Analysis
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max time kernel
150s -
max time network
151s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
13-03-2024 21:27
Static task
static1
Behavioral task
behavioral1
Sample
c6e61e1c71ffe0bfada815f3bbd030c2.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
c6e61e1c71ffe0bfada815f3bbd030c2.exe
Resource
win10v2004-20240226-en
General
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Target
c6e61e1c71ffe0bfada815f3bbd030c2.exe
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Size
224KB
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MD5
c6e61e1c71ffe0bfada815f3bbd030c2
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SHA1
b6062e39f90190afc49f9263c3d6c142463ba4b8
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SHA256
f107b5194dd52d81cdc4db22937344db1d77658a106095708563d9b7a250b724
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SHA512
5dc097d3c503a3a499623b133c7f485f4f493122cb72d0ca20f6a83a83537203de9932efb34c22fb2fc9869b1857468d6d6451d42feada9d5256aa925897333a
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SSDEEP
6144:PJtDhxzkeP0G5xSeZWqpJzI3e3OT9uiGKrQ:PJtDPzkiL5xSeZJpue3uuiG5
Malware Config
Extracted
xtremerat
kita2011.zapto.org
Ÿ杋效愨摈kita2011.zapto.org
kita2011.dyndns-ip.com
Signatures
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Detect XtremeRAT payload 11 IoCs
resource yara_rule behavioral1/memory/1924-3-0x0000000010000000-0x000000001004A000-memory.dmp family_xtremerat behavioral1/memory/1924-8-0x0000000010000000-0x000000001004A000-memory.dmp family_xtremerat behavioral1/memory/1924-7-0x0000000010000000-0x000000001004A000-memory.dmp family_xtremerat behavioral1/memory/1924-5-0x0000000010000000-0x000000001004A000-memory.dmp family_xtremerat behavioral1/memory/1924-15-0x0000000010000000-0x000000001004A000-memory.dmp family_xtremerat behavioral1/memory/2776-14-0x0000000010000000-0x000000001004A000-memory.dmp family_xtremerat behavioral1/memory/2776-18-0x0000000010000000-0x000000001004A000-memory.dmp family_xtremerat behavioral1/memory/2776-19-0x0000000010000000-0x000000001004A000-memory.dmp family_xtremerat behavioral1/memory/2776-20-0x0000000010000000-0x000000001004A000-memory.dmp family_xtremerat behavioral1/memory/1120-22-0x0000000010000000-0x000000001004A000-memory.dmp family_xtremerat behavioral1/memory/2776-23-0x0000000010000000-0x000000001004A000-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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Modifies Installed Components in the registry 2 TTPs 4 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2} svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}\StubPath = "C:\\Windows\\InstallDir\\Server.exe" svchost.exe Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2} notepad.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}\StubPath = "C:\\Windows\\InstallDir\\Server.exe restart" notepad.exe -
Deletes itself 1 IoCs
pid Process 2776 notepad.exe -
Adds Run key to start application 2 TTPs 4 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe" notepad.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-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe" svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\InstallDir\\Server.exe" notepad.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1796 set thread context of 1924 1796 c6e61e1c71ffe0bfada815f3bbd030c2.exe 28 -
Drops file in Windows directory 3 IoCs
description ioc Process File opened for modification C:\Windows\InstallDir\Server.exe notepad.exe File created C:\Windows\InstallDir\Server.exe notepad.exe File opened for modification C:\Windows\InstallDir\ notepad.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1796 c6e61e1c71ffe0bfada815f3bbd030c2.exe 2776 notepad.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 1796 wrote to memory of 1924 1796 c6e61e1c71ffe0bfada815f3bbd030c2.exe 28 PID 1796 wrote to memory of 1924 1796 c6e61e1c71ffe0bfada815f3bbd030c2.exe 28 PID 1796 wrote to memory of 1924 1796 c6e61e1c71ffe0bfada815f3bbd030c2.exe 28 PID 1796 wrote to memory of 1924 1796 c6e61e1c71ffe0bfada815f3bbd030c2.exe 28 PID 1796 wrote to memory of 1924 1796 c6e61e1c71ffe0bfada815f3bbd030c2.exe 28 PID 1796 wrote to memory of 1924 1796 c6e61e1c71ffe0bfada815f3bbd030c2.exe 28 PID 1796 wrote to memory of 1924 1796 c6e61e1c71ffe0bfada815f3bbd030c2.exe 28 PID 1796 wrote to memory of 1924 1796 c6e61e1c71ffe0bfada815f3bbd030c2.exe 28 PID 1796 wrote to memory of 1924 1796 c6e61e1c71ffe0bfada815f3bbd030c2.exe 28 PID 1796 wrote to memory of 1924 1796 c6e61e1c71ffe0bfada815f3bbd030c2.exe 28 PID 1796 wrote to memory of 1924 1796 c6e61e1c71ffe0bfada815f3bbd030c2.exe 28 PID 1796 wrote to memory of 1924 1796 c6e61e1c71ffe0bfada815f3bbd030c2.exe 28 PID 1796 wrote to memory of 1924 1796 c6e61e1c71ffe0bfada815f3bbd030c2.exe 28 PID 1796 wrote to memory of 1924 1796 c6e61e1c71ffe0bfada815f3bbd030c2.exe 28 PID 1924 wrote to memory of 1120 1924 c6e61e1c71ffe0bfada815f3bbd030c2.exe 29 PID 1924 wrote to memory of 1120 1924 c6e61e1c71ffe0bfada815f3bbd030c2.exe 29 PID 1924 wrote to memory of 1120 1924 c6e61e1c71ffe0bfada815f3bbd030c2.exe 29 PID 1924 wrote to memory of 1120 1924 c6e61e1c71ffe0bfada815f3bbd030c2.exe 29 PID 1924 wrote to memory of 1120 1924 c6e61e1c71ffe0bfada815f3bbd030c2.exe 29 PID 1924 wrote to memory of 2776 1924 c6e61e1c71ffe0bfada815f3bbd030c2.exe 30 PID 1924 wrote to memory of 2776 1924 c6e61e1c71ffe0bfada815f3bbd030c2.exe 30 PID 1924 wrote to memory of 2776 1924 c6e61e1c71ffe0bfada815f3bbd030c2.exe 30 PID 1924 wrote to memory of 2776 1924 c6e61e1c71ffe0bfada815f3bbd030c2.exe 30 PID 1924 wrote to memory of 2776 1924 c6e61e1c71ffe0bfada815f3bbd030c2.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\c6e61e1c71ffe0bfada815f3bbd030c2.exe"C:\Users\Admin\AppData\Local\Temp\c6e61e1c71ffe0bfada815f3bbd030c2.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1796 -
C:\Users\Admin\AppData\Local\Temp\c6e61e1c71ffe0bfada815f3bbd030c2.exe"C:\Users\Admin\AppData\Local\Temp\c6e61e1c71ffe0bfada815f3bbd030c2.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:1924 -
C:\Windows\SysWOW64\svchost.exesvchost.exe3⤵
- Modifies Installed Components in the registry
- Adds Run key to start application
PID:1120
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C:\Windows\SysWOW64\notepad.exenotepad.exe3⤵
- Modifies Installed Components in the registry
- Deletes itself
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
PID:2776
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
224KB
MD5c6e61e1c71ffe0bfada815f3bbd030c2
SHA1b6062e39f90190afc49f9263c3d6c142463ba4b8
SHA256f107b5194dd52d81cdc4db22937344db1d77658a106095708563d9b7a250b724
SHA5125dc097d3c503a3a499623b133c7f485f4f493122cb72d0ca20f6a83a83537203de9932efb34c22fb2fc9869b1857468d6d6451d42feada9d5256aa925897333a