wrote to memory of 2828	3680	JaffaCakes118_64b2fbaeed87ecf68547bfc7f9097151.exe	82
PID 3680 wrote to memory of 2828	3680	JaffaCakes118_64b2fbaeed87ecf68547bfc7f9097151.exe	82

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_64b2fbaeed87ecf68547bfc7f9097151.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_64b2fbaeed87ecf68547bfc7f9097151.exe"
1⤵
- 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 WriteProcessMemory
PID:3680
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2828

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/2828-4-0x0000000000C80000-0x0000000000C95000-memory.dmp

Filesize
84KB

Download
memory/2828-7-0x0000000000C80000-0x0000000000C95000-memory.dmp

Filesize
84KB

Download
memory/3680-0-0x0000000000C80000-0x0000000000C95000-memory.dmp

Filesize
84KB

Download
memory/3680-5-0x0000000000C80000-0x0000000000C95000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads