Analysis
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max time kernel
144s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
26/12/2023, 21:34
Static task
static1
Behavioral task
behavioral1
Sample
90636e2071ba6ac5f88528c55e655ca8.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
90636e2071ba6ac5f88528c55e655ca8.exe
Resource
win10v2004-20231215-en
General
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Target
90636e2071ba6ac5f88528c55e655ca8.exe
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Size
354KB
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MD5
90636e2071ba6ac5f88528c55e655ca8
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SHA1
32b50e2449f4ed6b1326f359d272b3ed69bd4689
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SHA256
f8c294711ca0535b5301f56a977d651d54189eca90c5cc83a26cb4270124443f
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SHA512
0c8c61bff11c185c8345974f6ed37a0bbe133df2b7ce0c2adf3e1cb9a15f6721fc4b259ac5f667fb7b42fa4dbdfc5e99d6de64636c70c099c3e88864d47a3f4e
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SSDEEP
6144:thBepH41+m7vv47B32CEIsUozZ3bR4OD8yjJe6b+78x5mJBID791PD20/MV70xXe:eH4177vv4mIsUo9RDlk6KwbmXIFl1/gh
Malware Config
Extracted
xtremerat
kaan1993.zapto.org
Signatures
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Detect XtremeRAT payload 9 IoCs
resource yara_rule behavioral2/memory/2236-7-0x0000000010000000-0x000000001004D000-memory.dmp family_xtremerat behavioral2/memory/2236-6-0x0000000010000000-0x000000001004D000-memory.dmp family_xtremerat behavioral2/memory/3252-8-0x0000000010000000-0x000000001004D000-memory.dmp family_xtremerat behavioral2/memory/3264-12-0x0000000010000000-0x000000001004D000-memory.dmp family_xtremerat behavioral2/memory/3264-13-0x0000000010000000-0x000000001004D000-memory.dmp family_xtremerat behavioral2/memory/3252-15-0x0000000010000000-0x000000001004D000-memory.dmp family_xtremerat behavioral2/memory/3264-14-0x0000000010000000-0x000000001004D000-memory.dmp family_xtremerat behavioral2/memory/2236-10-0x0000000010000000-0x000000001004D000-memory.dmp family_xtremerat behavioral2/memory/3264-9-0x0000000010000000-0x000000001004D000-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 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{G15P2DII-5LON-U5PH-QYN5-QP03038U6272}\StubPath = "C:\\Windows\\system32\\InstallDir\\svchost.exe restart" explorer.exe Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{G15P2DII-5LON-U5PH-QYN5-QP03038U6272} explorer.exe -
resource yara_rule behavioral2/memory/2236-5-0x0000000010000000-0x000000001004D000-memory.dmp upx behavioral2/memory/2236-7-0x0000000010000000-0x000000001004D000-memory.dmp upx behavioral2/memory/2236-6-0x0000000010000000-0x000000001004D000-memory.dmp upx behavioral2/memory/3252-8-0x0000000010000000-0x000000001004D000-memory.dmp upx behavioral2/memory/3264-12-0x0000000010000000-0x000000001004D000-memory.dmp upx behavioral2/memory/3264-13-0x0000000010000000-0x000000001004D000-memory.dmp upx behavioral2/memory/3252-15-0x0000000010000000-0x000000001004D000-memory.dmp upx behavioral2/memory/3264-14-0x0000000010000000-0x000000001004D000-memory.dmp upx behavioral2/memory/2236-10-0x0000000010000000-0x000000001004D000-memory.dmp upx behavioral2/memory/3264-9-0x0000000010000000-0x000000001004D000-memory.dmp upx behavioral2/memory/2236-2-0x0000000010000000-0x000000001004D000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\system32\\InstallDir\\svchost.exe" explorer.exe Set value (str) \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\system32\\InstallDir\\svchost.exe" explorer.exe -
Drops file in System32 directory 2 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\InstallDir\svchost.exe explorer.exe File created C:\Windows\SysWOW64\InstallDir\svchost.exe explorer.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 5060 set thread context of 2236 5060 90636e2071ba6ac5f88528c55e655ca8.exe 99 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 2 IoCs
pid pid_target Process procid_target 2812 3252 WerFault.exe 91 1744 3252 WerFault.exe 91 -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 5060 90636e2071ba6ac5f88528c55e655ca8.exe 3264 explorer.exe -
Suspicious use of WriteProcessMemory 16 IoCs
description pid Process procid_target PID 5060 wrote to memory of 2236 5060 90636e2071ba6ac5f88528c55e655ca8.exe 99 PID 5060 wrote to memory of 2236 5060 90636e2071ba6ac5f88528c55e655ca8.exe 99 PID 5060 wrote to memory of 2236 5060 90636e2071ba6ac5f88528c55e655ca8.exe 99 PID 5060 wrote to memory of 2236 5060 90636e2071ba6ac5f88528c55e655ca8.exe 99 PID 5060 wrote to memory of 2236 5060 90636e2071ba6ac5f88528c55e655ca8.exe 99 PID 5060 wrote to memory of 2236 5060 90636e2071ba6ac5f88528c55e655ca8.exe 99 PID 5060 wrote to memory of 2236 5060 90636e2071ba6ac5f88528c55e655ca8.exe 99 PID 5060 wrote to memory of 2236 5060 90636e2071ba6ac5f88528c55e655ca8.exe 99 PID 2236 wrote to memory of 3252 2236 90636e2071ba6ac5f88528c55e655ca8.exe 91 PID 2236 wrote to memory of 3252 2236 90636e2071ba6ac5f88528c55e655ca8.exe 91 PID 2236 wrote to memory of 3252 2236 90636e2071ba6ac5f88528c55e655ca8.exe 91 PID 2236 wrote to memory of 3252 2236 90636e2071ba6ac5f88528c55e655ca8.exe 91 PID 2236 wrote to memory of 3264 2236 90636e2071ba6ac5f88528c55e655ca8.exe 93 PID 2236 wrote to memory of 3264 2236 90636e2071ba6ac5f88528c55e655ca8.exe 93 PID 2236 wrote to memory of 3264 2236 90636e2071ba6ac5f88528c55e655ca8.exe 93 PID 2236 wrote to memory of 3264 2236 90636e2071ba6ac5f88528c55e655ca8.exe 93
Processes
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C:\Users\Admin\AppData\Local\Temp\90636e2071ba6ac5f88528c55e655ca8.exe"C:\Users\Admin\AppData\Local\Temp\90636e2071ba6ac5f88528c55e655ca8.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5060 -
C:\Users\Admin\AppData\Local\Temp\90636e2071ba6ac5f88528c55e655ca8.exe2⤵
- Suspicious use of WriteProcessMemory
PID:2236
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C:\Windows\SysWOW64\svchost.exesvchost.exe1⤵PID:3252
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3252 -s 4842⤵
- Program crash
PID:2812
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3252 -s 4922⤵
- Program crash
PID:1744
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C:\Windows\SysWOW64\explorer.exeexplorer.exe1⤵
- Modifies Installed Components in the registry
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
PID:3264
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3252 -ip 32521⤵PID:1644
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 3252 -ip 32521⤵PID:1552