xtremerat | b2684e98ff0d7550322e4bcdbed43bbd58553b47ed18e45f23c25c10f0c711d5

General

Target

b939bbcdeb5a498e6be4528bb08bcd32_JaffaCakes118.exe
Size

21KB
MD5

b939bbcdeb5a498e6be4528bb08bcd32
SHA1

db7f66363caab73fe921b526671008a700bb9610
SHA256

b2684e98ff0d7550322e4bcdbed43bbd58553b47ed18e45f23c25c10f0c711d5
SHA512

541e247824b9363fe1d676572057f874835d66f401acbd2aee4e7350fe98c74130ca37d0b35e715ee878cb3dd2c6936f0cec336e7e5a88bb174e3928cae25392
SSDEEP

384:pIdmF+Ti213fEF9QZd/cBr5M/gOjkaS4s/1k5YiZNlOUdwe5FKj5EMn0pLR:pIsF81fG9QveLOYTe5YioUdB6U

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

hacker3oof.no-ip.biz

Signatures

Detect XtremeRAT payload 3 IoCs

resource	yara_rule
behavioral1/memory/1752-6-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral1/memory/1732-7-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral1/memory/1752-9-0x0000000000C80000-0x0000000000C96000-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\{M83Y5813-KQ8T-N25E-1ULG-WU5447GSN8G6}	b939bbcdeb5a498e6be4528bb08bcd32_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{M83Y5813-KQ8T-N25E-1ULG-WU5447GSN8G6}\StubPath = "C:\\Windows\\WinRAR\\WinRAR.exe restart"	b939bbcdeb5a498e6be4528bb08bcd32_JaffaCakes118.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\\WinRAR\\WinRAR.exe"	b939bbcdeb5a498e6be4528bb08bcd32_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\WinRAR\\WinRAR.exe"	b939bbcdeb5a498e6be4528bb08bcd32_JaffaCakes118.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1732-0-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/1752-6-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/1732-7-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/1752-9-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\WinRAR\WinRAR.exe	b939bbcdeb5a498e6be4528bb08bcd32_JaffaCakes118.exe
File created	C:\Windows\WinRAR\WinRAR.exe	b939bbcdeb5a498e6be4528bb08bcd32_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 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	b939bbcdeb5a498e6be4528bb08bcd32_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1752	explorer.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1732 wrote to memory of 1752	1732	b939bbcdeb5a498e6be4528bb08bcd32_JaffaCakes118.exe	30
PID 1732 wrote to memory of 1752	1732	b939bbcdeb5a498e6be4528bb08bcd32_JaffaCakes118.exe	30
PID 1732 wrote to memory of 1752	1732	b939bbcdeb5a498e6be4528bb08bcd32_JaffaCakes118.exe	30
PID 1732 wrote to memory of 1752	1732	b939bbcdeb5a498e6be4528bb08bcd32_JaffaCakes118.exe	30
PID 1732 wrote to memory of 1752	1732	b939bbcdeb5a498e6be4528bb08bcd32_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\b939bbcdeb5a498e6be4528bb08bcd32_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b939bbcdeb5a498e6be4528bb08bcd32_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:1732
- C:\Windows\SysWOW64\explorer.exe
  explorer.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:1752

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/1732-0-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/1732-7-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/1752-4-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/1752-6-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/1752-9-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads