Analysis
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max time kernel
145s -
max time network
188s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
02-10-2022 11:55
Static task
static1
Behavioral task
behavioral1
Sample
e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe
Resource
win7-20220812-en
General
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Target
e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe
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Size
316KB
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MD5
6388b0c729f20b3dbd680945479d2f80
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SHA1
7b3d01217936f8028c7ba917cb73e15b6c51a823
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SHA256
e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda
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SHA512
1c8389364c37535521700fc45d61025a4578d295b39ab5028690a2807fb22072c03ad3ac4bfb58646290a71156e71f4457a197d52d7404e6131aa81c4e9134c0
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SSDEEP
1536:2ntvJyGe1KmWCra7PRfV2GeJJL0Mk0PCZSAEDzzKb+4:skGe1jGPRyJ4saWD3c
Malware Config
Extracted
xtremerat
msg290yaho.myvnc.com
Signatures
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Detect XtremeRAT payload 8 IoCs
resource yara_rule behavioral2/memory/4920-135-0x0000000010000000-0x000000001004A000-memory.dmp family_xtremerat behavioral2/memory/4920-134-0x0000000000000000-mapping.dmp family_xtremerat behavioral2/memory/4920-136-0x0000000010000000-0x000000001004A000-memory.dmp family_xtremerat behavioral2/memory/4920-137-0x0000000010000000-0x000000001004A000-memory.dmp family_xtremerat behavioral2/memory/4920-138-0x0000000010000000-0x000000001004A000-memory.dmp family_xtremerat behavioral2/memory/5116-139-0x0000000000000000-mapping.dmp family_xtremerat behavioral2/memory/4920-140-0x0000000010000000-0x000000001004A000-memory.dmp family_xtremerat behavioral2/memory/5116-141-0x0000000010000000-0x000000001004A000-memory.dmp family_xtremerat -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0" e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe -
XtremeRAT
The XtremeRAT was developed by xtremecoder and has been available since at least 2010, and written in Delphi.
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description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0" e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3212 set thread context of 4920 3212 e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe 83 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Program crash 2 IoCs
pid pid_target Process procid_target 1728 5116 WerFault.exe 84 1328 5116 WerFault.exe 84 -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeBackupPrivilege 3212 e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3212 e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 3212 wrote to memory of 4920 3212 e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe 83 PID 3212 wrote to memory of 4920 3212 e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe 83 PID 3212 wrote to memory of 4920 3212 e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe 83 PID 3212 wrote to memory of 4920 3212 e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe 83 PID 3212 wrote to memory of 4920 3212 e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe 83 PID 3212 wrote to memory of 4920 3212 e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe 83 PID 3212 wrote to memory of 4920 3212 e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe 83 PID 3212 wrote to memory of 4920 3212 e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe 83 PID 3212 wrote to memory of 4920 3212 e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe 83 PID 3212 wrote to memory of 4920 3212 e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe 83 PID 3212 wrote to memory of 4920 3212 e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe 83 PID 3212 wrote to memory of 4920 3212 e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe 83 PID 3212 wrote to memory of 4920 3212 e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe 83 PID 4920 wrote to memory of 5116 4920 e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe 84 PID 4920 wrote to memory of 5116 4920 e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe 84 PID 4920 wrote to memory of 5116 4920 e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe 84 PID 4920 wrote to memory of 5116 4920 e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe 84 PID 4920 wrote to memory of 2120 4920 e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe 85 PID 4920 wrote to memory of 2120 4920 e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe 85 PID 4920 wrote to memory of 2120 4920 e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe 85 -
System policy modification 1 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe"C:\Users\Admin\AppData\Local\Temp\e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe"1⤵
- UAC bypass
- Windows security bypass
- Windows security modification
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
PID:3212 -
C:\Users\Admin\AppData\Local\Temp\e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe"C:\Users\Admin\AppData\Local\Temp\e9348cb01ad037af1b8043989cd525e47e5c271ff49aece168432eadfb69beda.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:4920 -
C:\Windows\SysWOW64\svchost.exesvchost.exe3⤵PID:5116
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5116 -s 4884⤵
- Program crash
PID:1728
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5116 -s 5084⤵
- Program crash
PID:1328
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"3⤵PID:2120
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 5116 -ip 51161⤵PID:2668
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 5116 -ip 51161⤵PID:4120