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Analysis
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max time kernel
149s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
19/01/2025, 01:27
Behavioral task
behavioral1
Sample
JaffaCakes118_b9940bdafb3e30b062b4b88e9d65a27f.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
JaffaCakes118_b9940bdafb3e30b062b4b88e9d65a27f.exe
Resource
win10v2004-20241007-en
General
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Target
JaffaCakes118_b9940bdafb3e30b062b4b88e9d65a27f.exe
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Size
65KB
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MD5
b9940bdafb3e30b062b4b88e9d65a27f
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SHA1
1fef0740910382bc4b8f897af9a573a58838d75a
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SHA256
9b7945fe41a3a0bb26c48e3d001925bb0b5eafdc812daded2cf817d02dfb3e7d
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SHA512
3384bb8404146d929463b138a22feaf52d35eab532fa5e1cba77185a5a88494229fdd372b09dda3f77e11ce1e89d5610814af9ca787848b9fd0e342b5b5fb5d3
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SSDEEP
768:S8m1Sq4NQErBsH1tzoisBKQI6tObALkdq8uWH9Ifnca/yyR+P2ujf1iZKPA+7XoL:gsq+QV47ObATXW+f/yd7ozNwixo3I
Malware Config
Extracted
xtremerat
x2ip.zapto.org
Signatures
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Detect XtremeRAT payload 4 IoCs
resource yara_rule behavioral1/memory/2380-3-0x0000000010000000-0x000000001004A000-memory.dmp family_xtremerat behavioral1/memory/2740-2-0x0000000010000000-0x000000001004A000-memory.dmp family_xtremerat behavioral1/memory/2740-5-0x0000000010000000-0x000000001004A000-memory.dmp family_xtremerat behavioral1/memory/2740-6-0x0000000010000000-0x000000001004A000-memory.dmp family_xtremerat -
XtremeRAT
The XtremeRAT was developed by xtremecoder and has been available since at least 2010, and written in Delphi.
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Xtremerat family
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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.
description ioc Process Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{MOP384PP-8P70-1CC1-60B1-86O1SD522T2S} calc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{MOP384PP-8P70-1CC1-60B1-86O1SD522T2S}\StubPath = "C:\\Windows\\Internets\\internet.exe restart" calc.exe -
Adds Run key to start application 2 TTPs 3 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RUN\HKLM = "C:\\Windows\\Internets\\internet.exe" calc.exe Set value (str) \REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\Internets\\internet.exe" calc.exe Set value (str) \REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "%SERVER%" calc.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\Internets\internet.exe calc.exe File created C:\Windows\Internets\internet.exe calc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JaffaCakes118_b9940bdafb3e30b062b4b88e9d65a27f.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language calc.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2740 calc.exe -
Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 2380 wrote to memory of 2740 2380 JaffaCakes118_b9940bdafb3e30b062b4b88e9d65a27f.exe 30 PID 2380 wrote to memory of 2740 2380 JaffaCakes118_b9940bdafb3e30b062b4b88e9d65a27f.exe 30 PID 2380 wrote to memory of 2740 2380 JaffaCakes118_b9940bdafb3e30b062b4b88e9d65a27f.exe 30 PID 2380 wrote to memory of 2740 2380 JaffaCakes118_b9940bdafb3e30b062b4b88e9d65a27f.exe 30 PID 2380 wrote to memory of 2740 2380 JaffaCakes118_b9940bdafb3e30b062b4b88e9d65a27f.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b9940bdafb3e30b062b4b88e9d65a27f.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b9940bdafb3e30b062b4b88e9d65a27f.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2380 -
C:\Windows\SysWOW64\calc.execalc.exe2⤵
- 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 SetWindowsHookEx
PID:2740
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Active Setup
1Registry Run Keys / Startup Folder
1Privilege Escalation
Boot or Logon Autostart Execution
2Active Setup
1Registry Run Keys / Startup Folder
1